CN115235776B - Torsional vibration monitoring method, device and system for leaf spring damper shaft system - Google Patents
Torsional vibration monitoring method, device and system for leaf spring damper shaft system Download PDFInfo
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- CN115235776B CN115235776B CN202210759594.9A CN202210759594A CN115235776B CN 115235776 B CN115235776 B CN 115235776B CN 202210759594 A CN202210759594 A CN 202210759594A CN 115235776 B CN115235776 B CN 115235776B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The application discloses a torsional vibration monitoring method, device and system for a leaf spring damper shaft system, which comprises the following steps: obtaining torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and constructing a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds; and obtaining a torsion amplitude value monitoring value of the outer ring inertia ring and a current corresponding load and rotation speed, and obtaining the torsion amplitude value monitoring value of the inner ring hub under the current load and rotation speed according to the torsion amplitude value relation library. And establishing a relation between the torsional vibration values of the inner ring hub and the outer ring inertia ring under the same load and the same rotating speed, further deriving the torsional vibration value of the inner ring hub by monitoring the torsional vibration value of the outer ring inertia ring, reflecting the actual shafting torsional vibration condition, and carrying out safety monitoring and risk early warning.
Description
Technical Field
The application relates to the technical field of torsional vibration testing of plate spring vibration absorbers, in particular to a torsional vibration monitoring method, device and system for a plate spring vibration absorber shaft system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The plate spring damper is widely applied as a hydraulic damping type torsional vibration damper in an internal combustion engine, and achieves the purpose of protecting a crankshaft by reducing torsional vibration of a shafting and reducing the stress of the crankshaft. As shown in fig. 1 (a) -1 (b), the leaf spring shock absorber comprises an inner ring hub, a leaf spring, an outer ring inertia block and the like, wherein the outer ring inertia ring is a rigid body formed by a middle block, a side plate, a main bolt, a fastening ring and the like; during operation, the inner ring hub is directly connected with the crankshaft, torsional vibration of the shafting is transmitted to the outer ring inertia ring through the reed, the inner ring and the outer ring move relatively, and the reed extrudes lubricating oil in the deformation process to generate shearing damping energy consumption.
During the engine bench test, the torsional vibration amplitude condition of the front end of the crankshaft in the whole working rotating speed range can be obtained through torsional vibration test, and further the torsional vibration stress level of the shafting is monitored. For the plate spring shock absorber, the inner ring hub is directly connected with the crankshaft, so that the real shafting torsional vibration condition can be reflected; however, due to reasons of structural space, weight and the like, signal teeth required by torsional vibration test cannot be directly machined on an inner ring hub of the plate spring damper, and torsional vibration monitoring is generally carried out by externally connecting a torsional vibration test signal tooth tool and installing a sensor;
however, mounting the sensor both axially and radially causes an increase in the axial length of the machine and makes the leaf spring damper more complex.
Secondly, because the plate spring vibration damper needs to be supplied with pressure lubricating oil in the working process and throws out the used lubricating oil through the oil drain hole, the plate spring vibration damper generally needs to be wrapped in a closed space; then, when the torsional vibration testing tool is externally connected, the problems of insufficient installation space, difficult sealing of additional lubricating oil and the like exist.
Moreover, short-time torsional vibration test can be carried out through measures such as temporary plugging during bench test, but if the real-time torsional vibration test system is used as a complete machine, the external torsional vibration test fixture can seriously influence the space and reliability of the complete machine.
Disclosure of Invention
In order to solve the problems, the application provides a torsion vibration monitoring method, a device and a system for a leaf spring damper shaft system, which are used for establishing a torsion vibration value relation between an inner ring hub and an outer ring inertia ring under the same load and the same rotating speed, further deriving the torsion vibration value of the inner ring hub by monitoring the torsion vibration value of the outer ring inertia ring, reflecting the actual torsion vibration condition of a shaft system and carrying out safety monitoring and risk early warning.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in a first aspect, the present application provides a method for monitoring torsional vibrations of a leaf spring damper shaft system, comprising:
obtaining torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and constructing a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds;
and obtaining a torsion amplitude value monitoring value of the outer ring inertia ring and a current corresponding load and rotation speed, and obtaining the torsion amplitude value monitoring value of the inner ring hub under the current load and rotation speed according to the torsion amplitude value relation library.
