CN204043931U - The fatigue test system of the interconnected suspension system of vehicle hydraulic - Google Patents

The fatigue test system of the interconnected suspension system of vehicle hydraulic Download PDF

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Publication number
CN204043931U
CN204043931U CN201420449380.2U CN201420449380U CN204043931U CN 204043931 U CN204043931 U CN 204043931U CN 201420449380 U CN201420449380 U CN 201420449380U CN 204043931 U CN204043931 U CN 204043931U
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China
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suspension system
hydraulic
hydraulic cylinder
fatigue test
vehicle
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CN201420449380.2U
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张农
郑敏毅
王立夫
倪杰
张海进
彭鹏
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Changzhou Wan'an Automobile Parts Technology Co Ltd
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Changzhou Wan'an Automobile Parts Technology Co Ltd
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Abstract

The utility model relates to automotive performance technical field of measurement and test, particularly relates to the fatigue test system of the interconnected suspension system of a kind of vehicle hydraulic, comprising: for arranging the base of each hydraulic cylinder of the interconnected suspension system of vehicle hydraulic; For driving the driving mechanism of the compression of each hydraulic cylinder synchronous or synchro-draw; And control the controller of driving mechanism operation.The fatigue test system of the interconnected suspension system of vehicle hydraulic of the present utility model, all hydraulic cylinder synchronous compression or the synchro-draw of Hydraulic interconnection suspension system is driven by driving mechanism, whole Hydraulic interconnection suspension system is integrally carried out testing fatigue, compared to the fatigue test device of prior art, the test result of this test macro is more genuine and believable, reliable, truly can reflect the performance of the interconnected suspension system of vehicle hydraulic, be conducive to the quality and safety improving the interconnected suspension system of detected vehicle hydraulic.

Description

The fatigue test system of the interconnected suspension system of vehicle hydraulic
Technical field
The utility model relates to automotive performance technical field of measurement and test, particularly relates to the fatigue test system of the interconnected suspension system of a kind of vehicle hydraulic.
Background technology
Hydraulic interconnection suspension system, as a set of novel vehicle suspension system, has the function that conventional suspension systems is incomparable, has wide market outlook.Hydraulic interconnection suspension system needs to go into operation, and has to pass through long test, to detect its quality and safety.If above-mentioned Hydraulic interconnection suspension system be arranged on real vehicle and carry out testing fatigue, financial cost will be very high, in addition when being arranged on the Hydraulic interconnection suspension system on real vehicle and being damaged, can cause danger.Therefore, need a set of fatigue test system badly and indoor testing fatigue is carried out to Hydraulic interconnection suspension system.
4 independently stretching devices are comprised for the fatigue test device of vehicle hydraulic suspension system in prior art, 4 hydraulic cylinders of these 4 independently stretching device respectively one_to_one corresponding vehicle hydraulic suspension systems, i.e. left side front-wheel hydraulic cylinder, right side front wheel hydraulic cylinder, left side rear wheel hydraulic cylinder and right side rear wheel hydraulic cylinder, the principle of work of the fatigue test device of this vehicle hydraulic suspension system is: each stretching device stretches when certain frequency (or variable frequency) repeatedly to hydraulic cylinder corresponding thereto respectively, to test separately each hydraulic cylinder, thus check the durability of each hydraulic cylinder independently.
The defect of the fatigue test device of vehicle hydraulic suspension system of the prior art is: this fatigue test device is independently tested each hydraulic cylinder in vehicle hydraulic suspension system, although can the durability of test liquid cylinder pressure, there is certain reference role to the permanance passing judgment on hydraulic suspension system, but real simulation test comprehensively can not be carried out to its entirety; In addition, because Hydraulic interconnection suspension system is a set of by hydraulic cylinder, oil pipe, accumulator, the a set of unified entirety of the composition such as all kinds of joints, affect the factor every aspect of its permanance, it is not rigorous for independently carrying out testing fatigue to single part, so fatigue test device of the prior art is not suitable for the fatigability test of this Hydraulic interconnection suspension system.
