摩托车车架模态分析与验证  

Analysis and Verification of Motorcycle Frame Modal

作　　者：李伟[1] 涂奎[1] 李先文 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074 [2]隆鑫工业有限公司技术中心,重庆400060

出　　处：《重庆理工大学学报（自然科学）》2011年第3期11-14,共4页Journal of Chongqing University of Technology：Natural Science

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.

关 键 词：摩托车车架 模态分析 有限元法 

分 类 号：U463[机械工程—车辆工程]