CAJ | 학술논문

为了研究稳压器安装支架定频振动激励下的动态响应特性，以某型号稳压器振动试验用安装支架为研究对象，建立了支架及稳压器的有限元分析模型，通过模态分析获得了结构前六阶的固有频率及振型，对稳压器定频振动试验过程中支架的动态响应进行了分析。结果表明，低频基础激励时支架存在一定放大作用，而高频基础激励时支架能够起到一定的减振效果，试验验证表明有限元仿真结果与试验结果吻合较好。为阀门支架设计及振动环境下工装动态特性仿真提供参考。
위료연구은압기안장지가정빈진동격려하적동태향응특성，이모형호은압기진동시험용안장지가위연구대상，건립료지가급은압기적유한원분석모형，통과모태분석획득료결구전륙계적고유빈솔급진형，대은압기정빈진동시험과정중지가적동태향응진행료분석。결과표명，저빈기출격려시지가존재일정방대작용，이고빈기출격려시지가능구기도일정적감진효과，시험험증표명유한원방진결과여시험결과문합교호。위벌문지가설계급진동배경하공장동태특성방진제공삼고。
In order to study thedynamic response of bracket on vibration test of constant frequency, based on the mounting bracket of a constant pressure valve on vibration test, the finite element model of coupling systems was established. Through the modal analysis, the first six natural frequencies and vibration modals were obtained. the dynamic response of bracket was obtained by simulating on vibration test of constant frequency.The results show thatthe bracket has amplification effect with base excitation in low-frequency and weaken effects with base excitation in high-frequency. Test verification show that the simulation results were highly dovetailed with those of experiment. Study in the paper supplied feasible ways and references for valve bracket design and simulation on dynamic characteristic of fixture in vibration environment.