Utility model content
The purpose of this utility model is the fatigue test system providing the interconnected suspension system of a kind of vehicle hydraulic, and interconnected for vehicle hydraulic suspension system integrally can be carried out fatigability test, test result is more reliable.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A fatigue test system for the interconnected suspension system of vehicle hydraulic, comprising:
For arranging the base of each hydraulic cylinder of the interconnected suspension system of described vehicle hydraulic;
For driving the compression of each hydraulic cylinder synchronous or the driving mechanism of synchro-draw of the interconnected suspension system of described vehicle hydraulic; And
Control the controller that described driving mechanism runs.
Compared with prior art, the utility model has the advantage of: the fatigue test system of the interconnected suspension system of the vehicle hydraulic that the present embodiment provides, all hydraulic cylinder synchronous compression or the synchro-draw of Hydraulic interconnection suspension system is driven by driving mechanism, whole Hydraulic interconnection suspension system is integrally carried out testing fatigue, successively testing fatigue is carried out to each hydraulic cylinder in suspension system separately compared in prior art, the test result of this test macro is more genuine and believable, reliably, truly can reflect the performance of the interconnected suspension system of vehicle hydraulic, be conducive to the quality and safety improving the interconnected suspension system of detected vehicle hydraulic.
In further technical scheme, described fatigue test system also comprise be arranged on described hydraulic cylinder below, for adjusting the height regulating mechanism of the height of described hydraulic cylinder.
Preferably, described height regulating mechanism is height adjusting cushion block.
Preferably, described driving mechanism comprises motor, reductor, gear train and web member; Wherein:
Described motor is controlled by described controller, and described motor is sequentially connected described web member by described reductor with described gear train, and drives described web member back and forth to move up and down;
The first end of each hydraulic cylinder of the interconnected suspension system of described vehicle hydraulic is separately positioned on described base, second end of each hydraulic cylinder is separately positioned on described web member, described first end and described second end are respectively the end of the cylinder body of described hydraulic cylinder and the end of piston rod, or described first end and described second end are respectively the end of the piston rod of described hydraulic cylinder and the end of cylinder body.
Preferably, described gear train is toggle.
Preferably, the first end of described hydraulic cylinder is connected by the first sliding connector and described base sliding; Second end of described hydraulic cylinder is by the second sliding connector and described web member sliding connection.
Preferably, described first sliding connector comprises and is packed in the first slide rail on described height regulating mechanism and the first slide block with described first slide rail sliding connection, and the first end of described hydraulic cylinder is fixedly connected with described first slide block; Described second sliding connector comprises and is packed in the second slide rail on described web member and the second slide block with described second slide rail sliding connection, and the second end of described hydraulic cylinder is fixedly connected with described second slide block.
Preferably, described first sliding connector also comprises the first position limiting structure for limiting described first skid, and for limiting the second position limiting structure of described second skid.
Preferably, described web member is fixedly connected with described base by support column, and described support column and described base junction are provided with reinforcement.
Preferably, described controller is frequency converter.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the fatigue test system of the interconnected suspension system of vehicle hydraulic that Fig. 1 provides for the utility model embodiment.
Embodiment
Carry out clear, complete description below with reference to the technical scheme of accompanying drawing to each embodiment of the utility model, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the utility model is protected.
Embodiment 1
For the fatigue test device solving vehicle hydraulic suspension system of the prior art only can carry out fatigability test to each hydraulic cylinder in hydraulic suspension system independently, and whole hydraulic suspension system integrally can not be carried out integrated testability, the testing fatigue of the interconnected suspension system of novel vehicle hydraulic can not be adapted to, the utility model embodiment provides a kind of fatigue test system being adapted to the interconnected suspension system of vehicle hydraulic, compared to fatigue test device of the prior art, the test result of this fatigue test system is more reliable.
