电驱动振动台架疲劳设计方法及应用

华慕文　孙先国

摘 要：电驱动振动台架有高速、重载的特点，疲劳强度评估是机械设计中的重要一環。传统的疲劳强度评估，多基于静态安全系数法。本文针对某高速电机振动台架，发展了一种基于非线性有限元技术的动态仿真和疲劳强度评估的方法，并优化了相关设计参数，取得了良好效果，对其他类似测试台架的设计也有一定的借鉴意义。

关键词：电驱动 振动台架 有限元法 振动疲劳

Fatigue Design Method and Application of Electric Drive Vibration Fixture

Hua Muwen，Sun Xianguo

Abstract：Electric drive vibration fixture is working under high speed and heavy gravity. Fatigue strength assessment is an important part of mechanical design， which is usually based on the traditional static safety factor method. This article demonstrates an example of dynamic simulation and fatigue strength assessment methods based on nonlinear finite element analysis for a high-speed motor vibration fixture， then optimizes relevant design parameters， and achieves good results. It can be used as reference for the design of other similar test bench.

Key words：electric drive， vibration fixture， FEM， vibration fatigue