摘要
为了了解某身管的振动情况,对该身管进行了实验模态分析,获得了其固有频率、阻尼比和振型等.此外,对身管进行了有限元模态分析,用于对模态试验的指导,并与试验的结果进行了对比和验证,两者符合很好.
In order to understand the vibration characteristic of a barrel,modal experiments are carried out to get parameters such as natural frequency,damping ratio and vibration pattern.Additionally,the finite element modal analysis of the barrel is conducted to guide modal experiment.The results of modal experiment and finite element analysis are compared,and they are in good agreement.
出处
《物理实验》
北大核心
2010年第10期36-39,共4页
Physics Experimentation
关键词
实验模态
身管
有限元
固有频率
experimental modal
barrel
finite element
natural frequency