As an alternative implementation mode, a plurality of groups of different test tables are preset, and each group of test tables comprises a group of load and rotating speed so as to respectively test the torsion amplitude values of the inner ring hub and the outer ring inertia ring under different loads and rotating speeds.
As an alternative implementation manner, constructing a relation library of amplitude values, load and rotating speed of the inner ring hub and the outer ring inertia ring according to the torsion amplitude value test value and the corresponding load and rotating speed; and each group of load and rotating speed in the relational library has corresponding torsion amplitude value test values of the inner ring hub and the outer ring inertia ring.
As an alternative embodiment, a risk threshold is set, and when the torsion amplitude value monitoring value of the inner ring hub exceeds the risk threshold, risk early warning is performed.
As an alternative implementation mode, the plate spring shock absorber is provided with a sensor, and the side plate of the outer ring inertia ring is provided with signal teeth so as to obtain a torsion amplitude value monitoring value of the outer ring inertia ring.
In a second aspect, the present application provides a leaf spring damper axle system torsional vibration monitoring device comprising:
the relation library construction module is configured to acquire torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and construct a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds;
the monitoring value deducing module is configured to acquire the torsion amplitude monitoring value of the outer ring inertia ring and the current corresponding load and rotating speed, and acquire the torsion amplitude monitoring value of the inner ring hub under the current load and rotating speed according to the torsion amplitude relation library.
In a third aspect, the present application provides a leaf spring damper axle system torsional vibration monitoring system comprising: a leaf spring damper and a leaf spring damper shaft torsional vibration monitoring device according to the second aspect;
the plate spring vibration damper is provided with a sensor, and the outer ring inertia ring of the plate spring vibration damper is provided with signal teeth so as to obtain a torsion amplitude value monitoring value of the outer ring inertia ring;
the torsional vibration monitoring device of the leaf spring damper shaft system is used for monitoring the torsional vibration value of the inner ring hub according to the torsional vibration value monitoring value of the outer ring inertia ring.
As an alternative embodiment, signal teeth are machined on a side plate of the outer ring inertia ring; and a sensor is arranged on the outer side of the plate spring damper.
In a fourth aspect, the application provides an electronic device comprising a memory and a processor and computer instructions stored on the memory and running on the processor, which when executed by the processor, perform the method of the first aspect.
In a fifth aspect, the present application provides a computer readable storage medium storing computer instructions which, when executed by a processor, perform the method of the first aspect.
Compared with the prior art, the application has the beneficial effects that:
the application provides a torsional vibration monitoring method, a device and a system of a leaf spring damper shaft system, which are used for measuring the torsional vibration values of an inner ring hub and a ring inertia ring under different loads and rotating speeds through experiments, so as to construct a relation chart of the amplitude value of an inner ring and an outer ring and a load-rotating speed, and establish the torsional vibration value relation of the inner ring and the outer ring under the same load and rotating speed; and further, by monitoring the torsion amplitude value of the outer ring inertia ring and combining the load and the rotating speed, the torsion amplitude value of the inner ring hub is deduced, the actual shafting torsion amplitude condition is reflected, and safety monitoring and risk early warning are carried out.
According to the application, only the torsional vibration values of the inner ring hub and the outer ring inertia ring are tested and the relation is calibrated through an external torsional vibration testing tool in the test; in practical application, the monitoring value of the torsional vibration value of the inner ring hub can be deduced only by monitoring the torsional vibration value of the outer ring inertia ring, so that the practical torsional vibration condition of the shafting is reflected; under the condition of not affecting the space and reliability of the whole machine, the real-time monitoring of shafting torsional vibration is realized with simple structure, convenience, reliability and real reflection.
