Method for obtaining test amplitude of front pillar assembly transverse durability test

By designing a lateral durability test fixture for the front strut assembly, simulating the lateral force of the wheel and calculating the test amplitude, the problem of easy breakage of the front strut assembly in campus vehicles was solved, the test accuracy and structural optimization effect were improved, and the service life was extended.

CN116026544BActive Publication Date: 2026-07-03LIUZHOU WULING NEW ENERGY VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LIUZHOU WULING NEW ENERGY VEHICLE CO LTD
Filing Date
2022-12-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Currently, when vehicles are used on campus, the shock absorber piston rod of the front strut assembly is prone to breakage after about three months, which limits the use of the vehicle. Existing technology makes it difficult to effectively simulate and evaluate its durability under lateral impact.

Method used

A fixture for lateral durability testing of the front strut assembly was designed. Lateral force is applied by a force loading device. Combined with a controller and detection components, the lateral force of the wheel in the actual use environment is simulated, vibration parameters are detected, the structure of the front strut assembly is optimized, and the test amplitude is calculated by damage equivalence theory to calculate the total number of vibrations that can be withstood.

Benefits of technology

It improves the simulation accuracy of front strut assembly durability tests, enabling prediction of its performance in real-world usage environments, preventing breakage, optimizing structural design, and extending service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116026544B_ABST
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Abstract

The application provides a front pillar assembly transverse durability test tool and a test amplitude acquisition method. In the application, a controller controls the action of an actuator by inputting parameters to apply a transverse force to the front pillar assembly, drives the reciprocating motion of the loading end of the front pillar assembly relative to the fixed end of the first support, simulates the transverse force on the wheel of the front pillar assembly in the actual use environment, can know the total vibration number that the front pillar assembly can withstand, and further knows the performance of the front pillar assembly, plays an important role in optimizing the structure of the front pillar assembly, and especially the second support is supported on the test bench through the rolling part. In addition to the supporting role, when the force loading device applies a horizontal force, the rolling part can fully meet the demand of the arc motion of the front pillar assembly loading place in the durability test process, and is beneficial to improving the accuracy of the test simulation.
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