CN103852230A - Vibration test device for small parts of automobile - Google Patents
Vibration test device for small parts of automobile Download PDFInfo
- Publication number
- CN103852230A CN103852230A CN201310753727.2A CN201310753727A CN103852230A CN 103852230 A CN103852230 A CN 103852230A CN 201310753727 A CN201310753727 A CN 201310753727A CN 103852230 A CN103852230 A CN 103852230A
- Authority
- CN
- China
- Prior art keywords
- vibration
- small parts
- spring
- seat
- testing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a vibration test device for small parts of an automobile. According to the vibration test device for the small parts of the automobile, the structure is simple, the test process can be kept stable, integrity and trueness in the detection simulation process are high, and the obtained test result is more scientific. The vibration test device for the small parts of the automobile comprises a body, wherein two opposite fixed plates are arranged on the body, a clamping fixing base is arranged on the top of the body, each fixed plate is connected with the outer side face of the clamping fixing base through a transverse spring, a vibration-starting and speed-regulating motor is arranged on the body, a plurality of vertical springs are arranged on the lower portion of the body, at least one vertical spring is provided with a vertical vibration sensor, and at least one transverse spring is provided with a main vibration sensor. The vibration test device for the small parts of the automobile has the advantages that the structure is simple, the total weight is light, resonance in the frequency band is low, influence is low, comprehensiveness and integrity are high when detection is carried out, the simulation degree is high, and the obtained test result is more accurate and more scientific.
Description
Technical field
The invention belongs to Automobile Parts Inspection field, relate in particular to a kind of automotive small parts vibration testing device.
Background technology
Can the amount of parts on automobile be very big, wherein has the parts of many keys, normally use great impact to automobile.These parts, need to be by multiple detection, wherein has one to be vibration test.Vibration test, is the various vibration environments that simulated automotive parts meet with in the stages such as assembling, use, and identifies whether it can bear the vibration pressure in working environment.The object of vibration test is to determine that can auto parts and components designed, that manufacture bear vibration that external vibration or self produce and unlikely destruction in transportation and use procedure, and maintains normal performance, reaches predetermined age.And the parts of key on these automobiles, volume generally can be very not large, so quality is also limited, and all kinds of common vibration table using in factory, easily because sole mass causes greatly occurring more resonance in test in frequency range, thereby affect parts quality or testing result.Current auto parts and components vibration rig, by simulating actual each oscillation intensity value, on fixture, cause after the vibration that reaches each detected intensity value, fixture is driving parts to vibrate together, after the vibration under all detected intensity completes, carry out again the detection of parts performance and function, whether test parts still can normally work after vibration, although such checkout equipment has certain analog capability and detectability, but main or analog vibration intensity, the shortcoming to some extent still at aspects such as the validity of simulation, comprehensive, globalities.
China Patent Publication No. CN203024951U, open day on June 26th, 2016, the name of utility model is called a kind of vibration table, this application case discloses a kind of vibration table, comprise frame, shaking platform and the supporting cell guide assembly being all connected with described frame and described shaking platform, also comprise the auxiliary guide pillar being connected with described shaking platform and be arranged at the auxiliary guide pin bushing in described frame, described auxiliary guide column sleeve is located in described auxiliary guide pin bushing.This utility model weak point is, if adopt the test unit of such device as the vibration of automotive small parts, in test process easily because sole mass causes greatly occurring more resonance in test in frequency range, thereby affect parts quality or testing result, and still have deficiency at aspects such as comprehensive, the globalities of test simulation.
Summary of the invention
The present invention easily causes the simulation degree of more resonance and test, the deficiency that globality is short of to some extent in order to overcome automotive small parts vibration testing device in prior art, provide a kind of simple in structure, can maintain process of the test stable, the globality that detects when simulation is strong, validity is high, and the test findings obtaining is the test unit of science more.
