﻿ 基于刚弹耦合模型的薄壳车体危险点疲劳计算

# 基于刚弹耦合模型的薄壳车体危险点疲劳计算Fatigue Assessment of Risk Point on Thin-Shelled Hull Based on the Rigid-Flex Coupled Model

Abstract:
Taking the armored vehicle as example, this paper focused on the fatigue assessment problem occurred in the application of the thin-shelled armored vehicle by using time domain methods. This paper took use of rigid-flex coupled dynamic modeling method to build and verify the vehicle model. Depending on the mission profile, the load time his- tory was gained by simulating. Through analyzing the simulation results, the dangerous points on the hull were figured out. On the basis of accessing the dynamic loads of the dangerous point, through using time domain method, the load spectrum was built up to do the fatigue calculation. The result showed that fatigue problem will occur at the dangerous point when the driving distance was about 37,050 kilometers under the mission profile.

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