Additional aspects of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIGS. 1 (a) -1 (b) are schematic views of leaf spring shock absorbers;
FIG. 2 is a schematic diagram of a method for monitoring torsional vibrations of a leaf spring damper shaft system according to embodiment 1 of the present application;
FIG. 3 is a schematic diagram of monitoring the torsional amplitude value provided in embodiment 1 of the present application;
FIG. 4 is a schematic diagram of a measured torsional amplitude value of an inner ring hub according to embodiment 1 of the present application;
FIG. 5 is a diagram showing measured torsional amplitude values of an outer ring inertia ring according to embodiment 1 of the present application;
wherein, 1, reed, 2, inner ring hub, 3, outer ring inertia ring.
Detailed Description
The application is further described below with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms also are intended to include the plural forms, and furthermore, it is to be understood that the terms "comprises" and "comprising" and any variations thereof are intended to cover non-exclusive inclusions, such as, for example, processes, methods, systems, products or devices that comprise a series of steps or units, are not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or inherent to such processes, methods, products or devices.
Embodiments of the application and features of the embodiments may be combined with each other without conflict.
Example 1
As shown in fig. 2, the present embodiment provides a method for monitoring torsional vibration of a leaf spring damper shaft system, which is specific to an application scenario in which an engine using a leaf spring damper is required to monitor torsional vibration of a shaft system in real time, and specifically includes:
obtaining torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and constructing a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds;
and obtaining a torsion amplitude value monitoring value of the outer ring inertia ring and a current corresponding load and rotation speed, and obtaining the torsion amplitude value monitoring value of the inner ring hub under the current load and rotation speed according to the torsion amplitude value relation library.
In this embodiment, a plurality of different test tables are preset, and each test table includes a set of load and rotation speed; then, under different loads and rotating speeds, respectively testing the torsion amplitude values of the inner ring hub and the outer ring inertia ring of the plate spring damper;
then, according to the torsion amplitude value test value and the corresponding load and rotating speed, constructing a relation database of amplitude values, load and rotating speed of the inner ring hub and the outer ring inertia ring;
in the relational database, the corresponding torsion amplitude values of the inner ring hub and the outer ring inertia ring are respectively arranged under each group of load and rotating speed, so that the corresponding relation between the torsion amplitude values of the inner ring hub and the outer ring inertia ring under the same load and rotating speed is obtained.
In this embodiment, the constructed relational database includes a corresponding relationship between the torsion amplitude values of the inner ring hub and the outer ring inertia ring under a preset load and rotation speed, and then the torsion amplitude monitoring value of the inner ring hub can be determined by acquiring the torsion amplitude monitoring value of the outer ring inertia ring and the current load and rotation speed according to the corresponding relationship in the relational database.
In this embodiment, the monitoring value of the torsional vibration value of the inner ring hub can reflect the actual shafting torsional vibration condition, and by setting the risk threshold, when the monitoring value of the torsional vibration value of the inner ring hub exceeds the risk threshold, risk early warning can be performed in time.
In this embodiment, as shown in fig. 3, the torsional vibration value of the outer ring inertia ring is measured by machining signal teeth on the side plates of the outer ring inertia ring and installing a sensor outside the leaf spring damper. Fig. 4-5 show the torsion amplitude values of the inner ring hub and the outer ring inertia ring under a certain external characteristic working condition measured through tests.
According to the embodiment, the torsion amplitude values of the inner ring hub and the outer ring inertia ring are tested and the relation is calibrated only through the external torsion vibration testing tool in the test, and in the practical application, the torsion amplitude value monitoring value of the inner ring hub can be deduced only through monitoring the torsion amplitude value of the outer ring inertia ring, so that the practical torsion vibration condition of the shafting is reflected. Under the condition of not affecting the space and the reliability of the whole machine, the real-time monitoring device can realize the real-time monitoring of shafting torsional vibration with simple structure, convenience, reliability and real reflection.
