Bilateral Random Spectrum Loading Test Fixture for Stabilizer Bar and Its Test Method

Abstract

The invention discloses a bilateral random spectrum loading test tool for a stabilizer bar and a test method. The test tool includes a test bracket for fixing the stabilizer bar and two drivers for applying loads to both ends of the stabilizer bar. During the test, the two The loads exerted by the two drivers on the end of the stabilizer bar at the same time are equal in magnitude and opposite in direction. The stabilizer bar bilateral random spectrum loading test tool has the advantages of simple structure, simple operation, wide trial performance and low cost. Both ends move at the same time, at the same frequency and in different directions, simulating the torsional force of the stabilizer bar during the actual road test process, solving the problem that a single stabilizer bar cannot be iterated on both sides, and can reflect the load situation in the actual road test, truly reflecting The fatigue characteristics of the parts are obtained, and the accuracy and reliability of the test data are high, which provides a good test method for the development and lightweight verification of the parts.

Description

technical field [0001] The invention belongs to the technical field of automobile product testing, in particular, the invention relates to a stabilizer bar bilateral random spectrum loading test tool and a test method thereof. Background technique [0002] The car stabilizer bar is one of the most important parts in the manufacturing process of the car chassis. It is an elastic member designed to prevent the car from being severely rolled when it is bent. The fatigue life index of the stabilizer bar is one of the most important items to verify its performance. Its good durability is not only the basis for safe driving of the car, but also meets the comfort requirements of the driver and passengers. Therefore, the fatigue life test of automobile stabilizer bar is very necessary and important. [0003] At present, the torsional fatigue test of passenger car stabilizer bar bench mainly includes bilateral constant amplitude loading test, suspension vertical system test and vehi...

AI Technical Summary

Problems solved by technology

However, this test method has cumbersome test equipment, more auxiliary non-assessment parts, longer preparation time, and higher test cost, which is not conducive to the rapid assessment and verification of a single stabilizer bar; however, although the bilateral constant amplitude loading test for the stabilizer bar It is the fastest, simplest, most direct, and lowest-cost assessment method, but it cannot reflect the loading conditions of the parts in the actual road test, and it cannot reflect the fatigue characteristics of the parts under different loads

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