一种减振器衬套刚度试验工装设计方法介绍

Introduction of a Design Method of Shock Absorber Bushing Stiffness Test Fixture

汽车衬套的刚度特性对汽车底盘悬架性能的影响至关重要,通过对衬套静刚度和动刚度的试验测量是目前获得衬套刚度特性的主要方法。考虑到一些衬套具有特殊的结构形状,介绍了一种试验工装的设计方法,能够实现衬套试验过程的快速安装,并且满足衬套不同方向的动静刚度以及角刚度的试验要求。结果表明:工装自身刚度高变形小,在动刚度试验过程中未出现共振抖动等影响试验结果的现象发生,满足衬套刚度试验的需求,为异形衬套的工装开发提供了设计思路。

The stiffness characteristics of automobile bushing are very important to the performance of automobile chassis suspension. At present, the main method to obtain the stiffness characteristics of bushing is to measure the static stiffness and dynamic stiffness of bushing. Considering that some bushings have special structural shapes, a design method of test fixture is introduced, which can realize the rapid installation of bushing test process, and meet the requirements of dynamic and static stiffness test in different directions and angular stiffness test. The results show that the fixture has high stiffness and small deformation, and there is no resonance shake and other phenomena affecting the test results in the process of dynamic stiffness test, which meets the needs of bushing stiffness test, and provides a design idea for the fixture development of special-shaped bushing.