CN112446088A - Shock absorber installation performance parameter optimization screening device and method - Google Patents
Shock absorber installation performance parameter optimization screening device and method Download PDFInfo
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 96
- 230000035939 shock Effects 0.000 title claims abstract description 81
- 238000012216 screening Methods 0.000 title claims abstract description 53
- 238000009434 installation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005457 optimization Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 6
- 238000010606 normalization Methods 0.000 claims description 41
- 230000003068 static effect Effects 0.000 claims description 35
- 238000002955 isolation Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 12
- 238000007405 data analysis Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
Abstract
The invention provides a device and a method for optimizing and screening installation performance parameters of a shock absorber. 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 pillar, a T-shaped groove workbench, a clamp and a control system; the two seat plates are sleeved with four guide posts to form a frame, a servo motor and a speed reduction transmission mechanism are arranged on the seat plate on the upper portion of the frame, the speed reduction transmission mechanism comprises a speed reducer and a trapezoidal lead screw, 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 connected with a shock absorber are arranged on the lower portion of the movable cross beam; a T-shaped groove workbench is arranged on a seat plate at the lower part of the frame, and a shock absorber is locked and fixed on the T-shaped groove workbench through bolts and clamps. The invention adopts a beam to move up and down along the guide post under the drive of a servo motor and a speed reduction transmission mechanism. The operation is simple, and the screening difficulty of the shock absorber is reduced. The method is suitable for 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 device and a method for optimizing and screening installation performance parameters of a shock absorber.
Background
The vibration absorber is an important device for realizing vibration noise control of ship mechanical equipment, and the performance of the vibration absorber directly influences the realization of acoustic design indexes of the mechanical equipment. Each shock absorber with the same type and the same specification has a plurality of parameters, such as static stiffness, dynamic stiffness, creep amount and the like, and although the requirements of plant acceptance are met, the parameters still have large differences, for example, the maximum difference of the static stiffness can reach 20%, so that the principle that the optimal combination parameters are selected for key equipment cannot be realized if random matching installation is carried out.
A set of complete parameter optimization screening method is urgently needed to be established for multi-type installation type equipment, a shock absorber installation performance parameter optimization screening device is developed, shock absorber installation performance parameters are subjected to optimization screening in batches, the shock isolation effect is optimized and matched, and the ship acoustic construction quality is improved.
Disclosure of Invention
The invention provides a device and a method for optimizing and screening installation performance parameters of a shock absorber, and aims to solve the technical problems of screening and optimizing installation of the shock absorber. After the method is optimized and screened, the vibration isolation effect, namely the vibration acceleration drop, of each group of vibration absorbers is improved by 2dB (10 Hz-8 kHz), and the technical problems of maximization of the vibration isolation effect of equipment and key control of key equipment are solved. Meanwhile, the workload of manual combination 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 optimization screening of the installation performance parameters of the vibration absorber is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a shock absorber installation performance parameter optimizing and 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 plates are sleeved with four guide posts to form a frame, a servo motor and a speed reduction transmission mechanism are arranged on the seat plate on the upper portion of the frame, the speed reduction transmission mechanism comprises a speed reducer and two trapezoidal lead screws, torque output by the speed reducer is averagely transmitted to the two trapezoidal lead screws, the two lead screws synchronously rotate to enable a movable cross beam sleeved on the guide posts to move up and down along the guide posts, and a force sensor and a connecting tool connected with a shock absorber are arranged on the lower portion of the movable cross; a T-shaped groove workbench is arranged on a seat plate at the lower part of the frame, and a shock absorber is locked and fixed on the T-shaped groove workbench through bolts and clamps.
In order to further solve the technical problem to be solved by the invention, in the control system provided by the invention, the control system consists of a display console, an analog input module, a coupler, an industrial personal computer, a displacement sensor, a tension and 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 the creep variable of each shock absorber.
A shock absorber installation performance parameter optimization screening method comprises the following steps:
(1) according to the shock absorber installation performance parameter optimizing and screening device, the static rigidity value and the creep variable value of the shock absorber and the dynamic rigidity value of the shock absorber are obtained through testing, and the screening device data analysis and processing module calculates the X-direction static rigidity normalization variance value, the Z-direction static rigidity normalization variance value, the X-direction dynamic rigidity normalization variance value, the Z-direction dynamic rigidity normalization variance value and the creep variable normalization value of each shock absorber.
(2) According to requirements, M shock absorbers form a group, N shock absorbers share a P combination method, 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 variable normalization value of each group of shock absorbers.
(3) The data analysis processing module of the shock absorber installation performance parameter optimization screening device is used for analyzing and processing data of the shock absorber installation performance parameter optimization screening device according to the screening equation Y =30.347+142.839X1-297.637X2+10.883X3-815.807X4-106.223X5 Calculating a Y value, wherein: x1: z-direction static stiffness normalization variance values; x2: z-direction dynamic stiffness normalization variance values; x3: normalizing the variance value of the creep amount; x4: normalizing the variance value of the static stiffness in the X direction; x5: normalizing the variance value of the X-direction dynamic stiffness; and Y is the vibration acceleration drop value of the vibration damper.
