CN108827653B - Stabilizer bar assembly strength test device and test method - Google Patents

Stabilizer bar assembly strength test device and test method Download PDF

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Publication number
CN108827653B
CN108827653B CN201810713278.1A CN201810713278A CN108827653B CN 108827653 B CN108827653 B CN 108827653B CN 201810713278 A CN201810713278 A CN 201810713278A CN 108827653 B CN108827653 B CN 108827653B
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stabilizer bar
bar assembly
unit
test piece
test
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CN108827653A (en
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战文超
彭辉
熊云亮
魏宏
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SAIC Volkswagen Automotive Co Ltd
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SAIC Volkswagen Automotive Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to a stabilizer bar assembly strength test device and a test method, wherein the stabilizer bar assembly strength test device comprises a stabilizer bar assembly test piece, a stabilizer bar fixing piece, a test component and a heating unit, the stabilizer bar assembly test piece comprises a bar body, a clamp and a rubber support, the stabilizer bar fixing piece adopts an auxiliary frame on a real vehicle to fix the bar body, the test component comprises a fixing component and a load loading component, and the heating unit loads a thermal load on the rubber support; the oil cylinder unit of the test piece loading assembly drives the motion unit to move along the direction approaching or deviating from the stabilizer bar fixing piece through the guide rail unit, so that the coupling bar is driven to move, the test piece of the stabilizer bar assembly is loaded, the temperature control and road simulation displacement signals are applied to the strength test of the stabilizer bar assembly, the influences of the auxiliary frame and the coupling bar are comprehensively considered, the loaded state of the stabilizer bar assembly in the whole vehicle running process can be objectively reflected, and the accuracy of the test result is improved.

Description

Stabilizer bar assembly strength test device and test method
Technical Field
The invention relates to the technical field of automobile part tests, in particular to a stabilizer bar assembly strength test device and a test method.
Background
The stabilizer bar assembly of the automobile generally comprises a bar body, a clamp and a rubber support, plays an important role in controlling stability and safety of the automobile, particularly provides roll rigidity for the automobile in the steering process, helps to stabilize the automobile body in steering, prevents the automobile from transversely tipping and improves smoothness, provides good oversteer confidence for a driver, and is an important part in an automobile suspension. The rubber support of the stabilizer bar assembly is closer to the engine and works in a high-temperature environment for a long time, so that the rubber has a severe requirement on the service life. Premature failure of the rubber support can lead to abnormal sound, steering stability and roll stiffness degradation, which in turn can create a safety hazard.
The verification objects of the prior device test are mainly a rod body and a clamp of the stabilizer bar assembly, the device verification of the rubber support is lacked, the influence of the heat load of an engine on the rubber support cannot be effectively verified in the test, the temperature control is lacked, the running track simulation of the stabilizer bar assembly in the whole vehicle is lacked, more simple direct loading of the stabilizer bar assembly is realized, the stress state of the stabilizer bar assembly is inconsistent with the actual state, the strength of a part cannot be comprehensively checked, the accuracy of test data is poor, and the effect is poor.
Disclosure of Invention
The invention aims to provide a stabilizer bar assembly strength test device and a stabilizer bar assembly strength test method, which solve the problems that in the prior art, temperature control is lacked and a more accurate road analog signal is needed when the stabilizer bar assembly strength test is carried out, and the actual working condition of the stabilizer bar assembly cannot be effectively simulated.
In order to achieve the above purpose, the invention provides a stabilizer bar assembly strength test device and a test method, wherein the stabilizer bar assembly strength test device comprises a stabilizer bar assembly test piece, a stabilizer bar fixing piece, a test component and a heating unit, the stabilizer bar assembly test piece comprises a bar body, a clamp and a rubber support, the stabilizer bar fixing piece adopts a subframe on a real vehicle to fix the bar body, the test component comprises a fixing component and a load loading component, and the heating unit loads heat load on the rubber support to simulate the influence of the heat load of an engine;
the fixing component is connected with the stabilizer bar fixing piece;
the load loading assembly comprises an oil cylinder unit, a guide rail unit, a moving unit and a coupling rod, wherein the guide rail unit is arranged on the fixing assembly, the oil cylinder unit comprises a fixed end and a loading end, the loading end of the oil cylinder unit is connected with one end of the moving unit through the guide rail unit, two ends of the coupling rod are respectively connected with the other end of the moving unit and the end of a test piece of the stabilizer bar assembly, and the oil cylinder unit drives the moving unit to move along the direction approaching or deviating from the stabilizer bar fixing piece so as to drive the coupling rod to move so as to apply load to the test piece of the stabilizer bar assembly.