To achieve these goals, the present invention is by the following technical solutions:
A kind of automotive small parts vibration testing device, comprise body, described body is provided with two relative fixed heads, described body top is provided with one and grips seat, each fixed head all connects by a cross spring lateral surface that grips seat, and described body is provided with a starting of oscillation buncher, and described body below is provided with some perpendicular springs, at least one perpendicular spring is provided with vertical vibrating sensor, and at least one cross spring is provided with principal oscillation sensor.One-piece construction of the present invention only has several parts, very simple, and quality is also lighter, and the vibration of spring-like parts is to change always in addition, so there will not be the situation that maintains for a long time resonance band.In detected part reality, be that part is connected on vehicle body, be subject to because falling after automobile front driving, suddenly getting impatient and stop caused transverse vibration, and the caused vertical vibrating of road bump, also have the unordered vibration of non-directional of self.When test, part to be detected is fixed on to grip seat upper, starts buncher, drive body vibration, then by cross spring, grip seat, detected part produces vibration.Cross spring is not limit the direction of vibration that grips seat, except concentrating on spring length direction, and outside the vibration of left and right directions, can also be with the vibration of other certain directions.And the vibration of these other directions has a comparatively directly supply source, be exactly perpendicular spring, so, just simulate comparatively comprehensively vibration mode, unordered, the non-directional skew vibration of cross spring self in cooperation, degree of verisimilitude is very high.Oscillation intensity can obtain by vertical vibrating sensor, principal oscillation sensor, and the adjusting of oscillation intensity can realize by the rotating speed that changes starting of oscillation buncher.When detection, first set multiple detected values, allow oscillation intensity maintain a period of time under each detected value, realize the complete detection test to detected part.Detection test of the present invention, be no longer the conventional vibration test mode of pass through to simulate close oscillation intensity, but having simulated in each concrete direction in oscillation intensity, also simulated practical effect, therefore testing result accuracy is higher, has more science.
As preferably, described body lower end is provided with some reference columns, a corresponding perpendicular spring of reference column, described perpendicular spring housing is located at outside reference column, described reference column number is four, and four reference columns are distributed on body below, and described reference column top is a stretch section.The effect of perpendicular spring on reference column, mainly be to provide the vibration of vertical direction, the existence of reference column, the over-deflection of the perpendicular spring of restriction, make the vibration on perpendicular spring mainly concentrate on vertical direction, the degree of verisimilitude of the impact that the vertical vibrating causing while improving automobile bumpiness in reality causes parts.Reference column top is stretch section, reduces body vertical vibrating and strikes the caused impact of reference column when larger, avoids that moment impact is excessive causes negative effect to process of the test.
As preferably, also comprise at least one vibrating air cylinder, described body side extends downwards with body is common and forms an outer frame, and described outer frame will erect in spring is coated on, and the piston rod of described vibrating air cylinder connects the lateral surface of outer frame and vertical with cross spring.In practice, automobile emergency turns to, turns to emergency brake, and the factor of Uneven road while turning to all can cause the another kind of transverse vibration of parts, and direction of vibration is vertical with aforesaid transverse vibration understands near normal.Vibrating air cylinder can, by regulating stretching frequency, drive whole body to move back and forth, thereby simulate above-mentioned actual vibration state.Further comprehensive degree of raising simulation and comprehensive, makes to detect test findings more accurate.And, it is generally less and frequency is more relatively stable that what automobile zero small parts was subject in practice upload at car sound two side directions the vibration coming, Telescopic-cylinder just has this stability, and the vibrating effect of spring is limited after all, in the situation that having used cross spring, perpendicular spring, then coordinate other springs to enter, effect is not only not obvious, also can cause vibration too disorderly, not conform to the actual conditions, therefore select more scientific and effective of vibrating air cylinder.
As preferably, described body is provided with some link slots side by side, described link slot comprises connecting portion, described starting of oscillation buncher is connected on body on the connecting portion in a link slot by kelly frame, spacing between adjacent link slot is identical, the bottom land degree of depth of all link slots increases progressively successively, has at least two connecting portions that the degree of depth is different in each link slot.Starting of oscillation buncher is vibration source, and the difference of its position all can have conclusive impact for distribution, the conduction of vibration, and in reality, the situation that vibration source intensity is identical is perhaps more, but vibration source position, situation that conductive form is close are little.The different connecting portion of the degree of depth in different link slot and link slot in the present invention, provide starting of oscillation buncher different link positions, thereby can the different vibration source form in the multiple position of simulation place, can under various forms, carry out determining the vibration test of intensity, draw comprehensive and accurate test figure or result, there is high realistic simulation effect.
