CN117007442B - Protective sleeve flexibility degree detection system of insulating flat flexible cable - Google Patents
Protective sleeve flexibility degree detection system of insulating flat flexible cable Download PDFInfo
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Abstract
The invention relates to the technical field of detection systems, in particular to a protection sleeve flexibility detection system of an insulated flat flexible cable, which comprises a Shore hardness detection module, a bending detection module, a staff information storage module, an external factor detection module, a control module and a communication module; the control module calculates a bending coefficient according to the related information, calculates a first flexibility evaluation coefficient selection function according to the bending coefficient, obtains information of the first flexibility evaluation coefficient according to the first flexibility evaluation coefficient selection function and transmits the information to the communication module; and the communication module transmits the information of the first flexibility evaluation coefficient to the user side. And calculating a first flexibility evaluation coefficient, a second flexibility evaluation coefficient and a third flexibility evaluation coefficient by respectively adopting the test data of the first sample to be tested and the test data of the second sample to be tested, so that the obtained first flexibility evaluation coefficient, second flexibility evaluation coefficient and third flexibility evaluation coefficient are more accurate.
Description
Technical Field
The invention relates to the technical field of detection systems, in particular to a protection sleeve flexibility detection system of an insulating flat flexible cable.
Background
The outside of cable can set up the protective sheath, because the demand cable of wiring need bend when walking, then has certain requirement to the flexibility degree of protective sheath.
A number of flexibility testing systems have been developed, and a great deal of research and reference has been made to find that the prior art has flexibility testing systems as disclosed in publication nos. CN116481920a and CN112198165A, which generally include a testing module for clamping a product to be tested and testing the flexibility of the product to be tested, however, the prior art only tests the flexibility of the protective sheath or the protective sheath connected with the cable, and the output result is only for the protective sheath or the protective sheath connected with the cable, and the accuracy of the test is not high.
Disclosure of Invention
The invention aims to improve the accuracy of testing, and provides a protection sleeve flexibility detection system for an insulated flat flexible cable, aiming at the defects.
The invention adopts the following technical scheme:
the system comprises a Shore hardness detection module, a bending detection module, a staff information storage module, an external factor detection module, a control module and a communication module, wherein the Shore hardness detection module, the bending detection module, the staff information storage module, the external factor detection module and the communication module are all in communication connection with the control module;
the shore hardness detection module is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested, storing information of the outer diameter of the cable and the outer diameter of the protective sleeve, and transmitting the information of the shore hardness of the first sample to be tested, the shore hardness of the second sample to be tested, the outer diameter of the cable and the outer diameter of the protective sleeve to the control module;
the bending detection module is used for performing bending test on the first to-be-tested sample and the second to-be-tested sample, storing information of load applied to the first to-be-tested sample, bending radius of the first to-be-tested sample, bending angle of the first to-be-tested sample, load applied to the second to-be-tested sample, bending radius of the second to-be-tested sample and bending angle of the second to-be-tested sample, and transmitting the information to the control module;
the staff information storage module is used for storing information of the on-duty days of staff and the error times of the staff on duty and transmitting the information to the control module;
the external factor detection module is used for detecting the actual environment temperature and the actual relative humidity, storing information of the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index, and transmitting the information of the actual environment temperature, the actual relative humidity, the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index to the control module;
the control module calculates a bending coefficient according to the related information, calculates a first flexibility evaluation coefficient selection function according to the bending coefficient, obtains information of the first flexibility evaluation coefficient according to the first flexibility evaluation coefficient selection function and transmits the information to the communication module;
and the communication module transmits the information of the first flexibility evaluation coefficient to the user side.
Optionally, the shore hardness detection module includes a shore hardness detection sub-module and a shore hardness information storage sub-module, where the shore hardness detection sub-module and the shore hardness information storage sub-module are both connected with the control module in a communication manner;
the shore hardness detection submodule is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested and transmitting the shore hardness to the control module;
the shore hardness information storage sub-module is used for storing information of the outer diameter of the cable and the outer diameter of the protective sleeve and transmitting the information to the control module.
Optionally, the bending detection module comprises a bending detection sub-module and a bending detection post-processing sub-module, and the bending detection sub-module and the bending detection post-processing sub-module are both in communication connection with the control module;
the bending detection submodule is used for carrying out bending test on the first sample to be tested and the second sample to be tested, storing information of load applied to the first sample to be tested and load applied to the second sample to be tested, and transmitting the information to the control module;
the bending detection post-processing submodule is used for storing information of the bending radius of the first sample to be tested, the bending angle of the first sample to be tested, the bending radius of the second sample to be tested and the bending angle of the second sample to be tested and transmitting the information to the control module.