(4) The vibration isolation effect of the combination of the group of the vibration absorbers with the maximum Y value is the best, the combination is used for mechanical power equipment with the strictest acoustic control requirement, except the combination of the first group of the vibration absorbers, the combination of the vibration absorbers with the second Y value is used for equipment with the stricter acoustic control requirement, and the like.
(5) The screening of the batch of the shock absorbers is completed by the screening device according to the screening method, the shock absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured, and simultaneously the vibration isolation effect of each group of the shock absorbers, namely the vibration acceleration drop value of the shock absorbers, is improved by 2dB (10 Hz-8 kHz).
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, the shock absorber is locked and fixed through the bolt and the clamp, the movable cross beam sleeved on the guide post is arranged at the middle part of the frame, the force sensor and the connecting tool connected with the shock absorber are arranged at the lower part of the cross beam, and the cross beam moves up and down along the guide post under the driving of the servo motor and the speed reduction transmission mechanism to detect the parameters of the shock absorber; meanwhile, a control system is arranged to control the testing of the shock absorber. The operation is simple, and the screening difficulty of the shock absorber is reduced. The method is suitable for optimization screening application of the installation performance parameters of the ship shock absorber.
Drawings
FIG. 1 is a schematic structural view 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 control system architecture diagram of the present invention.
In the figure, 1, a servo motor, 2, a speed reduction transmission mechanism, 3, a movable cross beam, 3.1, a seat plate, 4, a force sensor, 5, a connecting tool, 6, a guide post, 7, a T-shaped groove workbench, 8, a shock absorber, 9, a bolt, 10, a clamp, 11, a display console, 12, an analog input module, 13, a coupler, 14, an industrial personal computer, 15, a displacement sensor, 16, a tension and compression sensor and 17, a servo driver are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the figure, the device for optimizing and screening the installation performance parameters of the shock absorber 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 plates 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 plate 3.1 at the upper part of the frame, the speed reduction transmission mechanism 2 comprises a speed reducer and trapezoidal lead screws, torque output by the speed reducer is averagely transmitted to the two trapezoidal lead screws, the two lead screws synchronously rotate to enable a movable cross beam 3 sleeved on the guide posts 6 to move 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 connected with a shock absorber 8; 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 control system is composed of a display console 11, an analog input module 12, a coupler 13, an industrial personal computer 14, a displacement sensor 15, a tension and compression sensor 16 and a servo driver 17, the display console 11 displays a static stiffness curve and a creep curve of the vibration damper 8, and static stiffness and creep variables of the vibration dampers are calculated.
A shock absorber installation performance parameter optimization screening method comprises the following steps:
(1) according to the shock absorber installation performance parameter optimizing and screening device, the static rigidity value and the creep variable value of the shock absorber and the dynamic rigidity value of the shock absorber are obtained through testing, and the screening device data analysis and processing module calculates the X-direction static rigidity normalization variance value, the Z-direction static rigidity normalization variance value, the X-direction dynamic rigidity normalization variance value, the Z-direction dynamic rigidity normalization variance value and the creep variable normalization value of each shock absorber.
(2) According to requirements, M shock absorbers form a group, N shock absorbers share a P combination method, 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 variable normalization value of each group of shock absorbers.
(3) The data analysis processing module of the shock absorber installation performance parameter optimization screening device is used for analyzing and processing data according to the screening equation Y =30.347+142.839X1-297.637X2+10.883X3-815.807X4-106.223X5 Calculating a Y value, wherein: x1: z-direction static stiffness normalization variance values; x2: z-direction dynamic stiffness normalization variance values; x3: normalizing the variance value of the creep amount; x4: normalizing the variance value of the static stiffness in the X direction; x5: normalizing the variance value of the X-direction dynamic stiffness; and Y is the vibration acceleration drop value of the vibration damper.
(4) The vibration isolation effect of the combination of the group of the vibration absorbers with the maximum Y value is the best, the combination is used for mechanical power equipment with the strictest acoustic control requirement, except the combination of the first group of the vibration absorbers, the combination of the vibration absorbers with the second Y value is used for equipment with the stricter acoustic control requirement, and the like.
(5) The batch of the shock absorbers are screened by a screening device according to the screening method, the shock absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured, and simultaneously the vibration isolation effect, namely the vibration acceleration drop value, of each group of the shock absorbers is improved by 2dB (10 Hz-8 kHz).
The working process of the invention is as follows:
firstly, the damper 8 is connected with the connecting tool 5 through a bolt 9, and the damper 8 is fixed on the T-shaped groove workbench 7 through a clamp 10.
Secondly, after test parameters are set on a display console 11 of the control system, a control instruction is sent to an industrial personal computer 14, the industrial personal computer 14 sends an instruction to a servo driver 17 through a 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 an analog input module 12 and then are 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 300 mm; the error of the test force measurement is within the range of +/-0.5 percent of the value; the stability of the test force is controlled by 0.5 percent; the displacement measurement range is +/-30 mm, the resolution is 0.01mm, and the displacement indicating value precision is within +/-0.5% of the indicating value; and outputting a constant load, wherein the load variation range does not exceed +/-1% of the set value.