As preferably, a described inner bottom surface that grips is provided with fixed pin, and the described seat that grips is provided with fixing auxiliary seat, and described fixing auxiliary is connected to and is gripped in seat by connecting pin.Various part shapes to be detected are different, are fixed up also different, if desired, can increase that various shapes and part to be detected match or the fixing auxiliary seat of suitable clamping part to be detected, improve clamping effect, ensure carrying out smoothly of detecting.
The invention has the beneficial effects as follows: total quality simple in structure is light, frequency range internal resonance is few, affects littlely, and comprehensive when detection, comprehensive good, degree of verisimilitude is high, more accurate science of the test findings obtaining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of body outer frame of the present invention inside;
Fig. 3 is the structural representation at link slot of the present invention place.
In figure: body 1, fixed head 2, grip seat 3, cross spring 4, starting of oscillation buncher 5, principal oscillation sensor 6, reference column 7, vibrating air cylinder 8, perpendicular spring 9, link slot 10, kelly frame 11, fixing auxiliary seat 12.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
A kind of automotive small parts vibration testing device as shown in Figure 1, Figure 2, Figure 3 shows, comprise body 1, described body 1 is provided with two relative fixed heads 2, described body 1 top is provided with one and grips seat 3, each fixed head 2 all connects by a cross spring 4 lateral surface that grips seat 3, described body 1 is provided with a starting of oscillation buncher 5, described body 1 below is provided with some perpendicular springs 9, at least one perpendicular spring 9 is provided with vertical vibrating sensor, and at least one cross spring 4 is provided with principal oscillation sensor 6.One-piece construction of the present invention only has several parts, comparatively simple, and quality is also lighter, and the vibration of spring-like parts is to change always in addition, so there will not be the situation that maintains for a long time resonance band.In detected part reality, be that part is connected on vehicle body, be subject to because falling after automobile front driving, suddenly getting impatient and stop caused transverse vibration, and the caused vertical vibrating of road bump, also have the unordered vibration of non-directional of self.When test, part to be detected is fixed on and is gripped on seat 3, start buncher, drive body 1 to vibrate, then by cross spring 4, grip seat 3, detected part produces vibration.Cross spring 4 is not limit to grip seat 3 direction of vibration, except concentrating on spring length direction, and outside the vibration of left and right directions, can also be with the vibration of other certain directions.And the vibration of these other directions has a comparatively directly supply source, be exactly perpendicular spring 9, so, just simulate comparatively comprehensively vibration mode, cooperations in, unordered, the non-directional of cross spring 4 self are offset and vibrate, and degree of verisimilitude is very high.Oscillation intensity can obtain by vertical vibrating sensor, principal oscillation sensor 6, and the adjusting of oscillation intensity can realize by the rotating speed that changes starting of oscillation buncher 5.When detection, first set multiple detected values, allow oscillation intensity maintain a period of time under each detected value, realize the complete detection test to detected part.Detection test of the present invention, be no longer the conventional vibration test mode of pass through to simulate close oscillation intensity, but having simulated in each concrete direction in oscillation intensity, also simulated practical effect, therefore testing result accuracy is higher, has more science.Described body 1 lower end is provided with some reference columns 7, a corresponding perpendicular spring 9 of reference column 7, described perpendicular spring 9 is set in outside reference column 7, and described reference column 7 numbers are four, four reference columns 7 are distributed on body 1 below, and described reference column 7 tops are a stretch section.The effect of perpendicular spring 9 on reference column 7, mainly be to provide the vibration of vertical direction, the existence of reference column 7, the over-deflection of the perpendicular spring 9 of restriction, make the vibration on perpendicular spring 9 mainly concentrate on vertical direction, the degree of verisimilitude of the impact that the vertical vibrating causing while improving automobile bumpiness in reality causes parts.Reference column 7 tops are stretch section, reduce body 1 vertical vibrating and strike the caused impact of reference column 7 when larger, avoid that moment impact is excessive causes negative effect to process of the test.Also comprise at least one vibrating air cylinder 8, described body 1 side forms an outer frame to downward-extension and body 1 is common, and described outer frame will erect in spring 9 is coated