Optionally, the external factor detection module comprises a temperature factor sub-module, a humidity factor sub-module and a position factor sub-module, and the temperature factor sub-module, the humidity factor sub-module and the position factor sub-module are all in communication connection with the control module;
the temperature factor sub-module is used for detecting the actual environment temperature, storing information of the set environment temperature and the temperature factor weight index, and transmitting the information of the actual environment temperature, the set environment temperature and the temperature factor weight index to the control module;
the humidity factor submodule is used for detecting actual relative humidity, storing information of set relative humidity and relative humidity factor weight index, and transmitting the information of the actual relative humidity, the set relative humidity and the relative humidity factor weight index to the control module;
the position factor sub-module is used for storing information of the test part coefficient and the test part factor weight index and transmitting the information to the control module.
Optionally, when the control module calculates the bending coefficient, the following equation is satisfied:
；
；
；
；
；
；
；
wherein,for bending coefficient +.>Is Shore hardness coefficient>For flexural modulus>For the experience coefficient of staff->Influence coefficients for external factors;
the shore hardness of the first sample to be tested is the shore hardness of the first sample to be tested, the first sample to be tested is a protective sleeve connected with a cable,for the outer diameter of the cable>Is the outer diameter of the protective sleeve>The shore hardness of the second sample to be tested is the shore hardness of the second sample to be tested, and the second sample to be tested is a protective sleeve which is not connected with a cable;
for the load applied to the first sample to be tested, < >>For the bending radius of the first sample to be tested, +.>For the bending angle of the first sample to be tested, +.>For the load applied to the second sample to be tested, < >>For the bending radius of the second sample to be tested, +.>The bending angle of the second sample to be tested;
for the on duty days of the staff, +.>The error times are the times of the workers during the on duty;
is a temperature coefficient>Is the weight index of temperature factors, +.>Is relative humidity coefficient, < >>Weight index for relative humidity factor, +.>For the test site coefficient, +.>The values of->Or->When the test site is the midpoint in the length direction +.>When the test site is not the midpoint in the length direction +.>，/>The weight index is a test part factor;
to set the ambient temperature>In order to be able to achieve a practical ambient temperature,and->And->All are larger than 5 ℃;
to set relative humidity, +.>Is the actual relative humidity.
Optionally, when the control module calculates the first flexibility rating coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the first flexibility rating factor, < >>And->The threshold value is selected for different bending coefficients, when +.>The first flexibility is better when +.>Indicating a first degree of flexibility in general whenIndicating a poor first degree of flexibility.
Optionally, the system further comprises a tensile testing module communicatively coupled to the control module;
the stretching test module is used for carrying out stretching test on the first sample to be tested and the second sample to be tested, storing information of stretching speed, initial tension, stretching cycle times of the first sample to be tested under the initial tension three times, stretching cycle times of the second sample to be tested under the initial tension two times and stretching cycle times of the second sample to be tested under the initial tension three times, and transmitting the information to the control module;
the control module calculates a tensile strength coefficient according to the related information, calculates a second flexibility evaluation coefficient selection function according to the tensile strength coefficient, obtains information of the second flexibility evaluation coefficient according to the second flexibility evaluation coefficient selection function, and transmits the information to the communication module;
and the communication module transmits the information of the second flexibility evaluation coefficient to the user side.
Optionally, when the control module calculates the tensile strength coefficient, the following formula is satisfied:
；
；
；
；
wherein,for the tensile strength coefficient>For the stretching speed +.>Is the average tension coefficient;
for the first sample to be tested, the tension coefficient is +.>The tensile coefficient of the second sample to be tested;
for initial tension +.>For the number of stretching cycles of the first sample to be tested under initial tension,for the number of stretching cycles of the first sample to be tested at twice the initial tensile force, +.>The number of stretching cycles of the first sample to be tested under three times of initial tension;
for the number of stretching cycles of the second sample to be tested under initial tension, +.>For the number of stretching cycles of the second sample to be tested under twice the initial tension, +.>The number of draw cycles at three times the initial tension for the second sample to be tested.
