Tesla型脉冲功率源随机振动响应分析  

Random Vibration Analysis of Tesla-Type Pulse Generator

作　　者：范红艳[1,2] 张喜波 刘胜[1,2] 李鹏辉 王俊杰[1,2] 王刚 FAN Hong-yan;ZHANG Xi-bo;LIU Sheng;LI Peng-hui;WANG Jun-jie;WANG gang(Northwest Institute of Nuclear Technology,Xi＇an 710024,China;Science and Technology on High Power Microware Laboratory,Xi＇an 710024,China)

机构地区：[1]西北核技术研究所,西安710024 [2]高功率微波技术重点实验室,西安710024

出　　处：《现代应用物理》2018年第3期68-74,共7页Modern Applied Physics

摘　　要：为评估Tesla型脉冲功率源在振动环境中的可靠性,基于有限元仿真软件,采用随机振动分析方法研究了该脉冲功率源的随机振动特性。计算中考虑了预应力对结构模态的影响,并对静力结果与随机振动结果矢量叠加得到的总应力进行了分析。根据仿真结果,分析了磁芯和各绝缘支撑结构等薄弱部件的振动强度,发现尾端绝缘子的最大动应力值大于其疲劳极限;同时对尾端绝缘子的疲劳寿命进行了计算。总结了Tesla型脉冲功率源中形成线外筒、中筒、内筒和主开关外筒的强度设计原则,可为同类型脉冲功率源的强度设计提供参考。To evaluate the reliability of Tesla-type pulse generator under the vibration condition, the random vibration characteristics of the pulse generator are studied by the random vibration analysis method based on the finite element simulation software. The effect of pre-stress on structural mode is considered in the calculation, and the total stress obtained by superposition of static stress and random vibration is analyzed. The vibration strengthes of the weak components which include magnetic core and insulators are evaluated. The key points of strength design of the outer conductor, the middle conductor, the inner conductor, and the main switch chamber in Tesla-type pulse generator are summarized, which provides a reference of the strength design for the same type of pulse generators.

关 键 词：Tesla型脉冲功率源 公路运输 随机振动分析 疲劳寿命 强度设计 

分 类 号：TN782[电子电信—电路与系统]