论文部分内容阅读
机载控制台是飞机电子设备的重要组成部分,随机振动是使其结构失效的主要因素。基于ANSYS Workbench软件平台对某机载控制台所处的实际工作环境进行随机振动模拟分析,分别获得了传统设计、拓扑优化设计下控制台整机方向的位移、等效应力云图;对拓扑优化控制台进行随机振动可靠性试验,获得了某特征点的随机振动加速度响应曲线。模拟分析和实际可靠性测试结果表明:拓扑优化控制台结构刚度大、动态性能好,满足强度要求,结构设计合理、可靠;所建立的有限元分析模型是合理的,所获得的仿真结果是可信的。这为机载设备的设计提供理论参考。
Airborne control console is an important part of the aircraft electronic equipment. Random vibration is the main factor in the structural failure. Based on the ANSYS Workbench software platform, the random vibration simulation analysis of the actual working environment of a certain airborne console was carried out, and the displacements and equivalent stress maps of the whole console under the traditional design and topological optimization design were respectively obtained. For the topology optimization console Random vibration reliability test was carried out to obtain a characteristic point of random vibration acceleration response curve. The results of simulation analysis and actual reliability test show that the topology optimization console has the advantages of high rigidity, good dynamic performance and satisfying the strength requirements. The structural design is reasonable and reliable. The finite element analysis model established is reasonable and the simulation results obtained are Letter This provides a theoretical reference for the design of airborne equipment.