As shown in Figure 1, be the structural representation of the fatigue test system of the interconnected suspension system of vehicle hydraulic that the utility model embodiment provides, this fatigue test system comprises base 10, driving mechanism and controller 1.
Particularly, in general, for common four-wheeled vehicle, described Hydraulic interconnection suspension system comprises 4 hydraulic cylinders 8 and connects the oil pipe, accumulator, valve, joint etc. of these 4 hydraulic cylinders 8, above-mentioned 4 hydraulic cylinders 8 are respectively left side front-wheel hydraulic cylinder, right side front wheel hydraulic cylinder, left side rear wheel hydraulic cylinder and right side rear wheel hydraulic cylinder, wherein, the piston rod of left side front-wheel hydraulic cylinder is connected with left front wheel assembly, and the cylinder body of left side front-wheel hydraulic cylinder is connected with vehicle body; The piston rod of right side front wheel hydraulic cylinder is connected with right side front vehicle wheel assembly, and the cylinder body of right side front wheel hydraulic cylinder is connected with vehicle body; The piston rod of left side rear wheel hydraulic cylinder is connected with left rear frame wheel assembly, and the cylinder body of left side rear wheel hydraulic cylinder is connected with vehicle body; The piston rod of right side rear wheel hydraulic cylinder is connected with right side rear wheel assembly, and the cylinder body of right side rear wheel hydraulic cylinder is connected with vehicle body.
The utility model embodiment all using the Hydraulic interconnection suspension system of common four-wheeled vehicle as tested object, 4 hydraulic cylinders 8 of the interconnected suspension system of vehicle hydraulic are all arranged on described base 10, described driving mechanism is for driving 4 hydraulic cylinder 8 synchronous compressions or the synchro-draw of the interconnected suspension system of vehicle hydraulic, described driving mechanism makes the piston rod of 4 hydraulic cylinders 8 synchronously do alternating translational movement, in the present embodiment, for back and forth moving up and down.The operation of this driving mechanism is controlled by controller 1.
The fatigue test system of the interconnected suspension system of the vehicle hydraulic that the present embodiment provides, all hydraulic cylinder 8 synchronous compression or the synchro-draw of Hydraulic interconnection suspension system is driven by driving mechanism, whole Hydraulic interconnection suspension system is integrally carried out testing fatigue, successively testing fatigue is carried out to each hydraulic cylinder 8 in suspension system separately compared in prior art, the test result of this test macro is more genuine and believable, reliably, truly can reflect the performance of the interconnected suspension system of vehicle hydraulic, be conducive to the quality and safety improving the interconnected suspension system of detected vehicle hydraulic.In order to embody this other feature, below by the examples below to being further described in embodiment 1.
Embodiment 2
In order to the true ruuning situation of further simulating vehicle, the present embodiment is the upper function of regulating height thereof increasing hydraulic cylinder 8 in basis in embodiment 1, concrete structure is as follows: referring again to Fig. 1, described fatigue test system also comprise be arranged on described hydraulic cylinder 8 below, for adjusting the height regulating mechanism 7 of the height of described hydraulic cylinder 8, by height regulating mechanism 7, adjust the height of the hydraulic cylinder 8 corresponding with this height regulating mechanism 7.In order to the structure of whole test macro is simple, above-mentioned height regulating mechanism 7 can be chosen as the height adjusting cushion block be removably disposed on described base 10 simply, this height regulating mechanism 7 can be replaced with other mechanism that can adjust the height of hydraulic cylinder 8 by certain those skilled in the art, such as adjustment hydraulic cylinder can be set in the below of hydraulic cylinder 8, the height of this hydraulic cylinder 8 can be adjusted by the extension elongation of the piston rod controlling adjustment hydraulic cylinder.