Optionally, the heating unit is a heating cover, and the heating unit coats the rubber support on the stabilizer bar assembly test piece.
Optionally, the heating unit is disposed on the stabilizer bar fixing member.
Optionally, a temperature sensor is arranged in the heating unit.
Optionally, the fixing component comprises a first upright and a second upright, and the stabilizer bar fixing piece is connected with the first upright through a bracket unit.
Optionally, the load loading assembly further includes a third upright, and the fixed end of the oil cylinder unit is disposed on the third upright.
Optionally, the stabilizer bar assembly test piece the shaft is the U type, the clamp overlaps respectively and locates the both ends of shaft, rubber support set up in the shaft with between the clamp.
The invention also provides a method for testing the strength of the stabilizer bar assembly by the device for testing the strength of the stabilizer bar assembly, which comprises the following steps:
providing the stabilizer bar assembly strength test device;
acquiring displacement signals at two ends of a test piece of the stabilizer bar assembly from an actual vehicle;
converting the displacement signal into a driving signal;
and driving the oil cylinder unit to move according to the driving signal, and driving the coupling rod to move by the oil cylinder unit so as to apply load to the stabilizer bar assembly test piece.
Optionally, the displacement signal is subjected to filtering, compression, smoothing and stretching treatment, and then the driving signal is obtained through iteration.
Optionally, after the displacement signal is collected, the stabilizer bar assembly strength test method further includes:
collecting temperature signals at the rubber supporting position on the stabilizer bar assembly test piece;
the temperature within the heating unit is defined in dependence of the temperature signal.
According to the test device and the test method, the displacement signals acquired by the actual vehicles are used as driving signals to drive, the running work and the loaded state of the stabilizer bar assembly on the whole vehicle road are objectively reflected, whether the stabilizer bar assembly can meet the requirements of clients can be more comprehensively checked, the obtained test result is more objective, risks can be more accurately identified, and the failure probability of the stabilizer bar assembly on the whole vehicle is reduced.
Further, the temperature condition of the test piece of the stabilizer bar assembly in the working state is simulated by additionally arranging a heating unit in the test device, and the influence of the environmental temperature of the test piece of the stabilizer bar assembly in the working state is considered; the stabilizer bar assembly test piece is fixed by using the stabilizer bar fixing piece, and the actual fixing mode and the installation rigidity of the stabilizer bar assembly test piece in the whole vehicle are simulated; the guide rail unit is adopted to limit the movement direction of the oil cylinder unit, so that the accuracy of the loading direction is ensured; the oil cylinder unit and the stabilizer bar assembly test piece are connected through the coupling bar, and the space angle of the coupling bar in the whole vehicle is restored, so that the movement track of the stabilizer bar assembly test piece in the whole vehicle is restored.
Drawings
FIG. 1 is a schematic view of a stabilizer bar assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a stabilizer bar assembly strength test apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a heating unit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a heating unit installation in accordance with an embodiment of the present invention.
Wherein: 10-a stabilizer bar assembly test piece; 11-a shaft; 12-clamping hoop; 13-rubber support; 21-a first upright; 22-a second upright; 23-a scaffold unit; 31-a third upright; 32-an oil cylinder unit; 33-a rail unit; 34-a motion unit; 35-a coupling rod; 40-stabilizer bar mount; 50-a heating unit; 501-an outlet hole.
