CAJ | 학술논문

利用有限元方法对几种液压消波器进行了有预应力模态分析，得到了消波器的前10阶固有频率，并以此为依据对消波器结构进行了改进。仿真显示：改进后的结构固有频率远离了脉动频率，因此在实际工作中更不易于与流体脉动产生谐振。该结果为进一步对消波器进行声学分析，从而改进消波器结构提供了理论依据。
이용유한원방법대궤충액압소파기진행료유예응력모태분석，득도료소파기적전10계고유빈솔，병이차위의거대소파기결구진행료개진。방진현시：개진후적결구고유빈솔원리료맥동빈솔，인차재실제공작중경불역우여류체맥동산생해진。해결과위진일보대소파기진행성학분석，종이개진소파기결구제공료이론의거。
Finite element method was used to make the prestressed modal analysis for some kind of different hydraulic muffler structures. The muffler was redesigned according to the first ten order natural frequencies gotten by the prestressed modal analysis. The results indicate that the natural frequency of the improved structure is far more than fluid pulse frequency,so the resonation is more un-likely to happen. The results provide basis for further acoustic analysis and design improvement of muffler.