轮式车辆的路谱疲劳寿命研究和应用

Research and Application of Road Spectrum Fatigue Life for Wheeled Vehicles

轮式车辆面对复杂的自然环境时,整车会受到不同载荷的作用,这通常会引起部分零件疲劳强度失效,影响轮式车辆的性能发挥,这对现代轮式车辆的疲劳强度测试及分析提出了许多新的挑战.本文针对轮式车辆在行驶过程中道路载荷对悬架系统的影响进行分析,研究建立一套从载荷谱采集、结构疲劳预测的零部件疲劳寿命测试分析方法,为轮式车辆面对不同的应用场景提供切实可行疲劳分析思路和方法.

When wheeled vehicles face complex natural environments,the entire vehicle is subjected to different loads,which usually causes fatigue strength failure of some parts and affects the performance of wheeled vehicles.This poses many new challenges for the fatigue strength testing and analysis of modern wheeled vehicles.This article analyzes the impact of road loads on the suspension system of wheeled vehicles during driving,and establishes a fatigue life testing and analysis method for components based on load spectrum collection and structural fatigue prediction,providing practical and feasible fatigue analysis ideas and methods for wheeled vehicles in different application scenarios.