航天产品冲击响应分析及损伤/失效评估方法研究综述

A Review of Shock Response Analysis and Damage/Failure Evaluation of Aerospace Products

冲击环境是火箭、导弹等航天器在其全寿命周期经历的严酷的力学环境之一,其往往会导致航天器产品发生损伤/失效,甚至引发飞行事故,已成为制约航天器飞行可靠性提升的关键因素。本文分别从理论分析、经验外推以及数值仿真、试验研究等角度,系统总结了国内外在航天产品冲击响应分析与冲击损伤/失效两个方面的研究进展,并综述分析了国内外众多学者提出的各种冲击损伤/失效评估方法在航天产品上的适用性。在此基础上,结合我国航天工程实际,为今后的相关技术发展提出了建议。

The shock environment is one of the most severe mechanical environment experienced by spacecraft such as rockets and missiles.Shock environment often leads to failure of aerospace products and flight accidents of spacecraft,which has become a significant factor restricting the reliability promotion of spacecraft flights.In this paper,a research review of the shock response analysis and shock damage/failure of aerospace products is presented from three aspects:theoretical analysis,numerical simulation and experimental research.And the applicability of various shock damage/failure criteria and evaluation methods to aerospace products is also analyzed.In the end,the main research directions in relevant aspects are emphasized according to the domestic space engineering.