Example 2
The embodiment provides a leaf spring shock absorber axle system torsional vibration monitoring devices, includes:
the relation library construction module is configured to acquire torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and construct a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds;
the monitoring value deducing module is configured to acquire the torsion amplitude monitoring value of the outer ring inertia ring and the current corresponding load and rotating speed, and acquire the torsion amplitude monitoring value of the inner ring hub under the current load and rotating speed according to the torsion amplitude relation library.
It should be noted that the above modules correspond to the steps described in embodiment 1, and the above modules are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in embodiment 1. It should be noted that the modules described above may be implemented as part of a system in a computer system, such as a set of computer-executable instructions.
Example 3
The present embodiment provides a leaf spring damper axle system torsional vibration monitoring system, including: a leaf spring damper and a leaf spring damper shaft system torsional vibration monitoring device described in embodiment 2;
the plate spring vibration damper is provided with a sensor, and the outer ring inertia ring of the plate spring vibration damper is provided with signal teeth so as to obtain a torsion amplitude value monitoring value of the outer ring inertia ring;
the torsional vibration monitoring device of the leaf spring damper shaft system is used for monitoring the torsional vibration value of the inner ring hub according to the torsional vibration value monitoring value of the outer ring inertia ring.
Alternatively, the outer ring inertia ring has signal teeth machined into the side plates.
As an alternative embodiment, a sensor is mounted on the outside of the leaf spring damper.
In this embodiment, the leaf spring damper includes an inner ring hub and an outer ring inertia ring; in the test, the torsional vibration values of the inner ring hub and the outer ring inertia ring under different loads and rotating speeds are tested through an external torsional vibration test tool, so that the torsional vibration value relation between the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds is constructed; in practical application, the monitoring value of the torsion amplitude value of the inner ring hub is deduced only by monitoring the torsion amplitude value of the outer ring inertia ring, so that the practical torsion vibration condition of the shafting is reflected.
In further embodiments, there is also provided a leaf spring damper axle system torsional vibration monitoring system comprising: the leaf spring damper, memory, processor, and computer instructions stored on the memory and running on the processor, which when executed by the processor, perform the method described in example 1. For brevity, the description is omitted here.
In further embodiments, there is also provided:
an electronic device comprising a memory and a processor and computer instructions stored on the memory and running on the processor, which when executed by the processor, perform the method described in embodiment 1. For brevity, the description is omitted here.
It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic device, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include read only memory and random access memory and provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type.
A computer readable storage medium storing computer instructions which, when executed by a processor, perform the method described in embodiment 1.
The method in embodiment 1 may be directly embodied as a hardware processor executing or executed with a combination of hardware and software modules in the processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.
Those of ordinary skill in the art will appreciate that the elements of the various examples described in connection with the present embodiments, i.e., the algorithm steps, can be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
While the foregoing description of the embodiments of the present application has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the application, but rather, it is intended to cover all modifications or variations within the scope of the application as defined by the claims of the present application.
Claims (7)
1. The torsional vibration monitoring method of the leaf spring damper shaft system is characterized by comprising the following steps of:
the method comprises the steps of acquiring torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of a plate spring shock absorber under different loads and rotating speeds, and constructing a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds according to the torsion amplitude value test values, wherein a sensor is arranged on the plate spring shock absorber, and signal teeth are arranged on side plates of the outer ring inertia ring so as to acquire the torsion amplitude value test values of the outer ring inertia ring;
acquiring a torsion amplitude value monitoring value of an outer ring inertia ring and a current corresponding load and rotation speed, and acquiring a torsion amplitude value monitoring value of an inner ring hub under the current load and rotation speed according to a torsion amplitude value relation library; the method comprises the steps that a plurality of groups of different test tables are preset, and each group of test tables comprises a group of load and rotating speed, so that the torsion amplitude values of an inner ring hub and an outer ring inertia ring are respectively tested under different loads and rotating speeds; according to the torsion amplitude value test value and the corresponding load and rotating speed, constructing a relation library of amplitude values, load and rotating speed of the inner ring hub and the outer ring inertia ring; and each group of load and rotating speed in the relational library has corresponding torsion amplitude value test values of the inner ring hub and the outer ring inertia ring.
