机匣安装边结构研究

本文利用多种实验力学方法研究了航空发动机机匣安装边结构的连接特性和力学行为以及机匣在安装，受载过程中的安装边的变形、应力和螺栓内力、应力等的规律；讨论了安装边结构设计参数的选择范围

Design of Bolted Joint of Aeroengine Casing

The design of a metal to metal bolted joint between two aeroengine casings is surprisingly difficult.The joint has to achieve structural integrity and perform a sealing function.In this paper,the experimental research of a casing model has been conducted by using experimental mechanics method,the deformation and stress of flange and bolt during assembling and loading are measured.Based on these experimental results,the mechanical behavior of bolted joint is discussed and principle of designing bolted joint of aeroengine casing is suggested.