CAJ | 학술논문

　　针对某次火箭发射的发动机故障现象，本文基于APDL和Matlab语言解决了过滤网/骨架结构的建模问题，并准确刻画了过滤网与骨架的相互作用关系。基于试车试验数据进行了起动压力峰的动应力分析，计算分析结果与试验结果一致性较好，复现了故障现象，揭示了故障机理，为飞行试验故障定位及后续的结构改进提供了理论依据及技术支撑作用。
　　침대모차화전발사적발동궤고장현상，본문기우APDL화Matlab어언해결료과려망/골가결구적건모문제，병준학각화료과려망여골가적상호작용관계。기우시차시험수거진행료기동압력봉적동응력분석，계산분석결과여시험결과일치성교호，복현료고장현상，게시료고장궤리，위비행시험고장정위급후속적결구개진제공료이론의거급기술지탱작용。
Aiming at a launch trouble, the FEM models of filter/skeleton are established with the help of software of APDL and Matlab,and interactional connection is described accurately between Filter and Skeleton. Based on the experimentation data,dynamic response analysis are implemented when the nonlinear factors, such as plasticity,larger displacement and contact are considered. The results accord with the experimentation, which provide the important reference for failure analysis and structure improvement.