In the present embodiment, before testing fatigue, by regulating 4 each self-corresponding height regulating mechanisms 7 of hydraulic cylinder 8 in the interconnected suspension system of vehicle hydraulic, carry out the mode of motion such as the level of simulating vehicle, inclination, pitching, here, during simulating vehicle tangential movement mode, adjust 4 height regulating mechanisms 7 and make the setting height(from bottom) of 4 hydraulic cylinders 8 consistent; During simulating vehicle left side wheels roll motion mode, adjust the setting height(from bottom) of setting height(from bottom) lower than right side front wheel hydraulic cylinder and right side rear wheel hydraulic cylinder that 4 height regulating mechanisms 7 make left side front-wheel hydraulic cylinder and left side rear wheel hydraulic cylinder; Simulating vehicle front-wheel steeve mode of motion time, adjust the setting height(from bottom) of setting height(from bottom) higher than left side rear wheel hydraulic cylinder and right side rear wheel hydraulic cylinder that 4 height regulating mechanisms 7 make left side front-wheel hydraulic cylinder and right side front wheel hydraulic cylinder, the adjustment mode simulating each height regulating mechanism 7 during other vehicle operating mode by that analogy, no longer repeats in this article.After the height control utilizing above-mentioned height regulating mechanism 7 to be taken turns by each hydraulic pressure is good, carry out testing fatigue again, the situation of testing fatigue can be carried out by real simulation further on real vehicle, further increase the reliability of testing fatigue result, truly can reflect the performance of the interconnected suspension system of vehicle hydraulic further, be conducive to the quality and safety improving the detected interconnected suspension system of vehicle hydraulic further.
Embodiment 3
Present embodiments provide a kind of preferred structure of driving mechanism involved in embodiment 1, same with reference to Fig. 1, described driving mechanism comprises motor 2, reductor 3, gear train and web member 5.
Particularly, motor 2 is controlled by described controller 1, here, when carrying out testing fatigue, controller 1 can control motor 2 and run with constant frequency, also can control motor 2 to run with the frequency of change, here, described controller 1 can be preferably frequency converter, due to (can central processing unit be elected as by controller 1, single-chip microcomputer, programmable logic controller (PLC), flush bonding processor etc.) or Frequency Converter Control motor 2 operate to those skilled in the art routine adopt technological means, so no longer carry out expansion explanation to this partial content in present specification.Motor 2 is sequentially connected described web member 5 by reductor 3 with gear train, and is with follower link 5 alternating translational movement (in the present embodiment for band follower link 5 back and forth moves up and down).
The first end of 4 hydraulic cylinders 8 of the interconnected suspension system of vehicle hydraulic is separately positioned on base 10, second end of each hydraulic cylinder 8 is separately positioned on web member 5, described first end and described second end are respectively the end of the cylinder body of hydraulic cylinder 8 and the end of piston rod, or first end and described second end are respectively the end of piston rod and the end of cylinder body of described hydraulic cylinder 8.In the present embodiment, the first end that all hydraulic cylinder 8 connects base 10 is the free end (free end refers to one end that piston rod extend out to the cylinder body outside of hydraulic cylinder 8) of the piston rod of this hydraulic cylinder 8, and the second end that all hydraulic cylinder 8 connects described web member 5 is the end of the cylinder body of this hydraulic cylinder 8.Here, what deserves to be explained is, when specifically connecting, 4 hydraulic cylinders 8 towards can be different, namely piston rod that is some or certain several hydraulic cylinder 8 connects base 10, the piston rod of other hydraulic cylinder 8 connects described web member 5, as long as make in test process, hydraulic cylinder 8 can be compressed or be stretched.
Further, described gear train is preferably toggle 9, and one end of toggle 9 connects the output shaft of reductor 3, and the other end connects the driving shaft 4 be arranged on web member 5, by controlling the rotation of motor 2, band follower link 5 constantly reciprocally moves up and down.
Further, in order to reduce the installation site of Hydraulic interconnection suspension system on real vehicle further, at 4 hydraulic cylinders 8 of the interconnected suspension system of described vehicle hydraulic for be arranged on base 10 or on height regulating mechanism 7 movably.In the present embodiment, referring again to Fig. 1, the first end of described hydraulic cylinder 8 is by the first sliding connector 61 and the sliding connection of described base 10; Second end of described hydraulic cylinder 8 is by the second sliding connector 62 and the sliding connection of described web member 5.