on, and the piston rod of described vibrating air cylinder 8 connects the lateral surface of outer frame and vertical with cross spring 4.In practice, automobile emergency turns to, turns to emergency brake, and the factor of Uneven road while turning to all can cause the another kind of transverse vibration of parts, and direction of vibration is vertical with aforesaid transverse vibration understands near normal.Vibrating air cylinder 8 can, by regulating stretching frequency, drive whole body 1 to move back and forth, thereby simulate above-mentioned actual vibration state.Further comprehensive degree of raising simulation and comprehensive, makes to detect test findings more accurate.Described body 1 is provided with some link slots 10 side by side, described link slot 10 comprises connecting portion, described starting of oscillation buncher 5 is connected on body 1 on the connecting portion in a link slot 10 by kelly frame 11, spacing between adjacent link slot 10 is identical, the bottom land degree of depth of all link slots 10 increases progressively successively, has at least two connecting portions that the degree of depth is different in each link slot 10.Starting of oscillation buncher 5 is vibration sources, and the difference of its position all can have conclusive impact for distribution, the conduction of vibration, and in reality, the situation that vibration source intensity is identical is perhaps more, but vibration source position, situation that conductive form is close are little.Different link slot 10 and the different connecting portion of the interior degree of depth of link slot 10 in the present invention, provide starting of oscillation buncher 5 different link positions, can the different vibration source form in the multiple position of simulation place, and the vibration sources of different conduction distances while being in close vibration source position, thereby can under various forms, carry out determining the vibration test of intensity, draw comprehensive and accurate test figure or result, there is high realistic simulation effect.Described seat 3 inner bottom surfaces that grip are provided with fixed pin, and the described seat 3 that grips is provided with fixing auxiliary seat 12, and described fixing auxiliary seat 12 is connected to and is gripped in seat 3 by connecting pin.Various part shapes to be detected are different, are fixed up also different, if desired, can increase that various shapes and part to be detected match or the fixing auxiliary seat 12 of suitable clamping part to be detected, improve clamping effect, ensure carrying out smoothly of detecting.
Claims (7)
1. an automotive small parts vibration testing device, it is characterized in that, comprise body (1), described body (1) is provided with relative two fixed heads (2), described body (1) top is provided with one and grips seat (3), each fixed head (2) all connects by a cross spring (4) lateral surface that grips seat (3), described body (1) is provided with a starting of oscillation buncher (5), described body (1) below is provided with some perpendicular springs (9), at least one perpendicular spring (9) is provided with vertical vibrating sensor, at least one cross spring (4) is provided with principal oscillation sensor (6).
2. a kind of automotive small parts vibration testing device according to claim 1, it is characterized in that, described body (1) lower end is provided with some reference columns (7), the corresponding perpendicular spring of a reference column (7) (9), described perpendicular spring (9) is set in outside reference column (7).
3. a kind of automotive small parts vibration testing device according to claim 1, it is characterized in that, also comprise at least one vibrating air cylinder (8), described body (1) side forms an outer frame jointly to downward-extension and body (1), described outer frame will erect in spring (9) is coated on, and the piston rod of described vibrating air cylinder (8) connects the lateral surface of outer frame and vertical with cross spring (4).
4. according to a kind of automotive small parts vibration testing device described in claim 1 or 2 or 3, it is characterized in that, described body (1) is provided with some link slots (10) side by side, described link slot (10) comprises connecting portion, described starting of oscillation buncher (5) is connected on the connecting portion in the upper link slot of body (1) (10) by kelly frame (11), and the spacing between adjacent link slot (10) is identical.
5. a kind of automotive small parts vibration testing device according to claim 4, is characterized in that, the bottom land degree of depth of link slot (10) increases progressively successively, has at least two connecting portions that the degree of depth is different in each link slot (10).
6. according to a kind of automotive small parts vibration testing device described in claim 1 or 2 or 3, it is characterized in that, described seat (3) inner bottom surface that grips is provided with fixed pin, the described seat (3) that grips is provided with fixing auxiliary seat (12), and described fixing auxiliary seat (12) is connected to and is gripped in seat (3) by connecting pin.
