某125型跨骑式摩托车结构的动态特性研究  

Study on Dynamic Characteristics of a 125 Style Bestriding Motorcycle Structure

作　　者：张先刚[1] 石宁[2] 朱平[1] 韩旭[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]新疆工业高等专科学校机械系,乌鲁木齐830091

出　　处：《机械设计与研究》2005年第1期72-75,共4页Machine Design And Research

摘　　要：随着人们生活水平的不断提高以及摩托车的逐渐普及,人们对摩托车结构的动态性能提出了越来越高的要求。为此,全面探讨它的动态特性是十分必要的。以某125型跨骑式摩托车为例,建立了整车的有限元模型并进行了模态分析,通过对发动机在5000r/min转速下,摩托车结构的动力响应分析以及摩托车以50km/h车速行驶在B级公路上时,在路面不平度激励下,摩托车结构的动力响应分析,找出了该摩托车结构的薄弱环节,并提出了一些改进措施,为开展摩托车结构动态特性研究提供了可借鉴的方法。In this paper, a Model 125 bestriding motorcycle is taken as an example for discussing its dynamic characteristics. Firstly, the finite element model is created and the normal modes analysis is performed. Secondly, the dynamic response is computed when the engine is rotating at a speed of 5000r/min. The effect on the dynamic response of the road surface roughness is also analyzed when the motorcycle is running on the B level road at a speed of 50km/h. On the basis of the analysis results, suggestions about improving the motorcycle structure have been proposed. It offers a feasible method in the development of research on dynamic characteristics of motorcycle structure.

关 键 词：摩托车结构 模态分析 动力响应分析 

分 类 号：TH137[机械工程—机械制造及自动化]