基座阻尼处理减振性能研究

Study on the Reduce Vibration Property of the Stand under Damping Treatment

本文采用有限元软件对某型基座阻尼处理前后的振动特性进行模拟计算,计算得到基座阻尼处理前后的特征频率和模态阻尼,采用振动测试系统对有限元计算结果与试验结果进行比对,测量值和计算值吻合度较好,所采用的计算方法可以用来预估阻尼材料的减振效果。

Based on the FEM of the stand before and after damping treatment,The natural frequency and mode damping ratios was obtained by simulation. The result show that the simulation was efficient by the vibration experiments. The methods can be used to estimated damping material＇s vibration reduce effects.