2. A method for monitoring torsional vibrations of a leaf spring damper shaft system according to claim 1, wherein a risk threshold is set, and a risk early warning is performed when the monitored torsional vibration value of the inner ring hub exceeds the risk threshold.
3. The utility model provides a leaf spring shock absorber axle system torsional vibration monitoring devices which characterized in that includes:
the relation library construction module is configured to acquire torsion amplitude value test values of an inner ring hub and an outer ring inertia ring of the plate spring damper under different loads and rotating speeds, and construct a torsion amplitude value relation library of the inner ring hub and the outer ring inertia ring under the same loads and rotating speeds according to the torsion amplitude value test values, wherein the plate spring damper is provided with a sensor, and a side plate of the outer ring inertia ring is provided with signal teeth to acquire the torsion amplitude value test values of the outer ring inertia ring;
the monitoring value deduction module is configured to acquire a torsion amplitude value monitoring value of the outer ring inertia ring and a current corresponding load and rotation speed, and obtain the torsion amplitude value monitoring value of the inner ring hub under the current load and rotation speed according to the torsion amplitude value relation library; the method comprises the steps that a plurality of groups of different test tables are preset, and each group of test tables comprises a group of load and rotating speed, so that the torsion amplitude values of an inner ring hub and an outer ring inertia ring are respectively tested under different loads and rotating speeds; according to the torsion amplitude value test value and the corresponding load and rotating speed, constructing a relation library of amplitude values, load and rotating speed of the inner ring hub and the outer ring inertia ring; and each group of load and rotating speed in the relational library has corresponding torsion amplitude value test values of the inner ring hub and the outer ring inertia ring.
4. A leaf spring damper axle system torsional vibration monitoring system, comprising: a leaf spring damper and a leaf spring damper shaft system torsional vibration monitoring device of claim 3;
the torsional vibration monitoring device of the leaf spring damper shaft system is used for monitoring the torsional vibration value of the inner ring hub according to the torsional vibration value monitoring value of the outer ring inertia ring.
5. A leaf spring damper axle system torsional vibration monitoring system as defined in claim 4 wherein signal teeth are machined into the side plates of said outer race inertia ring; and a sensor is arranged on the outer side of the plate spring damper.
6. An electronic device comprising a memory and a processor and computer instructions stored on the memory and running on the processor, which when executed by the processor, perform the method of any of claims 1-2.
7. A computer readable storage medium storing computer instructions which, when executed by a processor, perform the method of any of claims 1-2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759594.9A CN115235776B (en) | 2022-06-30 | 2022-06-30 | Torsional vibration monitoring method, device and system for leaf spring damper shaft system |
| PCT/CN2023/076226 WO2024001209A1 (en) | 2022-06-30 | 2023-02-15 | Method, apparatus and system for monitoring torsional vibration of shaft system of leaf spring damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759594.9A CN115235776B (en) | 2022-06-30 | 2022-06-30 | Torsional vibration monitoring method, device and system for leaf spring damper shaft system |
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| CN115235776A CN115235776A (en) | 2022-10-25 |
| CN115235776B true CN115235776B (en) | 2023-08-18 |
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| CN202210759594.9A Active CN115235776B (en) | 2022-06-30 | 2022-06-30 | Torsional vibration monitoring method, device and system for leaf spring damper shaft system |
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| WO (1) | WO2024001209A1 (en) |
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| CN115235776B (en) * | 2022-06-30 | 2023-08-18 | 潍柴动力股份有限公司 | Torsional vibration monitoring method, device and system for leaf spring damper shaft system |
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| WO2024001209A1 (en) | 2024-01-04 |
| CN115235776A (en) | 2022-10-25 |
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