CN112446088B - Vibration damper installation performance parameter optimization screening device and method - Google Patents
Vibration damper installation performance parameter optimization screening device and method Download PDFInfo
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- 238000012216 screening Methods 0.000 title claims abstract description 49
- 238000009434 installation Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005457 optimization Methods 0.000 title claims abstract description 24
- 239000006096 absorbing agent Substances 0.000 claims abstract description 66
- 230000035939 shock Effects 0.000 claims abstract description 29
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- 230000007246 mechanism Effects 0.000 claims abstract description 15
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 35
- 238000010606 normalization Methods 0.000 claims description 18
- 238000002955 isolation Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 12
- 238000007405 data analysis Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
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- 238000006073 displacement reaction Methods 0.000 claims description 8
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- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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Abstract
The invention provides a vibration damper installation performance parameter optimization screening device and method. The device comprises a servo motor, a speed reduction transmission mechanism, a movable cross beam, a seat plate, a force sensor, a connecting tool, a guide post, a T-shaped groove workbench, a clamp and a control system; the two seat boards are sleeved with four guide posts to form a frame, a servo motor and a speed reduction transmission mechanism are arranged on the seat board at the upper part of the frame, the speed reduction transmission mechanism comprises a speed reducer and a trapezoidal screw rod, a movable cross beam sleeved on the guide posts moves up and down along the guide posts, and a force sensor and a connecting tool for connecting a shock absorber are arranged at the lower part of the movable cross beam; the seat board at the lower part of the frame is provided with a T-shaped groove workbench, and the T-shaped groove workbench is locked and fixed with the shock absorber through bolts and a clamp. The invention adopts the beam to move up and down along the guide post under the drive of the servo motor and the speed reduction transmission mechanism. The operation is simple, and the screening difficulty of the shock absorber is reduced. The method is suitable for being used as the optimization screening application of the installation performance parameters of the ship shock absorber.
Description
Technical Field
The invention relates to a mechanical equipment installation method in the field of ships, in particular to a vibration damper installation performance parameter optimization screening device and method.
Background
The vibration damper is an important device for controlling the vibration noise of the ship mechanical equipment, and the performance of the vibration damper directly influences the realization of the acoustic design index of the mechanical equipment. Each damper with the same type and specification has a plurality of parameters, such as static stiffness, dynamic stiffness, creep quantity and the like, and although all the parameters meet the requirements of acceptance in factories, the parameters still have large difference, such as the maximum difference of the static stiffness can reach 20%, so that the principle that key equipment selects optimal combination parameters can not be realized if the damper is installed in a random matching way.
A complete parameter optimization screening method is established for equipment with multiple installation types, a vibration damper installation performance parameter optimization screening device is developed, vibration damper installation performance parameters are optimized and screened in batches, vibration isolation effect optimization matching is achieved, and ship acoustic construction quality is improved.
Disclosure of Invention
In order to solve the technical problems of vibration damper screening and optimized installation, the invention provides a vibration damper installation performance parameter optimizing and screening device and method. According to the method, after optimization and screening, the vibration isolation effect of each group of vibration absorbers, namely the vibration acceleration fall is improved by 2dB (10 Hz-8 kHz), so that the technical problems of maximizing the vibration isolation effect of equipment and controlling key equipment are solved. Meanwhile, the workload of manual combined screening of the vibration isolation effect optimization control difficulty of mechanical equipment installation is reduced, the mechanical equipment installation efficiency is improved, and the technical problem of vibration absorber installation performance parameter optimization screening is solved.
The invention solves the technical problems by adopting the scheme that:
the vibration damper installation performance parameter optimization screening device comprises a servo motor, a speed reduction transmission mechanism, a movable cross beam, a seat plate, a force sensor, a connecting tool, a guide pillar, a T-shaped groove workbench, a clamp and a control system; the two seat boards are sleeved with four guide posts to form a frame, a servo motor and a speed reduction transmission mechanism are arranged on the seat board on the upper part of the frame, the speed reduction transmission mechanism comprises a speed reducer and trapezoidal screw rods, torque output by the speed reducer is evenly transmitted to the two trapezoidal screw rods, the two screw rods synchronously rotate, so that a movable cross beam sleeved on the guide posts moves up and down along the guide posts, and a force sensor and a connecting tool for connecting a shock absorber are arranged on the lower part of the movable cross beam; the seat board at the lower part of the frame is provided with a T-shaped groove workbench, and the T-shaped groove workbench is locked and fixed with the shock absorber through bolts and a clamp.
