IF转换器振动工装的设计及力学仿真

Design and Mechanical Simulation of Vibration Fixture about IF Converter

综合考虑材料、结构、连接、频率、加工工艺、操作简便性等因素,对IF转换器的振动工装进行设计。同时,为验证工装结构的强度和刚度,采用ANSYS对其进行模态和随机振动分析,得到振动工装的各阶固有频率和振型,以及加速度、位移和应力分布。振动工装X、Y、Z三个方向上传感器所在点的传递系数与理论数据的相对误差分别为11.1%、6.3%、2.9%,说明IF转换器振动工装的设计能满足使用要求,同时,软件模拟结果对后续工作具有重要的指导意义,可有效地解决传统设计中产品研制周期长、设计偏于保守、工作效率低等问题。

Comprehensive considering materials, structure, connection, frequency, processing, operation and other factors, the vibration fixture of IF converter is designed. Meanwhile, in order to verify the vibration fixture structure strength and stiffness. The modal condition and random vibration analysis are studied by ANSYS, and the natural frequency, vibration modes, acceleration, displacement and stress distribution of vibration fixture can be obtained .The relative error between the experimental data and the theoretical data of the sensor transfer coefficient on the X, Y, Z three directions of the vibration fixture are 11.1%, 6.3%, 2.9%respectively. So it is illustrated that the IF converter vibration tooling design can satisfy the requirement, and the software simulation results have important guidance for the follow-up work, which can effectively solve the defects of the traditional design, such as conservative cycle long design and low efficiency.