Optionally, when the control module calculates the second flexibility rating coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the second flexibility rating factor, < >>For the selection threshold value of the tensile strength coefficient, when +.>The second flexibility is better when +.>And is less flexible for the second time.
Optionally, the tensile test module is further configured to store information of a length of the first sample to be tested after stretching, a length of the first sample to be tested before stretching, a length of the second sample to be tested after stretching, a length of the second sample to be tested before stretching, a cross-sectional area of the first sample to be tested after stretching, a cross-sectional area of the first sample to be tested before stretching, a cross-sectional area of the second sample to be tested after stretching, and a cross-sectional area of the second sample to be tested before stretching, and transmit the information to the control module;
the control module calculates a deformation coefficient according to the related information, calculates a third flexibility evaluation coefficient selection function according to the deformation coefficient, obtains information of the third flexibility evaluation coefficient according to the third flexibility evaluation coefficient selection function and transmits the information to the communication module;
and the communication module transmits the information of the third flexibility evaluation coefficient to the user side.
The beneficial effects obtained by the invention are as follows:
1. calculating a first flexibility evaluation coefficient, a second flexibility evaluation coefficient and a third flexibility evaluation coefficient, wherein the first flexibility evaluation coefficient, the second flexibility evaluation coefficient and the third flexibility evaluation coefficient are respectively obtained by adopting the test data of the first sample to be tested and the test data of the second sample to be tested, and the obtained first flexibility evaluation coefficient, second flexibility evaluation coefficient and third flexibility evaluation coefficient are more accurate;
2. the bending test is influenced by the environment in the process of performing the bending test, so that the actual environment temperature, the actual relative humidity and the test site coefficient are considered in calculating the bending coefficient, and the obtained bending coefficient is more accurate.
For a further understanding of the nature and the technical aspects of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the invention.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of a shore hardness testing module according to the present invention;
FIG. 3 is a schematic view of a bending detection module according to the present invention;
FIG. 4 is a schematic diagram of an external factor detection module according to the present invention;
fig. 5 is a calculation flow chart of the control module in the second embodiment of the invention.
Detailed Description
The following embodiments of the present invention are described in terms of specific examples, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure herein. The invention is capable of other and different embodiments and its several details are capable of modification and variation in various respects, all without departing from the spirit of the present invention. The drawings of the present invention are merely schematic illustrations, and are not drawn to actual dimensions, and are stated in advance. The following embodiments will further illustrate the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
Embodiment one: the embodiment provides a protection sleeve flexibility detecting system for an insulated flat flexible cable. With reference to fig. 1 to 4.
The system comprises a Shore hardness detection module, a bending detection module, a staff information storage module, an external factor detection module, a control module and a communication module, wherein the Shore hardness detection module, the bending detection module, the staff information storage module, the external factor detection module and the communication module are all in communication connection with the control module;
the shore hardness detection module is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested, storing information of the outer diameter of the cable and the outer diameter of the protective sleeve, and transmitting the information of the shore hardness of the first sample to be tested, the shore hardness of the second sample to be tested, the outer diameter of the cable and the outer diameter of the protective sleeve to the control module;
the bending detection module is used for performing bending test on the first to-be-tested sample and the second to-be-tested sample, storing information of load applied to the first to-be-tested sample, bending radius of the first to-be-tested sample, bending angle of the first to-be-tested sample, load applied to the second to-be-tested sample, bending radius of the second to-be-tested sample and bending angle of the second to-be-tested sample, and transmitting the information to the control module;
the staff information storage module is used for storing information of the on-duty days of staff and the error times of the staff on duty and transmitting the information to the control module;
the external factor detection module is used for detecting the actual environment temperature and the actual relative humidity, storing information of the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index, and transmitting the information of the actual environment temperature, the actual relative humidity, the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index to the control module;
the control module calculates a bending coefficient according to the related information, calculates a first flexibility evaluation coefficient selection function according to the bending coefficient, obtains information of the first flexibility evaluation coefficient according to the first flexibility evaluation coefficient selection function and transmits the information to the communication module;
and the communication module transmits the information of the first flexibility evaluation coefficient to the user side.
Optionally, the shore hardness detection module includes a shore hardness detection sub-module and a shore hardness information storage sub-module, where the shore hardness detection sub-module and the shore hardness information storage sub-module are both connected with the control module in a communication manner;
the shore hardness detection submodule is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested and transmitting the shore hardness to the control module;
the shore hardness information storage sub-module is used for storing information of the outer diameter of the cable and the outer diameter of the protective sleeve and transmitting the information to the control module.