Detailed Description
Specific embodiments of the present invention will be described in more detail below with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
The stabilizer bar assembly test piece 10 is an auxiliary elastic element in an automobile suspension, and has the functions of preventing the automobile body from excessively laterally rolling during turning, preventing the automobile from laterally tipping, improving smoothness and keeping the automobile body balanced. The stabilizer bar assembly test piece 10 is a torsion bar spring made of spring steel and is transversely arranged at the front end and the rear end of the automobile. The middle part of the rod body 11 is connected with the auxiliary frame by a rubber support 13, and the two ends are respectively fixed on the left suspension and the right suspension. When the vehicle body moves only vertically, the suspensions on both sides deform identically, and both ends of the stabilizer bar assembly test piece 10 move in the same direction, and the rubber support 13 provides torsional rigidity, which is relatively small in this case. When the automobile turns, the automobile body is inclined, the two side suspensions are not consistent in jumping, the outer side suspensions can press the stabilizer bar assembly test piece 10, the stabilizer bar assembly test piece 10 is twisted, the rebound force of torsion of the rod body 11 can prevent wheels from lifting up and become the resistance for continuing the inclination, the rod body 11 of the stabilizer bar assembly test piece 10 and the rubber support 13 act together, larger torsional rigidity (the specific torsional rigidity value is related to factors such as the rigidity of the rod body 11 and the relative motion phases of two ends) can be provided, so that the automobile body is balanced as far as possible, and the transverse stability is achieved.
Specifically, as shown in fig. 1, the stabilizer bar assembly test piece 10 includes a bar body 11, two clips 12 and a rubber support 13, the bar body 11 is U-shaped, the two clips 12 are respectively sleeved at two ends of the bar body 11, and each rubber support 13 is disposed between the bar body 11 and the clip 12.
Referring to fig. 2, which is a schematic structural diagram of a stabilizer bar assembly strength test device according to an embodiment of the present invention, the stabilizer bar assembly strength test device includes a stabilizer bar assembly test piece 10, a stabilizer bar fixing member 40, a test component and a heating unit 50, wherein the stabilizer bar assembly test piece 10 includes a bar body 11, a clip 12 and a rubber support 13, the stabilizer bar fixing member 40 adopts a subframe on a real vehicle to fix the bar body 11, the test component includes a fixing component and a load loading component, and the heating unit 50 loads a thermal load on the rubber support 13;
the fixing assembly is connected with the stabilizer bar fixing member 40; the load loading assembly comprises an oil cylinder unit 32, a guide rail unit 33, a moving unit 34 and a coupling rod 35, wherein the guide rail unit 33 is arranged on the fixing assembly, the oil cylinder unit 32 comprises a fixed end and a loading end, the loading end of the oil cylinder unit 32 is connected with one end of the moving unit 34 through the guide rail unit 33, two ends of the coupling rod 35 are respectively connected with the other end of the moving unit 34 and the end of the stabilizer bar assembly test piece 10, and the oil cylinder unit 32 drives the moving unit 34 to move along a direction approaching or deviating from the stabilizer bar fixing piece 40 so as to drive the coupling rod 35 to move so as to apply load to the stabilizer bar assembly test piece 10.
The fixing assembly comprises a first upright 21 and a second upright 22, and the stabilizer bar fixing member 40 is connected with the first upright 21 through a bracket unit 23. The load loading assembly further comprises a third upright 31, and the fixed end of the oil cylinder unit 32 is arranged on the third upright 31.
Specifically, the fixing component comprises a first upright post 21 and a second upright post 22, the first upright post 21 and the second upright post 22 are arranged in parallel, the first upright post 21, the second upright post 22 and the third upright post 31 are respectively arranged at two ends of the oil cylinder unit 32, each group of first upright posts 21 is positioned at the inner side of the oil cylinder unit 32, the second upright post 22 is positioned at the outer side of the oil cylinder unit 32, the stabilizer bar fixing piece 40 is used for fixing the middle part of the stabilizer bar assembly test piece 10, and two ends of the stabilizer bar fixing piece 40 are connected to the first upright post 21 through the bracket unit 23.