In order to further solve the technical problems to be solved, the control system provided by the invention comprises a display console, an analog input module, a coupler, an industrial personal computer, a displacement sensor, a tension-compression sensor and a servo driver, wherein the display console displays a static stiffness curve and a creep curve of the shock absorber, and calculates the static stiffness and creep quantity of each shock absorber.
A method for optimizing and screening installation performance parameters of a shock absorber comprises the following steps:
(1) According to the vibration absorber installation performance parameter optimization screening device, the static stiffness value and the creep value of the vibration absorber and the dynamic stiffness value of the vibration absorber are obtained through testing, and the screening device data analysis processing module calculates an X-direction static stiffness normalized variance value, a Z-direction static stiffness normalized variance value, an X-direction dynamic stiffness normalized variance value, a Z-direction dynamic stiffness normalized variance value and a creep value normalized value of each vibration absorber.
(2) According to the requirements, M vibration absorbers form a group, P combination methods are adopted in total for N vibration absorbers, and the screening device data analysis processing module calculates an X-direction static stiffness normalization variance value, a Z-direction static stiffness normalization variance value, an X-direction dynamic stiffness normalization variance value, a Z-direction dynamic stiffness normalization variance value and a creep quantity normalization value of each group of vibration absorbers.
(3) The screening device data analysis processing module analyzes and processes the data according to a screening equation Y=30.347+142.839X 1 -297.637X 2 +10.883X 3 -815.807X 4 -106.223X 5 Calculating a Y value, wherein: x is X 1 : z-direction static stiffness normalized variance value; x is X 2 : z-direction dynamic stiffness normalized variance value; x is X 3 : creep amount normalization variance value; x is X 4 : normalized variance value of X-direction static stiffness; x is X 5 : normalizing the variance value of the X-direction dynamic stiffness; y is the vibration acceleration drop value of the shock absorber.
(4) The group of damper combinations with the largest Y value has the best vibration isolation effect, is used for mechanical power equipment with the most strict acoustic control requirements, and is used for equipment with more strict acoustic control requirements except the first group of damper combinations, and the like.
(5) According to the screening method, the vibration absorbers in batches are screened by the vibration absorber installation performance parameter optimization screening device, the vibration absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured within the range of 10Hz-8kHz, and meanwhile, the vibration isolation effect of each group of vibration absorbers, namely the vibration acceleration drop value of the vibration absorbers, is improved by 2dB.
The invention has the advantages that as the T-shaped groove workbench is arranged on the seat plate at the lower part of the frame and the shock absorber is locked and fixed through the bolts and the clamps, the middle part of the frame is provided with the movable cross beam sleeved on the guide post, the lower part of the cross beam is provided with the force sensor and the connecting tool for connecting the shock absorber, and the cross beam moves up and down along the guide post under the drive of the servo motor and the speed reduction transmission mechanism, and the parameters of the shock absorber are detected; meanwhile, a control system is arranged to control the test of the shock absorber. The operation is simple, and the screening difficulty of the shock absorber is reduced. The method is suitable for being used as the optimization screening application of the installation performance parameters of the ship shock absorber.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the vertical clamp installation of the present invention;
FIG. 4 is a diagram of a control system architecture of the present invention.