Optionally, the bending detection module comprises a bending detection sub-module and a bending detection post-processing sub-module, and the bending detection sub-module and the bending detection post-processing sub-module are both in communication connection with the control module;
the bending detection submodule is used for carrying out bending test on the first sample to be tested and the second sample to be tested, storing information of load applied to the first sample to be tested and load applied to the second sample to be tested, and transmitting the information to the control module;
the bending detection post-processing submodule is used for storing information of the bending radius of the first sample to be tested, the bending angle of the first sample to be tested, the bending radius of the second sample to be tested and the bending angle of the second sample to be tested and transmitting the information to the control module.
Optionally, the external factor detection module comprises a temperature factor sub-module, a humidity factor sub-module and a position factor sub-module, and the temperature factor sub-module, the humidity factor sub-module and the position factor sub-module are all in communication connection with the control module;
the temperature factor sub-module is used for detecting the actual environment temperature, storing information of the set environment temperature and the temperature factor weight index, and transmitting the information of the actual environment temperature, the set environment temperature and the temperature factor weight index to the control module;
the humidity factor submodule is used for detecting actual relative humidity, storing information of set relative humidity and relative humidity factor weight index, and transmitting the information of the actual relative humidity, the set relative humidity and the relative humidity factor weight index to the control module;
the position factor sub-module is used for storing information of the test part coefficient and the test part factor weight index and transmitting the information to the control module.
Optionally, when the control module calculates the bending coefficient, the following equation is satisfied:
；
；
；
；
；
；
；
wherein,for bending coefficient +.>Is Shore hardness coefficient>For flexural modulus>For the experience coefficient of staff->Influence coefficients for external factors;
the shore hardness of the first sample to be tested is the shore hardness of the first sample to be tested, the first sample to be tested is a protective sleeve connected with a cable,for the outer diameter of the cable>Is the outer diameter of the protective sleeve>The shore hardness of the second sample to be tested is the shore hardness of the second sample to be tested, and the second sample to be tested is a protective sleeve which is not connected with a cable; specifically, the outer diameter of the cable and the outer diameter of the protective sleeve are manually measured by a worker;
for the load applied to the first sample to be tested, < >>For the bending radius of the first sample to be tested, +.>For the bending angle of the first sample to be tested, +.>For the load applied to the second sample to be tested, < >>For the bending radius of the second sample to be tested, +.>The bending angle of the second sample to be tested; specifically, the bending radius of the first sample to be tested, the bending angle of the first sample to be tested, the bending radius of the second sample to be tested and the bending angle of the second sample to be tested are all manually measured by a worker;
for the on duty days of the staff, +.>The error times are the times of the workers during the on duty;
is a temperature coefficient>Is the weight index of temperature factors, +.>Is relative humidity coefficient, < >>Weight index for relative humidity factor, +.>For the test site coefficient, +.>The values of->Or->When the test site is the midpoint in the length direction +.>When the test site is not along the lengthMidpoint in the direction of the degree->，/>The weight index is a test part factor;
to set the ambient temperature>Is the actual ambient temperature, and->And->All are larger than 5 ℃; specifically, the environment temperature is set as the proper temperature during the test, and the actual environment temperature is the actual measurement temperature during the test;
to set relative humidity, +.>Is the actual relative humidity; specifically, the relative humidity is set to be the proper relative humidity at the time of the test, and the actual relative humidity is set to be the actual relative humidity at the time of the test.
Optionally, when the control module calculates the first flexibility rating coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the first flexibility rating factor, < >>And->The threshold value is selected for different bending coefficients, when +.>The first flexibility is better when +.>Indicating a first degree of flexibility in general whenIndicating a poor first degree of flexibility. />And->Preset by those skilled in the art according to the actual circumstances.
Optionally, the system further comprises a tensile testing module communicatively coupled to the control module;
the stretching test module is used for carrying out stretching test on the first sample to be tested and the second sample to be tested, storing information of stretching speed, initial tension, stretching cycle times of the first sample to be tested under the initial tension three times, stretching cycle times of the second sample to be tested under the initial tension two times and stretching cycle times of the second sample to be tested under the initial tension three times, and transmitting the information to the control module;
the control module calculates a tensile strength coefficient according to the related information, calculates a second flexibility evaluation coefficient selection function according to the tensile strength coefficient, obtains information of the second flexibility evaluation coefficient according to the second flexibility evaluation coefficient selection function, and transmits the information to the communication module;
and the communication module transmits the information of the second flexibility evaluation coefficient to the user side.