Further, the stabilizer bar fixing member 40 adopts an original auxiliary frame on the actual vehicle, so that the installation state and the fixing mode of the test piece 10 of the automobile stabilizer bar assembly are consistent with the actual condition of the test piece in the whole vehicle, and the rigidity of parts in the test device is consistent with the rigidity of the whole vehicle. The test device overcomes the problems that the prior test device has a simple structure, only the clamp 12 of the test piece 10 of the stabilizer bar assembly is fixed, and the influence of peripheral parts such as an auxiliary frame, a vehicle body and the like on the rigidity of the test piece 10 of the stabilizer bar assembly is not considered, so that the test result does not accord with the actual situation and the like. The auxiliary frame can be regarded as a framework of the front and rear axles and is an integral part of the front and rear axles, and the main purposes are to reduce the transmission of road vibration and improve the connection rigidity of the suspension system. The suspension system may be assembled to the subframe to form an axle assembly and then mounted to the vehicle body together. The connection point of the auxiliary frame and the vehicle body is just like the suspension of an engine, and usually, an axle assembly is connected with the vehicle body through four suspension points, so that the connection rigidity of the auxiliary frame and the vehicle body can be ensured, and the auxiliary frame and the vehicle body have good vibration isolation effect. In this test device, the both ends of stabilizer bar mounting member 40 are connected with every first stand 21 through support unit 23, and four tie point positions of stabilizer bar mounting member 40 are connected to support unit 23, and the state of actual vehicle can be pressed close to the fixed part of stabilizer bar assembly test piece 10, under the state of simulation actual vehicle rigidity, verification part life-span that can be better.
The rail unit 33 is disposed on the second pillar 22. The oil cylinder unit 32 comprises a fixed end and a loading end, the fixed end is fixed on the third upright 31, the loading end of the oil cylinder unit 32 is connected with one end of the moving unit 34 through the guide rail unit 33, and two ends of the coupling rod 35 are hinged with the other end of the moving unit 34 and the end of the stabilizer bar assembly test piece 10 respectively. The guide rail unit 33 is provided with a linear bearing, and the loading end of the oil cylinder unit 32 is connected with the movement unit 34 after passing through the linear bearing, so that the loading end of the oil cylinder unit 32 is constrained by the guide rail unit 33, and the accuracy of the loading direction of the oil cylinder unit 32 can be ensured, namely, the pure linear movement is ensured, the straightness and the parallelism of the movement direction are ensured, and the accuracy of a test result is further ensured.
In actual situations, the stabilizer bar assembly of the automobile is connected with the suspension lower swing arm through the coupling bar 35, the loading end of the oil cylinder unit 32 of the test device is connected with one end of the motion unit 34, two ends of the coupling bar 35 are respectively hinged with the other end of the motion unit 34 and the end part of the stabilizer bar assembly test piece 10, and the coupling bar 35 is arranged according to the actual situations of the spatial posture and the angle of the coupling bar 35 in the whole automobile.
Further, as shown in fig. 3 and 4, the stabilizer bar assembly strength test apparatus further includes a heating unit 50, and the heating unit 50 loads the rubber support 13 on the stabilizer bar assembly test piece 10 with a thermal load to simulate the influence of the thermal load of the engine on the rubber support. The heating unit 50 covers the rubber support 13 on the stabilizer bar assembly test piece 10, and may also cover the shaft 11 of the whole stabilizer bar assembly test piece 10, and the temperature influence of the rubber support is mainly considered because the shaft 11 of the stabilizer bar assembly is less affected by the temperature in actual use. A temperature sensor is provided in the heating unit 50 for monitoring the temperature change. In this embodiment, the heating unit 50 is a heating cover, and is mounted on one end or both ends of the stabilizer bar fixing member 40 to cover the rubber supports 13 on both sides of the stabilizer bar assembly test piece 10, respectively, and heat the same. The heating mantle is provided with a receiving hole 501 so that one end of the stabilizer bar assembly test piece 10 can protrude out of the heating mantle through the receiving hole 501.