In the figure, a servo motor, a speed reducing transmission mechanism, a movable cross beam, a seat plate, a force sensor and a connecting tool, wherein the movable cross beam is arranged in the seat plate, the force sensor is arranged in the seat plate, the connecting tool is arranged in the seat plate, the guide pillar is arranged in the seat plate, the T-shaped groove working table is arranged in the seat plate, the shock absorber is arranged in the seat plate, the bolt is arranged in the seat plate, the clamp is arranged in the seat plate, the display control table is arranged in the seat plate, the analog input module is arranged in the seat plate, the coupler is arranged in the seat plate, the industrial control computer is arranged in the seat plate, the displacement sensor is arranged in the displacement sensor, and the pulling pressure sensor is arranged in the seat plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the figure, the vibration damper installation performance parameter optimization screening device comprises a servo motor 1, a speed reduction transmission mechanism 2, a movable cross beam 3, a seat board 3.1, a force sensor 4, a connecting tool 5, a guide post 6, a T-shaped groove workbench 7, a clamp 10 and a control system; the two seat boards 3.1 are sleeved with four guide posts 6 to form a frame, the seat board 3.1 at the upper part of the frame is provided with a servo motor 1 and a speed reduction transmission mechanism 2, the speed reduction transmission mechanism 2 comprises a speed reducer and trapezoidal screw rods, the torque output by the speed reducer is evenly transmitted to the two trapezoidal screw rods, the two screw rods synchronously rotate, so that a movable cross beam 3 sleeved on the guide posts 6 moves up and down along the guide posts 6, and the lower part of the movable cross beam 3 is provided with a force sensor 4 and a connecting tool 5 for connecting a shock absorber 8; the seat board 3.1 at the lower part of the frame is provided with a T-shaped groove workbench 7, and the T-shaped groove workbench 7 is locked and fixed with a damper 8 through a bolt 9 and a clamp 10.
The control system consists of a display control console 11, an analog input module 12, a coupler 13, an industrial personal computer 14, a displacement sensor 15, a tension-compression sensor 16 and a servo driver 17, wherein the display control console 11 displays a static stiffness curve and a creep curve of the shock absorber 8, and calculates the static stiffness and the creep quantity of each shock absorber.
A method for optimizing and screening installation performance parameters of a shock absorber comprises the following steps:
(1) According to the vibration absorber installation performance parameter optimization screening device, the static stiffness value and the creep value of the vibration absorber and the dynamic stiffness value of the vibration absorber are obtained through testing, and the screening device data analysis processing module calculates an X-direction static stiffness normalized variance value, a Z-direction static stiffness normalized variance value, an X-direction dynamic stiffness normalized variance value, a Z-direction dynamic stiffness normalized variance value and a creep value normalized value of each vibration absorber.
(2) According to the requirements, M vibration absorbers form a group, P combination methods are adopted in total for N vibration absorbers, and the screening device data analysis processing module calculates an X-direction static stiffness normalization variance value, a Z-direction static stiffness normalization variance value, an X-direction dynamic stiffness normalization variance value, a Z-direction dynamic stiffness normalization variance value and a creep quantity normalization value of each group of vibration absorbers.
(3) The screening device data analysis processing module analyzes and processes the data according to a screening equation Y=30.347+142.839X 1 -297.637X 2 +10.883X 3 -815.807X 4 -106.223X 5 Calculating a Y value, wherein: x is X 1 : z-direction static stiffness normalized variance value; x is X 2 : z-direction dynamic stiffness normalized variance value; x is X 3 : creep amount normalization variance value; x is X 4 : normalized variance value of X-direction static stiffness; x is X 5 : normalizing the variance value of the X-direction dynamic stiffness; y is the vibration acceleration drop value of the shock absorber.
(4) The group of damper combinations with the largest Y value has the best vibration isolation effect, is used for mechanical power equipment with the most strict acoustic control requirements, and is used for equipment with more strict acoustic control requirements except the first group of damper combinations, and the like.
(5) According to the screening method, the vibration absorbers in batches are screened by the vibration absorber installation performance parameter optimization screening device, the vibration absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured within the range of 10Hz-8kHz, and meanwhile, the vibration isolation effect of each group of vibration absorbers, namely the vibration acceleration drop value, is improved by 2dB.
The working process of the invention comprises the following steps:
firstly, the damper 8 is connected with the connecting tool 5 through bolts 9, and the damper 8 is fixed on the T-shaped groove workbench 7 through a clamp 10.