Optionally, when the control module calculates the tensile strength coefficient, the following formula is satisfied:
；
；
；
；
wherein,for the tensile strength coefficient>For the stretching speed +.>Is the average tension coefficient;
for the first sample to be tested, the tension coefficient is +.>The tensile coefficient of the second sample to be tested;
for initial tension +.>For the number of stretching cycles of the first sample to be tested under initial tension,for the number of stretching cycles of the first sample to be tested at twice the initial tensile force, +.>The number of stretching cycles of the first sample to be tested under three times of initial tension;
for the number of stretching cycles of the second sample to be tested under initial tension, +.>For the number of stretching cycles of the second sample to be tested under twice the initial tension, +.>The number of stretching cycles of the second sample to be tested under three times of initial tension;
specifically, the cycle number is counted by the first sample to be tested or the second sample to be tested under the state of no damage.
Optionally, when the control module calculates the second flexibility rating coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the second flexibility rating factor, < >>For the selection threshold value of the tensile strength coefficient, when +.>The second flexibility is better when +.>And is less flexible for the second time. />Preset by those skilled in the art according to the actual circumstances.
Optionally, the tensile test module is further configured to store information of a length of the first sample to be tested after stretching, a length of the first sample to be tested before stretching, a length of the second sample to be tested after stretching, a length of the second sample to be tested before stretching, a cross-sectional area of the first sample to be tested after stretching, a cross-sectional area of the first sample to be tested before stretching, a cross-sectional area of the second sample to be tested after stretching, and a cross-sectional area of the second sample to be tested before stretching, and transmit the information to the control module;
the control module calculates a deformation coefficient according to the related information, calculates a third flexibility evaluation coefficient selection function according to the deformation coefficient, obtains information of the third flexibility evaluation coefficient according to the third flexibility evaluation coefficient selection function and transmits the information to the communication module;
and the communication module transmits the information of the third flexibility evaluation coefficient to the user side.
Optionally, when the control module calculates the deformation coefficient, the following equation is satisfied:
；
；
；
wherein,for the deformation coefficient->For length difference->Is the section area ratio index;
for the length of the first sample to be tested after stretching, < >>For the length before stretching of the first sample to be tested, < >>For the length of the second test sample after stretching, < >>The length of the second sample to be tested before stretching;
for the cross-sectional area of the first sample to be tested after stretching, < >>For the cross-sectional area before stretching of the first sample to be tested, < >>For the cross-sectional area of the second sample to be tested after stretching, < >>The cross-sectional area of the second sample to be tested before stretching; in particular, the cross-sectional area may be measured by a worker or calculated by visual inspection.
Optionally, when the control module calculates the third flexibility rating coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the third flexibility rating factor, < >>For the selection of the threshold value of the deformation coefficient, whenThe third flexibility is better when +.>And the third flexibility is poor. />Preset by those skilled in the art according to the actual circumstances.
According to the embodiment, the problem that the selected sample to be tested is inaccurate in a traditional flexibility detection system is solved, so that the first flexibility evaluation coefficient, the second flexibility evaluation coefficient and the third flexibility evaluation coefficient are calculated by adopting the test data of the first sample to be tested and the test data of the second sample to be tested respectively, and the obtained first flexibility evaluation coefficient, second flexibility evaluation coefficient and third flexibility evaluation coefficient are more accurate.
In addition, the control module calculates a quality coefficient according to the first flexibility rating coefficient selection function, the second flexibility rating coefficient selection function and the third flexibility rating coefficient selection function, obtains flexibility information according to the quality coefficient and transmits the flexibility information to the communication module;
the communication module transmits flexibility information to the user side.
Embodiment two: the present embodiment includes the whole content of the first embodiment, and provides a system for detecting the flexibility of a protective sleeve of an insulated flat flexible cable, which is shown in fig. 5.
When the control module calculates the quality coefficient, the following formula is satisfied:
；
wherein,is a quality coefficient.
When the control module calculates flexibility information, the following formula is satisfied:
；
wherein,for flexibility information, <' > for the first time>And->Thresholds are selected for different quality coefficients.