The existing stabilizer bar assembly strength test loading mode is to simply load the stabilizer bar assembly test piece 10 by directly adopting a linear oil cylinder unit or a torsion oil cylinder unit, load the stabilizer bar assembly test piece by only using sine wave signals, lack the change information of frequency, load amplitude and mean value in a road, and test the stabilizer bar assembly test piece at room temperature mostly without considering the temperature influence of the stabilizer bar assembly test piece 10 in the working state. The invention relates to a stabilizer bar assembly strength test method, which comprehensively considers temperature control and road analog signals and specifically comprises the following steps:
providing the stabilizer bar assembly strength test device;
acquiring displacement signals of two ends of the stabilizer bar assembly test piece 10 from an actual vehicle;
converting the displacement signal into a driving signal;
the cylinder unit 32 is driven to move according to the driving signal, and the cylinder unit 32 drives the coupling rod 35 to move so as to apply a load to the stabilizer bar assembly test piece 10.
Specifically, in the method for testing the intensity of the stabilizer bar assembly, road spectrum information of the stabilizer bar assembly during running of the vehicle, namely road analog signals, which may be displacement signals or loading force signals, is considered, in this embodiment, the displacement signals on the left and right sides of the test piece 10 of the stabilizer bar assembly are respectively collected through displacement sensors in a road test of an actual vehicle, after the displacement signals are subjected to filtering, compression, smoothing and stretching processes, two groups of oil cylinder units 32 are used in a device test, and the displacement signals are respectively iterated through Remote Parameter Control (RPC) software to obtain driving signals to drive the two groups of oil cylinder units 32 to act, so that the test piece 10 of the stabilizer bar assembly is loaded. In this way, the stabilizer bar assembly test piece 10 is tested according to the road simulation displacement signal, and the real condition of the automobile stabilizer bar assembly test piece 10 during road running is reproduced, so that the stress condition of the automobile stabilizer bar assembly test piece 10 in the real working state can be simulated, the accuracy of test data can be improved, and reliable data can be provided for the design of the automobile stabilizer bar assembly test piece 10.
After the displacement signal is acquired, the stabilizer bar assembly strength test method further comprises the following steps: collecting temperature signals at the position of the rubber support 13 on the stabilizer bar assembly test piece 10; the temperature within the heating unit 50 is defined in accordance with the temperature signal.
Specifically, a temperature sensor is mounted on an actual vehicle, a temperature signal at the rubber support 13 of the stabilizer bar assembly test piece 10 under a continuous test condition is collected and used as a temperature control signal set in the heating unit 50, and the temperature signal obtained in the heating unit 50 is transmitted to a regenerative fan to form closed loop control according to the temperature control signal. The temperature of the stabilizer bar assembly test piece 10 in the heating unit 50 is determined according to the temperature acquired by the actual vehicle working condition, so that the measured stabilizer bar assembly test piece 10 can be ensured to be always under the specified temperature requirement in the test process. In this embodiment, the heating unit 50 may use 2 heating hoods, and in implementation, the 2 heating hoods may be combined into 1 heating hood, but such heating hoods increase the size of the original heating hood, so that the uniformity of the temperature field in the heating hood is reduced, which is easy to cause that the temperature is difficult to control and adjust, and causes a larger deviation between the actual temperature and the target temperature.
The cylinder unit 32 does not synchronously act, so as to drive the coupling rod 35 to move, so as to load the stabilizer bar assembly test piece 10, and simulate the load change of two sides of the stabilizer bar assembly test piece 10 during the running of the automobile. The two oil cylinder units 32 act asynchronously, so that the phase change of two sides of an automobile in running can be truly simulated, factors such as frequency, load amplitude, load average value and the like are comprehensively covered, and road load can be simulated. The test device is connected with the motion unit 34 through the guide rail unit 33 at one end of the oil cylinder unit 32, the coupling rod 35 is respectively connected with the other end of the motion unit 34 and the stabilizer bar assembly test piece 10, and the coupling rod 35 and the stabilizer bar assembly test piece 10 are installed according to the whole vehicle space position and angle when being connected, so that load is ensured to be transmitted to the stabilizer bar assembly test piece 10 through the coupling rod 35, the combined loading can effectively simulate the motion trail at two ends of the actual vehicle stabilizer bar assembly test piece 10, and the loading accuracy is ensured. Here, if one cylinder unit 32 is used for loading, the effect of the relative change of the phase between the two cylinder units 32 on the change of the load of the stabilizer bar assembly test piece 10 cannot be simulated, unlike the two cylinder units 32 which are more free and flexible to load.
