【摘 要】
：
The vibration comfort of a certain motorcycle is bad.The road test shows that excitations from engine affect the vibration character of motorcycles.In this
【机 构】
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College of Mechanical Engineering,Chongqing University,Chongqing,400030,P.R.China
【出 处】
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INternational Conference on Product Design and Manufacturing
论文部分内容阅读
The vibration comfort of a certain motorcycle is bad.The road test shows that excitations from engine affect the vibration character of motorcycles.In this paper,modal analysis is applied to improve vibration comfort of motorcycle.Firstly,the finite element models of frame without and with engine are set up to complete modal analysis,and the accuracy of calculated modes are validated by the experimental modal analysis.The results show that the engine has great influence on modal characteristic of the body.The matching of body with the excitations from engine and road are analyzed.The results show the modal frequency of body should be increased to improve vibration comfort of motorcycle.Secondly,an improved project is presented to increase modal frequencies of the body,and then is validated by experimental modal analysis.Compare to the origin body,the modal frequency of amended body is increased by 15Hz.Finally the road test of riding comfort are carried out,which show that ride quality is improved obviously after amending.
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