According to the embodiment, the problem that the conventional flexibility degree detection system has single test data is solved, so that the quality coefficient in the embodiment is calculated according to detection information of three different dimensions of the first flexibility degree evaluation coefficient, the second flexibility degree evaluation coefficient and the third flexibility degree evaluation coefficient, the control module obtains flexibility degree information according to the quality coefficient, and the flexibility degree information can be used for feeding back the flexibility degree of a sample to be tested in a multi-dimensional mode.
The foregoing disclosure is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by the application of the present invention and the accompanying drawings are included in the scope of the invention, and in addition, the elements in the invention can be updated with the technical development.
Claims (1)
1. The system is characterized by comprising a Shore hardness detection module, a bending detection module, a worker information storage module, an external factor detection module, a control module and a communication module, wherein the Shore hardness detection module, the bending detection module, the worker information storage module, the external factor detection module and the communication module are all in communication connection with the control module;
the shore hardness detection module is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested, storing information of the outer diameter of the cable and the outer diameter of the protective sleeve, and transmitting the information of the shore hardness of the first sample to be tested, the shore hardness of the second sample to be tested, the outer diameter of the cable and the outer diameter of the protective sleeve to the control module;
the bending detection module is used for performing bending test on the first to-be-tested sample and the second to-be-tested sample, storing information of load applied to the first to-be-tested sample, bending radius of the first to-be-tested sample, bending angle of the first to-be-tested sample, load applied to the second to-be-tested sample, bending radius of the second to-be-tested sample and bending angle of the second to-be-tested sample, and transmitting the information to the control module;
the staff information storage module is used for storing information of the on-duty days of staff and the error times of the staff on duty and transmitting the information to the control module;
the external factor detection module is used for detecting the actual environment temperature and the actual relative humidity, storing information of the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index, and transmitting the information of the actual environment temperature, the actual relative humidity, the set environment temperature, the temperature factor weight index, the set relative humidity, the relative humidity factor weight index, the test part coefficient and the test part factor weight index to the control module;
the control module calculates a bending coefficient according to the related information, calculates a first flexibility evaluation coefficient selection function according to the bending coefficient, obtains information of the first flexibility evaluation coefficient according to the first flexibility evaluation coefficient selection function and transmits the information to the communication module;
the communication module transmits the information of the first flexibility evaluation coefficient to the user side;
the shore hardness detection module comprises a shore hardness detection sub-module and a shore hardness information storage sub-module, and the shore hardness detection sub-module and the shore hardness information storage sub-module are both in communication connection with the control module;
the shore hardness detection submodule is used for detecting the shore hardness of the first sample to be tested and the shore hardness of the second sample to be tested and transmitting the shore hardness to the control module;
the shore hardness information storage sub-module is used for storing information of the outer diameter of the cable and the outer diameter of the protective sleeve and transmitting the information to the control module;
the bending detection module comprises a bending detection sub-module and a bending detection post-processing sub-module, and the bending detection sub-module and the bending detection post-processing sub-module are both in communication connection with the control module;
the bending detection submodule is used for carrying out bending test on the first sample to be tested and the second sample to be tested, storing information of load applied to the first sample to be tested and load applied to the second sample to be tested, and transmitting the information to the control module;
the bending detection post-processing submodule is used for storing information of the bending radius of the first sample to be tested, the bending angle of the first sample to be tested, the bending radius of the second sample to be tested and the bending angle of the second sample to be tested and transmitting the information to the control module;
the external factor detection module comprises a temperature factor sub-module, a humidity factor sub-module and a position factor sub-module, and the temperature factor sub-module, the humidity factor sub-module and the position factor sub-module are all in communication connection with the control module;
the temperature factor sub-module is used for detecting the actual environment temperature, storing information of the set environment temperature and the temperature factor weight index, and transmitting the information of the actual environment temperature, the set environment temperature and the temperature factor weight index to the control module;
the humidity factor submodule is used for detecting actual relative humidity, storing information of set relative humidity and relative humidity factor weight index, and transmitting the information of the actual relative humidity, the set relative humidity and the relative humidity factor weight index to the control module;