In summary, the invention applies the temperature control and road analog displacement signals to the strength test verification of the stabilizer bar assembly, comprehensively considers the influences of peripheral test pieces such as the auxiliary frame, the coupling rod and the like in the test device, and optimizes the loading stability, so that the device is extremely close to the working state of the part in the whole vehicle in test, can compress the test time, has the function of quick verification, accelerates the approval process, and provides the high-efficiency accurate stabilizer bar assembly strength test device and test method.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.

Claims (10)

1. The stabilizer bar assembly strength test device is characterized by comprising a stabilizer bar assembly test piece, a stabilizer bar fixing piece, a test component and a heating unit, wherein the stabilizer bar assembly test piece comprises a bar body, a clamp and a rubber support, the stabilizer bar fixing piece is used for fixing the bar body by adopting an auxiliary frame on a real vehicle, the test component comprises a fixing component and a load loading component, and the heating unit loads heat load on the rubber support;
the fixing component is connected with the stabilizer bar fixing piece;
the load loading assembly comprises an oil cylinder unit, a guide rail unit, a moving unit and a coupling rod, wherein the guide rail unit is arranged on the fixing assembly, the oil cylinder unit comprises a fixed end and a loading end, the loading end of the oil cylinder unit is connected with one end of the moving unit through the guide rail unit, two ends of the coupling rod are respectively connected with the other end of the moving unit and the end of a test piece of the stabilizer bar assembly, and the oil cylinder unit drives the moving unit to move along the direction approaching or deviating from the stabilizer bar fixing piece so as to drive the coupling rod to move so as to apply load to the test piece of the stabilizer bar assembly.
2. The stabilizer bar assembly strength test device of claim 1, wherein the heating unit is a heating mantle, and the heating unit wraps the rubber support on the stabilizer bar assembly test piece.
3. The stabilizer bar assembly strength test device of claim 2, wherein the heating unit is disposed on the stabilizer bar fixture.
4. A stabilizer bar assembly strength test apparatus as claimed in claim 3, wherein a temperature sensor is provided in the heating unit.
5. The stabilizer bar assembly strength test device of claim 1, wherein the fixing member comprises a first upright and a second upright, and the stabilizer bar fixing member is connected with the first upright through a bracket unit.
6. The stabilizer bar assembly strength test device of claim 1, wherein the load loading assembly further comprises a third upright, the fixed end of the cylinder unit being disposed on the third upright.
7. The stabilizer bar assembly strength test device of any one of claims 1-6, wherein the shaft of the stabilizer bar assembly test piece is U-shaped, the clips are respectively sleeved at two ends of the shaft, and the rubber support is arranged between the shaft and the clips.
8. The stabilizer bar assembly strength test method is characterized by comprising the following steps:
providing a stabilizer bar assembly strength test device according to any one of claims 1-6;
acquiring displacement signals at two ends of a test piece of the stabilizer bar assembly from an actual vehicle;
converting the displacement signal into a driving signal;
and driving the oil cylinder unit to move according to the driving signal, and driving the coupling rod to move by the oil cylinder unit so as to apply load to the stabilizer bar assembly test piece.
9. The method for testing the strength of the stabilizer bar assembly according to claim 8, wherein the driving signal is obtained through iteration after the displacement signal is sequentially subjected to filtering, compression, smoothing and stretching.
10. The stabilizer bar assembly strength test method of claim 9, wherein after the displacement signal is acquired, the stabilizer bar assembly strength test method further comprises:
collecting temperature signals at the rubber supporting position on the stabilizer bar assembly test piece;
the temperature within the heating unit is defined in dependence of the temperature signal.
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