无线电工程

针对机载设备的隔振需求,对机载设备进行了振动分析和隔振设计。利用SolidWorks软件建立机载设备的三维模型,通过ANSYS有限元分析软件对机载设备进行了模态分析,得到系统的固有频率和振型。对机载设备进行了随机振动分析,得出机柜不同部位在激振频率范围内的加速度响应和应力响应。结合动力学仿真结果和隔振理论对机柜进行了隔振系统设计,对机载设备的隔振效果进行了试验验证。试验结果表明,隔振系统达到了较好的隔振效果。

To meet the requirement of vibration isolation in airborne equipment,vibration analysis and vibration isolation design are performed for airborne equipment. A 3D model of airborne equipment is built based on Solid Works software. Model analysis is conducted by using ANSYS software and the inherent frequencies and mode shapes of the system are acquired. Then random vibration analysis is conducted,and the acceleration response and stress response of the different parts in the airborne equipment excited by broadband random vibration are obtained.A vibration isolation system is designed by using the dynamic simulation results and the theory of vibration isolation,and the effectiveness of vibration isolation is verified by test. The test results show that the vibration isolation system achieves a better vibration isolation effect.