摘要
运用有限元技术对某摩托车车架进行了自由模态分析,并用LMS设备进行了模态试验。试验结果验证了该有限元模型的正确性。同时得出了该车架前14阶固有频率和振型特征,使摩托车的结构在设计中尽量避免共振和噪声,加强其稳定性和舒适性,为车架的改进设计提供理论依据。
In this paper,the modal characteristic of motorcycle frame was analyzed by the Finite Element Method（FEM） and tested by Experimental Modal Analysis（EMA） with LMS device respectively.The experiment results proved the correctness of finite modal.Then,it obtained the frame＇s former fourteen natural frequencies and correspond mode shapes,so that the resonance and noise would be avoided during the design of the motorcycle frame.It can strengthen the stability and ridding comfort,and also supply foundation for theory for improving design of the frame.
出处
《重庆理工大学学报（自然科学）》
CAS
2011年第3期11-14,共4页
Journal of Chongqing University of Technology：Natural Science
关键词
摩托车车架
模态分析
有限元法
motorcycle frame
modal analysis
finite element method
