机载雷达电源单元的减重设计及力学仿真分析

机载电子设备有着重量轻、功率密度高等要求,实际上还面临着各种严酷的力学环境。针对机载雷达电源单元,文中从电源模块及整件两方面着手开展减重设计。为了验证经过减重设计后的结构刚强度是否满足要求,采用ANSYS 软件分析了该电源单元在加速度过载、冲击及随机振动等各种工况下的结构响应和受力情况。分析结果表明,该电源单元的结构设计满足机载环境要求。文中针对雷达电源单元的减重设计及力学仿真分析对于其他机载电子设备的结构设计具有一定的指导意义。

Weight-reduction Design and Mechanical Simulation Analysis of Power Supply Assembly in Airborne Radar

Airborne electronic equipments have the requirements of light weight and high power density, and in fact, they need to face up to various severe mechanical environments during whole service lifetime. In this paper, weight-reduction design is conducted for the power supply assembly in airborne radar from modular and holistic level. In order to verify that the structure of the power supply assembly satisfies the strength and stiff-ness requirements, ANSYS software is used to analyze the mechanical response of the power supply assembly under the working conditions of acceleration overload, impact and random vibration. It could be concluded that the mechanical design of the power supply assembly satisfied the airborne environment requirements. The weight-reduction design and mechanical simulation analysis for the power supply assembly in this paper are helpful for guiding the mechanical design of other airborne electronic equipment.