CN203772527U - Engine rubber mount dynamic stiffness testing device - Google Patents

Engine rubber mount dynamic stiffness testing device Download PDF

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Publication number
CN203772527U
CN203772527U CN201320773222.8U CN201320773222U CN203772527U CN 203772527 U CN203772527 U CN 203772527U CN 201320773222 U CN201320773222 U CN 201320773222U CN 203772527 U CN203772527 U CN 203772527U
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CN
China
Prior art keywords
dynamic stiffness
displacement
rubber mount
engine
testing device
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Expired - Fee Related
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CN201320773222.8U
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Chinese (zh)
Inventor
周鋐
刘浩
李响
吴亚波
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Tongji University
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Tongji University
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Priority to CN201320773222.8U priority Critical patent/CN203772527U/en
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Publication of CN203772527U publication Critical patent/CN203772527U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an engine rubber mount dynamic stiffness testing device. The engine rubber mount dynamic stiffness testing device is used for testing the dynamic stiffness of a rubber mount. The engine rubber mount dynamic stiffness testing device comprises a control unit as well as a load-displacement double-parameter loading unit, a displacement sensor and a force sensor which are connected with the control unit respectively; the load-displacement double-parameter loading unit is connected with an acting head through a piston rod, wherein the acting head applies a force on the rubber mount; the displacement sensor is arranged in the piston rod; and the force sensor is arranged between the acting head and the piston rod. Compared with the prior art, and according to the engine rubber mount dynamic stiffness testing device of the utility model, an MTS electro-hydraulic servo loading system is utilized to construct a test device, so that a suspension block can be better stabilized, and high stability can be realized; the displacement control mode of the MTS electro-hydraulic servo loading system is adopted to simulate the stress and vibration displacement situations of the engine rubber mount under an actual working state, and therefore, more accurate dynamic stiffness values can be obtained. The engine rubber mount dynamic stiffness testing device has a higher popularization value.

Description

A kind of proving installation of engine rubber suspension dynamic stiffness
Technical field
The utility model relates to a kind of proving installation, especially relates to a kind of proving installation of engine rubber suspension dynamic stiffness.
Background technology
In recent years, auto NVH performance more and more comes into one's own, and Engine Mounting System is connected power assembly with vehicle frame elasticity, can carry out two-way isolation to the vibration between power assembly and vehicle frame.Therefore, the design quality of Engine Mounting System directly has influence on the transmission of engine luggine to vehicle frame, affects the NVH performance of car load.
During due to engine operation, there is moment of inertia, thus while work, be dynamic loading to the acting force suspending, the therefore ability to resistance to deformation under the dynamic loading that suspends, probing into of dynamic stiffness has very strong practical significance to the improvement of suspension system.
Utility model content
The purpose of this utility model is exactly the proving installation that a kind of engine rubber suspension dynamic stiffness is provided in order to overcome the defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions: a kind of proving installation of engine rubber suspension dynamic stiffness, the dynamic stiffness suspending for testing rubber, it is characterized in that, comprise control module and the load being connected with control module respectively and displacement with dual parameter loading unit, displacement transducer and power sensor, described load and displacement with dual parameter loading unit are connected with the start head of exerting pressure to rubber mounting by piston rod, described displacement transducer is located in piston rod, and described power sensor is located between start head and piston rod.
A described start front end is fixed with steel flat board, and start head is exerted pressure to rubber mounting by steel flat board.
Described start head below is also provided with steel pedestal, and described rubber mounting is fixed on steel pedestal.
Described load and displacement with dual parameter loading unit adopt MTS Based on Electro-hydraulic Loading Servo System.
Described control module is IST8800 type switch board.
Compared with prior art, the utility model utilizes MTS Based on Electro-hydraulic Loading Servo System to build test unit, firmly suspension block, there is extraordinary stability, and the stressed and vibration displacement situation of the displacement control mode simulated engine rubber mounting that adopts MTS Based on Electro-hydraulic Loading Servo System under actual working state, can obtain more accurate dynamic stiffness value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is workflow diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, a kind of proving installation of engine rubber suspension dynamic stiffness, the dynamic stiffness suspending for testing rubber, it is characterized in that, comprise IST8800 type switch board and the MTS Based on Electro-hydraulic Loading Servo System 1, displacement transducer and the power sensor that are connected with IST8800 switch board respectively, described MTS Based on Electro-hydraulic Loading Servo System 1 is connected with the start of exerting pressure to rubber mounting M 2 by piston rod, described displacement transducer is located in piston rod, and described power sensor is located between start 2 and piston rod.Described start 2 front end are fixed with steel flat board 3, and start 2 is exerted pressure to rubber mounting M by steel flat board 3.Described start 2 below are also provided with steel pedestal 4, and described rubber mounting M is fixed on steel pedestal 4.
As shown in Figure 2, power assembly is generally placed on rubber mounting when mounted, power assembly just has a pressure to rubber mounting in the time not working, this pressure is called and preloads, and the utility model is exerted pressure to simulate this by MTS Based on Electro-hydraulic Loading Servo System to rubber mounting and preloaded; Rubber mounting can produce certain displacement vibration amount in the time of work, and the utility model applies displacement by MTS Based on Electro-hydraulic Loading Servo System to rubber mounting and simulates this displacement vibration amount.Described preloading with the size of displacement vibration amount set by operation IST control system by testing crew, and after setting, MTS Based on Electro-hydraulic Loading Servo System control start head starts fill order, to rubber mounting test accordingly, the step such as unloading.Meanwhile, displacement transducer starts image data, and passes IST control system back.
According to engine rubber suspension, moving displacement is no more than that off-position moves 1/10, and rule of thumb, the result of MTS Based on Electro-hydraulic Loading Servo System displacement control mode is better than the result of force control mode, so the present embodiment adopts displacement control mode, to rubber mounting load, maintenance and unloading operation, measure the time dependent signal of deflection, the time dependent signal of acting force of rubber mounting simultaneously, and under identical condition, same rubber mounting test specimen is repeated to twice test, and step is as follows:
1. assembling: be assembled on steel pedestal according to rubber mounting, and carry out pretension, adjust steel pedestal and start head, start head is kept vertically, start Tou center and rubber mounting center-aligned while ensureing to load;
2. the preparatory stage: after MTS Based on Electro-hydraulic Loading Servo System preheating 5min, Slow loading is to preloading F, then with amplitude S, the sinusoidal signal of frequency 30Hz, to a start exciting 10s, then unloads, then repeats above loading, maintenance and unloading operation;
3. experimental stage: by rubber mounting test specimen Slow loading to preloading F, in 30~100Hz frequency band, the amplitude equidistantly increasing progressively according to 2.5Hz taking frequency is as the sinusoidal signal of S is to rubber mounting exciting 10s under different frequency, and under each frequency, test carries out twice, records acting force and the rubber mounting displacement data about the time simultaneously.
4. last, in MATLAB, carry out dynamic stiffness calculating by the acting force temporal evolution data and the displacement temporal evolution data that obtain.