the position factor sub-module is used for storing the information of the test part coefficient and the test part factor weight index and transmitting the information to the control module;
when the control module calculates the bending coefficient, the following formula is satisfied:
；
；
；
；
；
；
；
wherein,for bending coefficient +.>Is Shore hardness coefficient>For flexural modulus>For the experience coefficient of the staff,influence coefficients for external factors;
the Shore hardness of the first sample to be tested is the protection sleeve connected with the cable, < >>For the outer diameter of the cable>Is the outer diameter of the protective sleeve>The shore hardness of the second sample to be tested is the shore hardness of the second sample to be tested, and the second sample to be tested is a protective sleeve which is not connected with a cable;
for the load applied to the first sample to be tested, < >>For the bending radius of the first sample to be tested, +.>For the bending angle of the first sample to be tested, +.>For the load applied to the second sample to be tested, < >>For the second sample to be tested，/>The bending angle of the second sample to be tested;
for the on duty days of the staff, +.>The error times are the times of the workers during the on duty;
is a temperature coefficient>Is the weight index of temperature factors, +.>Is relative humidity coefficient, < >>Weight index for relative humidity factor, +.>For the test site coefficient, +.>The values of->Or->When the test site is the midpoint in the length direction +.>When the test part is notIs the midpoint in the length direction +.>，/>The weight index is a test part factor;
to set the ambient temperature>Is the actual ambient temperature, and->And->All are larger than 5 ℃;
to set relative humidity, +.>Is the actual relative humidity;
when the control module calculates a first flexibility evaluation coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the first flexibility rating factor, < >>And->The threshold value is selected for different bending coefficients, when +.>The first flexibility is better when +.>Indicating a first degree of flexibility in general whenIndicating a poor first flexibility;
the system also comprises a tensile test module in communication with the control module;
the stretching test module is used for carrying out stretching test on the first sample to be tested and the second sample to be tested, storing information of stretching speed, initial tension, stretching cycle times of the first sample to be tested under the initial tension three times, stretching cycle times of the second sample to be tested under the initial tension two times and stretching cycle times of the second sample to be tested under the initial tension three times, and transmitting the information to the control module;
the control module calculates a tensile strength coefficient according to the related information, calculates a second flexibility evaluation coefficient selection function according to the tensile strength coefficient, obtains information of the second flexibility evaluation coefficient according to the second flexibility evaluation coefficient selection function, and transmits the information to the communication module;
the communication module transmits the information of the second flexibility evaluation coefficient to the user side;
when the control module calculates the tensile strength coefficient, the following formula is satisfied:
；
；
；
；
wherein,for the tensile strength coefficient>For the stretching speed +.>Is the average tension coefficient;
for the first sample to be tested, the tension coefficient is +.>The tensile coefficient of the second sample to be tested;
for initial tension +.>For the number of stretching cycles of the first sample to be tested under initial tension, +.>For the number of stretching cycles of the first sample to be tested at twice the initial tensile force, +.>The number of stretching cycles of the first sample to be tested under three times of initial tension;
for the number of stretching cycles of the second sample to be tested under initial tension, +.>For the number of stretching cycles of the second sample to be tested under twice the initial tension, +.>The number of stretching cycles of the second sample to be tested under three times of initial tension;
when the control module calculates a second flexibility evaluation coefficient selection function, the following formula is satisfied:
；
wherein,selecting a function for the second flexibility rating factor, < >>For the selection of the threshold value of the tensile strength coefficient, whenThe second flexibility is better when +.>The second flexibility is poor;
the tensile test module is further used for storing information of the length of the first sample to be tested after being stretched, the length of the first sample to be tested before being stretched, the length of the second sample to be tested after being stretched, the length of the second sample to be tested before being stretched, the cross-sectional area of the first sample to be tested after being stretched, the cross-sectional area of the first sample to be tested before being stretched, the cross-sectional area of the second sample to be tested after being stretched and the cross-sectional area of the second sample to be tested before being stretched, and transmitting the information to the control module;
the control module calculates a deformation coefficient according to the related information, calculates a third flexibility evaluation coefficient selection function according to the deformation coefficient, obtains information of the third flexibility evaluation coefficient according to the third flexibility evaluation coefficient selection function and transmits the information to the communication module;
and the communication module transmits the information of the third flexibility evaluation coefficient to the user side.
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| CN107817171A (en) * | 2017-12-05 | 2018-03-20 | 中国航空综合技术研究所 | Be open cable sheath bend performance testing device and method of testing |
| CN108037030A (en) * | 2018-02-07 | 2018-05-15 | 青岛迪玛尔海洋工程有限公司 | Testing machine for the differently curved radius testing fatigue of cable |
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