7. a kind of automotive small parts vibration testing device according to claim 2, it is characterized in that, described reference column (7) number is four, four reference columns (7) are distributed on body (1) below, and described reference column (7) top is a stretch section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753727.2A CN103852230B (en) | 2013-12-31 | 2013-12-31 | A kind of automotive small parts vibration testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753727.2A CN103852230B (en) | 2013-12-31 | 2013-12-31 | A kind of automotive small parts vibration testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103852230A true CN103852230A (en) | 2014-06-11 |
| CN103852230B CN103852230B (en) | 2016-04-27 |
Family
ID=50860149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310753727.2A Expired - Fee Related CN103852230B (en) | 2013-12-31 | 2013-12-31 | A kind of automotive small parts vibration testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103852230B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034502A (en) * | 2014-06-24 | 2014-09-10 | 同济大学 | Frequency-variable multilevel vibrating load test device |
| CN105794400A (en) * | 2016-05-12 | 2016-07-27 | 广西科技大学 | Conveying rack vibration excitation device |
| CN106353678A (en) * | 2016-08-31 | 2017-01-25 | 杭州威衡科技有限公司 | Motor quality control data monitoring system |
| CN106768762A (en) * | 2017-01-06 | 2017-05-31 | 成都聚立汇信科技有限公司 | LED lamp is shatter-proof experimental rig |
| CN107472519A (en) * | 2017-06-26 | 2017-12-15 | 南京航空航天大学 | A kind of device for coaxial double-rotor helicopter ground resonance test |
| CN108775997A (en) * | 2018-08-13 | 2018-11-09 | 江西理工大学 | A kind of civil engineering structure seismic testing device |
| CN108918135A (en) * | 2018-09-26 | 2018-11-30 | 烟台环球机床装备股份有限公司 | A kind of numerical control rotating platform reliability test verifying bench and test verification method |
| CN112233492A (en) * | 2020-11-20 | 2021-01-15 | 天津市职业大学 | Simulation motion platform for simulating ambulance |
| CN114623993A (en) * | 2021-11-14 | 2022-06-14 | 盐城工学院 | Automobile parts vibration detects uses noise insulation mechanism |
| CN118130026A (en) * | 2024-04-30 | 2024-06-04 | 太原科技大学 | Vibration resistance performance test device for aero-engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1746402A2 (en) * | 2005-07-23 | 2007-01-24 | MB-technology GmbH | Simulation tester and method for testing motor vehicle components |
| CN201707191U (en) * | 2010-06-29 | 2011-01-12 | 无锡隆盛科技有限公司 | Three-dimensional vibration and impact test bench |
| CN102141461A (en) * | 2010-12-30 | 2011-08-03 | 中国科学院长春光学精密机械与物理研究所 | Vibration detection platform |
| CN202305158U (en) * | 2011-09-21 | 2012-07-04 | 宝鸡市天瑞汽车内饰件有限公司 | Automobile ashtray test device |
| JP2012233839A (en) * | 2011-05-09 | 2012-11-29 | Railway Technical Research Institute | Simulative vibration experiment device for a magnetic levitation railway vehicle using air spring |
-
2013
- 2013-12-31 CN CN201310753727.2A patent/CN103852230B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1746402A2 (en) * | 2005-07-23 | 2007-01-24 | MB-technology GmbH | Simulation tester and method for testing motor vehicle components |
| CN201707191U (en) * | 2010-06-29 | 2011-01-12 | 无锡隆盛科技有限公司 | Three-dimensional vibration and impact test bench |
| CN102141461A (en) * | 2010-12-30 | 2011-08-03 | 中国科学院长春光学精密机械与物理研究所 | Vibration detection platform |
| JP2012233839A (en) * | 2011-05-09 | 2012-11-29 | Railway Technical Research Institute | Simulative vibration experiment device for a magnetic levitation railway vehicle using air spring |
| CN202305158U (en) * | 2011-09-21 | 2012-07-04 | 宝鸡市天瑞汽车内饰件有限公司 | Automobile ashtray test device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034502A (en) * | 2014-06-24 | 2014-09-10 | 同济大学 | Frequency-variable multilevel vibrating load test device |