Secondly, after the display console 11 of the control system sets test parameters, the industrial personal computer 14 sends a control instruction to the servo driver 17 through the coupler 13, the servo motor 1 is controlled to drive the movable cross beam 3 to realize loading, and at the moment, analog signals generated by the tension and compression sensor 16 and the displacement sensor 15 are transmitted to the industrial personal computer 14 through the analog quantity input module 12 and then uploaded to the display console 11.
Secondly, the loading speed of the test device is 0-200mm/min, and the speed is adjustable; the loading stroke is 300mm; the test force measurement error is within a range of +/-0.5% indication value; test force control stability 0.5% indication; the displacement measurement range is +/-30 mm, the resolution is 0.01mm, and the displacement indication precision is within +/-0.5% of the indication value; and outputting a constant load, wherein the load change range is not more than +/-1% of the set value.
And secondly, the display console 11 processes, sorts and calculates the test data information through the data analysis processing module, displays a static stiffness curve and a creep curve in real time, automatically calculates the static stiffness and the creep amount of each shock absorber and stores the static stiffness and the creep amount into a database.
And secondly, after the batch vibration damper test is finished, calculating an X-direction static stiffness normalized variance value, a Z-direction static stiffness normalized variance value and an X creep amount normalized value of each vibration damper by taking the static stiffness and creep amount detection result as basic data. And meanwhile, calculating an X-direction dynamic stiffness normalized variance value and a Z-direction dynamic stiffness normalized variance value according to the dynamic stiffness value of the damper.
Finally, according to the data result, the data analysis module screens the equation Y=30.347+142.839X according to the damper combination 1 -297.637X 2 +10.883X 3 -815.807X 4 -106.223X 5 And calculating a Y value, completing optimization combination screening of the shock absorber according to the requirement, and automatically outputting a screening result.
The invention is characterized in that:
1) After the optimization combination of the screening device and the method, the vibration isolation effect, namely the vibration acceleration drop value, of each group of vibration absorbers is improved by 2dB (10 Hz-8 kHz), so that the overall acoustic installation quality of ship equipment is improved;
2) Under the conditions of the same batch and the same technical parameters, the optimal damper combination is screened out by matching the equipment performance, so that key equipment key control is realized, and the purchase cost of the damper is greatly reduced;
3) The technical problem of large dispersion of vibration isolation effect between ship-type equipment is solved, the rectifying and modifying risk is reduced, and the overall construction efficiency is improved;
4) The method is simple and convenient to operate, the screening difficulty of the equipment damper is greatly reduced, and the labor intensity of constructors is reduced;
5) The screening device and the screening method are also suitable for installation of equipment vibration dampers in other industries, and have extremely strong universality.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (2)
1. A vibration damper installation performance parameter optimization screening method is characterized in that:
the vibration damper installation performance parameter optimization screening device comprises a servo motor (1), a speed reduction transmission mechanism (2), a movable cross beam (3), a seat plate (3.1), a force sensor (4), a connecting tool (5), a guide pillar (6), a T-shaped groove workbench (7), a clamp (10) and a control system; the two seat boards (3.1) are sleeved with four guide posts (6) to form a frame, a servo motor (1) and a speed reduction transmission mechanism (2) are arranged on the seat board (3.1) at the upper part of the frame, the speed reduction transmission mechanism (2) comprises a speed reducer and a trapezoidal screw rod, the two screw rods synchronously rotate, a movable cross beam (3) sleeved on the guide posts (6) moves up and down along the guide posts (6), and a force sensor (4) and a connecting tool (5) connected with a shock absorber (8) are arranged at the lower part of the movable cross beam (3); a T-shaped groove workbench (7) is arranged on a seat plate (3.1) at the lower part of the frame, and a shock absorber (8) is locked and fixed on the T-shaped groove workbench (7) through a bolt (9) and a clamp (10);
the method comprises the following steps:
