某型民用运输机主起落架连接区结构静力试验

摘要

飞机静力试验是飞机试验的重要内容之一，是验证飞机结构强度和静力分析正确性的重要手段。为验证某型民用运输机主起落架连接区结构满足静强度要求，以及有限元计算分析的正确性，在静力试验飞机上进行了主起落架连接区结构静力试验。通过全机有限元模型和细节有限元模型分析计算，进行加载、应力应变、位移试验数据与有限元计算值的分析对比，计算值与试验数据符合较好。%Static strength test is one of the important tests for an aircraft and an important method to verify struc-tural strength and static analysis for an aircraft. To validate the safety of the main landing gear attachment structure of a type of civil aircraft and the results of finite element analysis ( FEA) model, a static structural test of the main landing gear attachment structure is performed on the static strength test aircraft. The load,stress/strain and dis-placement test data are compared with the analysis result of the aircraft finite element ( FE ) model and detail FE model. The results show that the FEA are in good agreement with test data.