| CN105794400A (en) * | 2016-05-12 | 2016-07-27 | 广西科技大学 | Conveying rack vibration excitation device |
| CN105794400B (en) * | 2016-05-12 | 2018-06-08 | 广西科技大学 | Conveying platform frame exciting device |
| CN106353678A (en) * | 2016-08-31 | 2017-01-25 | 杭州威衡科技有限公司 | Motor quality control data monitoring system |
| CN106768762A (en) * | 2017-01-06 | 2017-05-31 | 成都聚立汇信科技有限公司 | LED lamp is shatter-proof experimental rig |
| CN107472519A (en) * | 2017-06-26 | 2017-12-15 | 南京航空航天大学 | A kind of device for coaxial double-rotor helicopter ground resonance test |
| CN107472519B (en) * | 2017-06-26 | 2019-12-20 | 南京航空航天大学 | Device for ground resonance test of coaxial dual-rotor helicopter |
| CN108775997A (en) * | 2018-08-13 | 2018-11-09 | 江西理工大学 | A kind of civil engineering structure seismic testing device |
| CN108918135A (en) * | 2018-09-26 | 2018-11-30 | 烟台环球机床装备股份有限公司 | A kind of numerical control rotating platform reliability test verifying bench and test verification method |
| CN112233492A (en) * | 2020-11-20 | 2021-01-15 | 天津市职业大学 | Simulation motion platform for simulating ambulance |
| CN114623993A (en) * | 2021-11-14 | 2022-06-14 | 盐城工学院 | Automobile parts vibration detects uses noise insulation mechanism |
| CN118130026A (en) * | 2024-04-30 | 2024-06-04 | 太原科技大学 | Vibration resistance performance test device for aero-engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103852230B (en) | 2016-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103852230A (en) | Vibration test device for small parts of automobile | |
| CN103808499B (en) | A kind of vibration isolator dynamic stiffness method of testing and device thereof | |
| CN103310047B (en) | Towards the optimization method of McPherson suspension vibration damper side force | |
| CN103604578B (en) | Large-scale high-magnitude horizontal impact test stand based on pneumatic type | |
| CN104535335A (en) | Multi-axial loading axle assembly endurance test bed | |
| CN104198197A (en) | Method and device for testing dynamic stiffness of car-body mounting points | |
| CN204359539U (en) | A kind of Multi-axial Loading axle assembly long duration test stand | |
| CN1955750A (en) | Modal checking method and system of vacuum electronic device | |
| CN203798570U (en) | A quick accurate centering device of engine for bench test | |
| CN202896882U (en) | Shockproof structure of aircraft onboard equipment | |
| CN106500940A (en) | Six-degree of freedom vibration acceleration measurement device | |
| CN207066754U (en) | A kind of steering NVH analysis stands for simulating whole vehicle state | |
| CN103913315B (en) | Automobile suspension system performance testing device, method of testing and optimization method | |
| CN203811341U (en) | Railway point switch vibration transfer path analysis experiment testing apparatus | |
| CN103434656B (en) | Rigidity simulator with variable rigidity | |
| CN104330269B (en) | Method for testing damping ratio of tyre-rim combination body | |
| CN108387350A (en) | Vehicle body attachment point dynamic stiffness test method, device and storage medium | |
| CN206648802U (en) | A kind of pitching dynamic derivative experimental provision of tail vibration | |
| JP2017096874A (en) | Vehicle body floating device, and vehicle body rigidity testing device equipped with the same | |
| CN105466697A (en) | Testing apparatus of steering system | |
| CN207300597U (en) | The chassis simulator of tire test | |
| CN209416638U (en) | A kind of automobile exhaust pipe multidimensional mechanical test system | |
| CN108692632A (en) | A kind of production equipment and its application method of fender production detection for electric vehicle | |
| CN210893601U (en) | Automobile part vibration testing device | |
| CN102879205B (en) | The adjustable bench test device of rigidity and stiffness tuning method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20171231 |