Here, described first sliding connector 61 and the second sliding connector 62 can be chosen as any sliding connector 5 well known to those skilled in the art, in a preferred embodiment, described first sliding connector 61 preferably includes and is packed in the first slide rail on described height regulating mechanism 7 (being preferably typical T-shaped slide rail) and the first slide block with described first slide rail sliding connection, and the first end of described hydraulic cylinder 8 is fixedly connected with described first slide block; Described second sliding connector 62 preferably includes and is packed in the second slide rail on described web member 5 (being preferably typical T-shaped slide rail) and the second slide block with described second slide rail sliding connection, and the second end of described hydraulic cylinder 8 is fixedly connected with described second slide block.Like this, by described first sliding connector 61 and the second sliding connector 62, can the position of each hydraulic cylinder 8 of lateral adjustments, namely the spacing between left side front-wheel hydraulic cylinder and left side rear wheel hydraulic cylinder is regulated, regulate the spacing between right side front wheel hydraulic cylinder and right side rear wheel hydraulic cylinder, with the installation site on Reality simulation vehicle.Also comprising the adjustment of hydraulic cylinder 8 position makes the center line of hydraulic cylinder 8 be vertical, namely correspond to the first sliding connector 61 and the second sliding connector 62 of same hydraulic cylinder 8 by adjustment, make the cylinder body of this hydraulic cylinder 8 and piston rod on the pedal line of setting.
In addition, behind the position of adjusting each hydraulic cylinder 8, in order to ensure that, in follow-up test process, hydraulic cylinder 8 remains on this position, need to carry out spacing process to the first sliding connector 61 of each hydraulic cylinder 8 correspondence and the second sliding connector 62.Particularly, described first sliding connector 61 also comprises the first position limiting structure (attached not shown) for limiting described first skid, and the second position limiting structure (attached not shown) for limiting described second skid.Due to described first position limiting structure and the second position limiting structure be those skilled in the art routine adopt for limiting the technological means that slide block slides on slide rail, so no longer carry out expansion explanation herein.
Further, for increasing strength of joint and the connective stability of above-mentioned fatigue test system, adopt following structure: with reference to Fig. 1, described web member 5 is fixedly connected with described base 10 by support column 11, described support column 11 is provided with reinforcement 12 with described base 10 junction, is preferably triangle reinforcement 12.
The method of work of the fatigue test system of the interconnected suspension system of the vehicle hydraulic that the utility model embodiment provides is:
First, in Hydraulic interconnection suspension system 4 hydraulic cylinder 8 is fixedly mounted with on the first corresponding slide block and the second slide block, the setting height(from bottom) of each hydraulic cylinder 8 can be regulated by height adjustment mechanism, namely the stretch position of each hydraulic cylinder 8 is regulated, by the first sliding connector 61 and the second sliding connector 62 regulator solution cylinder pressure 8 spacing, with the installation site on Reality simulation vehicle.After having regulated height and hydraulic cylinder 8 spacing, by access hydraulic cylinders 8 such as oil pipe, accumulator, joints, be assembled into complete Hydraulic interconnection suspension system, and squeeze into hydraulic oil to the pressure required.
Then, start frequency converter, regulate the vibration frequency that frequency converter needs to experiment, Frequency Converter Control motor 2 operates, by reductor 3, and toggle 9, driving shaft 4, band follower link 5 does and back and forth moves up and down, i.e. the mode of motion such as inclination, pitching of simulating vehicle, Hydraulic interconnection suspension system works under the drive of fatigue test system.Can be regulated the vibration frequency of test macro in real time by frequency converter, fatigue test system works to the time required always, to check the permanance of Hydraulic interconnection suspension system, finally obtains reliable testing fatigue result.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims (10)

1. a fatigue test system for the interconnected suspension system of vehicle hydraulic, is characterized in that, comprising:
Base, its structure is suitable for the multiple hydraulic cylinders simultaneously arranging the interconnected suspension system of described vehicle hydraulic;
Driving mechanism, at least two hydraulic cylinder synchronous that its structure is suitable in described multiple hydraulic cylinder are compressed or synchro-draw; And
Controller, it is electrically connected the control end of described driving mechanism.
2. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 1, is characterized in that, described fatigue test system also comprise be arranged on described hydraulic cylinder below, for adjusting the height regulating mechanism of the height of described hydraulic cylinder.
3. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 2, it is characterized in that, described height regulating mechanism is height adjusting cushion block.
4. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 2, it is characterized in that, described driving mechanism comprises motor, reductor, gear train and web member; Wherein:
Described motor is controlled by described controller, and described motor is sequentially connected described web member by described reductor with described gear train, and drives described web member back and forth to move up and down;
The first end of each hydraulic cylinder of the interconnected suspension system of described vehicle hydraulic is separately positioned on described base, second end of each hydraulic cylinder is separately positioned on described web member, described first end and described second end are respectively the end of the cylinder body of described hydraulic cylinder and the end of piston rod, or described first end and described second end are respectively the end of the piston rod of described hydraulic cylinder and the end of cylinder body.
5. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 4, it is characterized in that, described gear train is toggle.
6. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 4, it is characterized in that, the first end of described hydraulic cylinder is connected by the first sliding connector and described base sliding; Second end of described hydraulic cylinder is by the second sliding connector and described web member sliding connection.
7. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 6, it is characterized in that, described first sliding connector comprises and is packed in the first slide rail on described height regulating mechanism and the first slide block with described first slide rail sliding connection, and the first end of described hydraulic cylinder is fixedly connected with described first slide block; Described second sliding connector comprises and is packed in the second slide rail on described web member and the second slide block with described second slide rail sliding connection, and the second end of described hydraulic cylinder is fixedly connected with described second slide block.
8. the fatigue test system of the interconnected suspension system of vehicle hydraulic as claimed in claim 7, it is characterized in that, described first sliding connector also comprises the first position limiting structure for limiting described first skid, and for limiting the second position limiting structure of described second skid.
9. the fatigue test system of the interconnected suspension system of the vehicle hydraulic as described in any one of claim 1 to 8, is characterized in that, described web member is fixedly connected with described base by support column, and described support column and described base junction are provided with reinforcement.
10. the fatigue test system of the interconnected suspension system of the vehicle hydraulic as described in any one of claim 1 to 8, is characterized in that, described controller is frequency converter.
CN201420449380.2U 2014-08-08 2014-08-08 The fatigue test system of the interconnected suspension system of vehicle hydraulic Active CN204043931U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132821A (en) * 2014-08-08 2014-11-05 常州万安汽车部件科技有限公司 Fatigue testing system for vehicle hydraulic interconnection suspension system
CN106949117A (en) * 2017-04-25 2017-07-14 哈尔滨工程大学 A kind of test device of spring Valve Vibration Frequency Response
CN108535030A (en) * 2018-06-21 2018-09-14 湖南科技大学 A kind of half vehicle floating installation and half truck position follower method based on load feedback

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132821A (en) * 2014-08-08 2014-11-05 常州万安汽车部件科技有限公司 Fatigue testing system for vehicle hydraulic interconnection suspension system
CN106949117A (en) * 2017-04-25 2017-07-14 哈尔滨工程大学 A kind of test device of spring Valve Vibration Frequency Response
CN108535030A (en) * 2018-06-21 2018-09-14 湖南科技大学 A kind of half vehicle floating installation and half truck position follower method based on load feedback
CN108535030B (en) * 2018-06-21 2023-09-05 湖南科技大学 Half-vehicle floating device based on load feedback and half-vehicle position following method

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