And secondly, the display console 11 processes, arranges and calculates the test data information through the data analysis processing module, displays the static stiffness curve and the 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 in a database.
And secondly, after the batch shock absorber test is finished, calculating an X-direction static stiffness normalization variance value, a Z-direction static stiffness normalization variance value and an X creep variable normalization value of each shock absorber by taking the static stiffness and creep variable detection result as basic data. And meanwhile, an X-direction dynamic stiffness normalization variance value and a Z-direction dynamic stiffness normalization variance value are calculated according to the dynamic stiffness value of the self-contained shock absorber.
Finally, according to the data result, the data analysis module screens the equation Y =30.347+142.839X according to the shock absorber combination1-297.637X2+10.883X3-815.807X4-106.223X5And calculating a Y value, finishing the optimized combined screening of the shock absorber according to the requirement, and automatically outputting a screening result.
The invention has the characteristics that:
1) after the screening device and the screening method are optimized and combined, the vibration isolation effect, namely the vibration acceleration drop value, of each group of vibration absorbers is improved by 2dB (10 Hz-8 kHz), and the overall acoustic installation quality of the ship equipment is improved;
2) under the conditions of the same batch and the same technical parameters, the optimal shock absorber combination is screened out by matching the performance of the equipment, so that the key control of key equipment is realized, and the purchase cost of the shock absorber is greatly reduced;
3) the large process problem of the dispersion of the vibration isolation effect between the same-type equipment of the ship is solved, the rectification risk is reduced, and the integral construction efficiency is improved;
4) the method is simple and convenient to operate, the screening difficulty of the equipment shock absorber is greatly reduced, and the labor intensity of constructors is reduced;
5) the screening device and the screening method are also suitable for mounting the vibration absorbers of equipment in other industries, and have extremely strong universality.
Finally, it should be noted that: 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 or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a screening device is optimized to shock absorber installation performance parameter which characterized by: the 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 post (6), a T-shaped groove workbench (7), a clamp (10) and a control system; the two seat plates (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 plate (3.1) on the upper portion of the frame, the speed reduction transmission mechanism (2) comprises a speed reducer and a trapezoidal lead screw, the two lead screws synchronously rotate to enable a movable cross beam (3) sleeved on the guide posts (6) to move up and down along the guide posts (6), and the lower portion of the movable cross beam (3) is provided with a force sensor (4) and a connecting tool (5) connected with a shock absorber (8); a T-shaped groove working table (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 working table (7) through a bolt (9) and a clamp (10).
2. The shock absorber installation performance parameter optimizing and screening device as claimed in claim 1, wherein:
the control system is composed of a display console (11), an analog input module (12), a coupler (13), an industrial personal computer (14), a displacement sensor (15), a tension and compression sensor (16) and a servo driver (17), wherein the display console (11) displays a static rigidity curve and a creep curve of the vibration damper (8), and calculates the static rigidity and the creep variable of each vibration damper.
3. The method for implementing the device for optimizing and screening the installation performance parameters of the shock absorber as claimed in claim 1 is characterized in that:
a shock absorber installation performance parameter optimization screening method comprises the following steps:
1) according to the shock absorber installation performance parameter optimizing and screening device, testing to obtain a static stiffness value and a creep variable value of the shock absorber and a dynamic stiffness value carried by the shock absorber, and calculating 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 variable normalization value of each shock absorber by a screening device data analysis processing module;
2) according to requirements, M shock absorbers form a group, N shock absorbers share a P combination method, 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 variable normalization value of each group of shock absorbers;
3) the data analysis processing module of the shock absorber installation performance parameter optimization screening device is used for analyzing and processing data according to the screening equation Y =30.347+142.839X1-297.637X2+10.883X3-815.807X4-106.223X5 Calculating a Y value, wherein: x1: z-direction static stiffness normalization variance values; x2: z-direction dynamic stiffness normalization variance values; x3: normalizing the variance value of the creep amount; x4: normalizing the variance value of the static stiffness in the X direction; x5: normalizing the variance value of the X-direction dynamic stiffness; y is the vibration acceleration drop value of the vibration absorber;
4) the vibration isolation effect of the combination of the group of the vibration absorbers with the maximum Y value is the best, the combination is used for mechanical power equipment with the strictest acoustic control requirement, except the combination of the first group of the vibration absorbers, the combination of the vibration absorbers with the second Y value is used for equipment with the stricter acoustic control requirement, and the like;
5) the batch of the shock absorbers are screened by a screening device according to the screening method, the shock absorber combination with the optimal performance is selected, the vibration isolation performance of key equipment is ensured, and simultaneously the vibration isolation effect, namely the vibration acceleration drop value, of each group of the shock absorbers is improved by 2dB (10 Hz-8 kHz).
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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 |
| CN104713721A (en) * | 2015-04-10 | 2015-06-17 | 株洲时代新材料科技股份有限公司 | Dynamic performance test platform of vibration isolator system and test method thereof |
| 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
Patent Citations (8)
| 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 |
| 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 |
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| 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 |
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