论文部分内容阅读
飞机结构使用过程中始终处在振动环境之中,振动引起的结构疲劳破坏是飞机结构破坏的主要模式之一,也是航空武器装备研制和使用中的共性问题。本文对国内、外几十年来形成的主要振动疲劳寿命预估方法进行了归纳整理,通过对飞机典型元件的理论分析、数值计算和试验研究,分析了各种振动疲劳寿命预估方法的适用性,为飞机典型结构振动疲劳寿命预计提供分析手段与设计参考。
Aircraft structure is always in the process of using the vibration environment, structural fatigue damage caused by vibration is one of the main modes of aircraft structure damage, but also the development and use of aviation weapons and equipment in common problems. This paper summarizes and summarizes the main methods for estimating the fatigue life of vibration formed at home and abroad for decades. By applying the theoretical analysis, numerical calculation and experimental study on typical aircraft components, the methods for estimating the fatigue life of various types of vibration are analyzed It provides an analytical method and reference for the prediction of the typical fatigue life of aircraft.