1) According to the vibration absorber installation performance parameter optimization screening device, the obtained vibration absorber static stiffness value and creep value and the vibration absorber self-carried dynamic stiffness value are tested, and a screening device data analysis processing module calculates an X-direction static stiffness normalized variance value, a Z-direction static stiffness normalized variance value, an X-direction dynamic stiffness normalized variance value, a Z-direction dynamic stiffness normalized variance value and a creep quantity normalized value of each vibration absorber;
2) According to the requirements, M vibration absorbers form a group, P combination methods are added to N vibration absorbers in total, and a screening device data analysis processing module calculates an X-direction static stiffness normalization variance value, a Z-direction static stiffness normalization variance value, an X-direction dynamic stiffness normalization variance value, a Z-direction dynamic stiffness normalization variance value and a creep quantity normalization value of each group of vibration absorbers;
3) The screening device data analysis processing module analyzes and processes the data according to a screening equation Y=30.347+142.839X 1 -297.637X 2 +10.883X 3 -815.807X 4 -106.223X 5 Calculating a Y value, wherein: x is X 1 : z-direction static stiffness normalized variance value; x is X 2 : z-direction dynamic stiffness normalized variance value; x is X 3 : creep amount normalization variance value; x is X 4 : normalized variance value of X-direction static stiffness; x is X 5 : normalizing the variance value of the X-direction dynamic stiffness; y is the vibration acceleration drop value of the vibration damper;
4) The group of vibration damper combinations with the largest Y value has the best vibration isolation effect, is used for mechanical power equipment with the strictest acoustic control requirement, and is used for equipment with stricter acoustic control requirement except the first group of vibration damper combinations, and the like;
5) According to the screening method, the vibration absorbers in batches are screened by the vibration absorber installation performance parameter optimization screening device, the vibration absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured within the range of 10Hz-8kHz, and meanwhile, the vibration isolation effect of each group of vibration absorbers, namely the vibration acceleration drop value, is improved by 2dB.
2. The method for optimizing and screening the installation performance parameters of the shock absorber according to claim 1, which is characterized in that:
the control system consists of a display control console (11), an analog input module (12), a coupler (13), an industrial personal computer (14), a displacement sensor (15), a tension-compression sensor (16) and a servo driver (17), wherein the display control console (11) displays a static stiffness curve and a creep curve of the shock absorber (8) and calculates the static stiffness and the creep quantity of each shock absorber.
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| KR19990059409A (en) * | 1997-12-30 | 1999-07-26 | 정몽규 | 감쇠 Damping force measuring device of absorber |
| WO2012152827A1 (en) * | 2011-05-11 | 2012-11-15 | Dcns | Shock-filtering set-point resilient supporting system intended, in particular, for equipment suspension on board a vessel |
| CN103335854A (en) * | 2013-06-27 | 2013-10-02 | 福建工程学院 | Rubber shock absorber measurement and control system based on acceleration feedback information drive |
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| CN106441747A (en) * | 2016-09-12 | 2017-02-22 | 北京强度环境研究所 | Axial static rigidity tester for metal vibration damper |
| CN206292020U (en) * | 2016-11-25 | 2017-06-30 | 上汽通用五菱汽车股份有限公司 | A kind of automatic buffer glue Static stiffness test device |
| CN108518448A (en) * | 2018-04-11 | 2018-09-11 | 渤海造船厂集团有限公司 | A kind of damper installation capability control method |
| CN210101657U (en) * | 2019-05-23 | 2020-02-21 | 苏州集成校准检测认证有限公司 | High-frequency dynamic stiffness test equipment for track fastener |
-
2020
- 2020-10-29 CN CN202011184264.9A patent/CN112446088B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990059409A (en) * | 1997-12-30 | 1999-07-26 | 정몽규 | 감쇠 Damping force measuring device of absorber |
| WO2012152827A1 (en) * | 2011-05-11 | 2012-11-15 | Dcns | Shock-filtering set-point resilient supporting system intended, in particular, for equipment suspension on board a vessel |
| CN103335854A (en) * | 2013-06-27 | 2013-10-02 | 福建工程学院 | Rubber shock absorber measurement and control system based on acceleration feedback information drive |
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| CN106441747A (en) * | 2016-09-12 | 2017-02-22 | 北京强度环境研究所 | Axial static rigidity tester for metal vibration damper |
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