Claims (3)

1. the proving installation of an engine rubber suspension dynamic stiffness, the dynamic stiffness suspending for testing rubber, it is characterized in that, comprise control module and the load being connected with control module respectively and displacement with dual parameter loading unit, displacement transducer and power sensor, described load and displacement with dual parameter loading unit are connected with the start head of exerting pressure to rubber mounting by piston rod, described displacement transducer is located in piston rod, and described power sensor is located between start head and piston rod;
Described load and displacement with dual parameter loading unit adopt MTS Based on Electro-hydraulic Loading Servo System;
Described control module is IST8800 type switch board.
2. the proving installation of a kind of engine rubber suspension dynamic stiffness according to claim 1, is characterized in that, a described start front end is fixed with steel flat board, and start head is exerted pressure to rubber mounting by steel flat board.
3. the proving installation of a kind of engine rubber suspension dynamic stiffness according to claim 1, is characterized in that, described start head below is also provided with steel pedestal, and described rubber mounting is fixed on steel pedestal.
CN201320773222.8U 2013-11-28 2013-11-28 Engine rubber mount dynamic stiffness testing device Expired - Fee Related CN203772527U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320773222.8U CN203772527U (en) 2013-11-28 2013-11-28 Engine rubber mount dynamic stiffness testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320773222.8U CN203772527U (en) 2013-11-28 2013-11-28 Engine rubber mount dynamic stiffness testing device

Publications (1)

Publication Number Publication Date
CN203772527U true CN203772527U (en) 2014-08-13

