摘要
动力吸振器对结构振动有明显的抑制效果,为探究吸振器对结构振动产生抑制的原因,以平板为研究对象,给出了一种平板结构振动功率流的仿真计算方法.并基于此方法对平板结构振动功率流矢量的流向进行可视化分析.研究表明,在工作频段内动力吸振器改变了结构振动功率流矢量的流向,转移并耗散了大部分振动能量.而在其他频段内,能量流向未发生明显改变,动力吸振器并未起到明显作用.
The dynamic vibration absorber has obvious structure vibration reduction effect.In order to explore the reason why the dynamic vibration absorber can suppresses the structure vibration,the plate is regarded as the research object,and anemulationcalculation method for the power flow of the plate structure vibration is given.Based on this method,the direction of the power flow vector of the plate structure vibration is visually analyzed.The research shows that the dynamic vibration absorber changes the direction of the power flow vector of the structure vibration in the working frequency band,and it transfers and dissipates most of the vibration energy.However,in other frequency band,the direction of the energy flow does not change significantly,and the dynamic vibration absorber does not play an obvious role.
作者
李哲豪
Li Zhe-hao(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an 710043,Shaanxi Province,China)
出处
《科学与信息化》
2023年第5期114-116,共3页
Technology and Information
关键词
动力吸振器
平板
功率流
可视化
dynamic vibration absorber
plate
power flow
visualization