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CN (1) CN203772527U (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104535313A (en) * 2014-12-26 2015-04-22 建新赵氏集团有限公司 Hydraulic suspension dynamic rapid testing tool
CN104634510A (en) * 2015-01-16 2015-05-20 王瑞 Quick detection fixture for hydraulic suspension damper
CN105157966A (en) * 2015-07-31 2015-12-16 广西玉柴机器股份有限公司 Engine damping cushion static stiffness test fixture
CN105716838A (en) * 2014-12-03 2016-06-29 中国飞机强度研究所 Single-point double force control actuator cylinder servo loading method
CN106197912A (en) * 2016-08-26 2016-12-07 常州市莱特气弹簧有限公司 Stiffness test device with auxiliary chamber air spring
CN106908205A (en) * 2017-03-09 2017-06-30 北京理工大学 A kind of test device of engine mounting dynamic stiffness
CN106932181A (en) * 2016-12-08 2017-07-07 同济大学 A kind of dynamic assembly suspension parameter identification experimental provision
CN107621343A (en) * 2017-09-07 2018-01-23 北京航空航天大学 A kind of device for testing dynamic stiffness
CN107843483A (en) * 2017-12-04 2018-03-27 滁州汽车与家电技术及装备研究院 A kind of high-frequency electrohydraulic servo dynamic stiffness tester
CN109141719A (en) * 2018-09-10 2019-01-04 宁波拓普集团股份有限公司 A kind of device and its measurement method that measurement automobile power assembly suspension system is preloading
CN111365401A (en) * 2020-02-20 2020-07-03 华南理工大学 Liquid resistance suspension runner test tool
CN111912621A (en) * 2020-07-09 2020-11-10 诺博橡胶制品有限公司 Static compression test device and static compression test method
CN114264460A (en) * 2021-12-15 2022-04-01 渤海造船厂集团有限公司 Dynamic stiffness testing device and mounting method for rubber shock absorber
CN114279854A (en) * 2021-12-22 2022-04-05 健研检测集团有限公司 Testing method of stiffness adjusting device of pile raft
CN115219125A (en) * 2021-09-10 2022-10-21 广州汽车集团股份有限公司 Dynamic stiffness testing method and system for rubber elastic part
CN115420488A (en) * 2022-08-31 2022-12-02 中国第一汽车股份有限公司 Buffer block rigidity test system and method, upper computer and medium

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105716838A (en) * 2014-12-03 2016-06-29 中国飞机强度研究所 Single-point double force control actuator cylinder servo loading method
CN104535313A (en) * 2014-12-26 2015-04-22 建新赵氏集团有限公司 Hydraulic suspension dynamic rapid testing tool
CN104634510A (en) * 2015-01-16 2015-05-20 王瑞 Quick detection fixture for hydraulic suspension damper
CN105157966A (en) * 2015-07-31 2015-12-16 广西玉柴机器股份有限公司 Engine damping cushion static stiffness test fixture
CN106197912A (en) * 2016-08-26 2016-12-07 常州市莱特气弹簧有限公司 Stiffness test device with auxiliary chamber air spring
CN106932181A (en) * 2016-12-08 2017-07-07 同济大学 A kind of dynamic assembly suspension parameter identification experimental provision
CN106908205A (en) * 2017-03-09 2017-06-30 北京理工大学 A kind of test device of engine mounting dynamic stiffness
CN107621343B (en) * 2017-09-07 2019-11-15 北京航空航天大学 A kind of device for testing dynamic stiffness
CN107621343A (en) * 2017-09-07 2018-01-23 北京航空航天大学 A kind of device for testing dynamic stiffness
CN107843483A (en) * 2017-12-04 2018-03-27 滁州汽车与家电技术及装备研究院 A kind of high-frequency electrohydraulic servo dynamic stiffness tester
CN109141719A (en) * 2018-09-10 2019-01-04 宁波拓普集团股份有限公司 A kind of device and its measurement method that measurement automobile power assembly suspension system is preloading
CN109141719B (en) * 2018-09-10 2020-08-04 宁波拓普集团股份有限公司 Device and method for measuring preload of automobile power assembly suspension system
CN111365401A (en) * 2020-02-20 2020-07-03 华南理工大学 Liquid resistance suspension runner test tool
CN111912621A (en) * 2020-07-09 2020-11-10 诺博橡胶制品有限公司 Static compression test device and static compression test method
CN115219125A (en) * 2021-09-10 2022-10-21 广州汽车集团股份有限公司 Dynamic stiffness testing method and system for rubber elastic part
CN114264460A (en) * 2021-12-15 2022-04-01 渤海造船厂集团有限公司 Dynamic stiffness testing device and mounting method for rubber shock absorber
CN114264460B (en) * 2021-12-15 2023-12-19 渤海造船厂集团有限公司 Dynamic stiffness testing device of rubber shock absorber and mounting method
CN114279854A (en) * 2021-12-22 2022-04-05 健研检测集团有限公司 Testing method of stiffness adjusting device of pile raft
CN114279854B (en) * 2021-12-22 2024-05-24 健研检测集团有限公司 Testing method of rigidity adjusting device of pile raft
CN115420488A (en) * 2022-08-31 2022-12-02 中国第一汽车股份有限公司 Buffer block rigidity test system and method, upper computer and medium

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140813

Termination date: 20171128

CF01 Termination of patent right due to non-payment of annual fee