基于蒙特卡罗法的摩托车车架灵敏度分析  

Sensitivity analysis of a motorcycle frame using the Monte Carlo method

作　　者：邓兆祥[1] 颜长征[1,2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]重庆车辆检测研究院,重庆401122

出　　处：《重庆大学学报（自然科学版）》2008年第10期1113-1117,1122,共6页Journal of Chongqing University

基　　金：科技部攻关计划重点项目(2004BA434C-2)

摘　　要：摩托车车架的灵敏度分析有助于提高其设计的成功率。在阐述蒙特卡罗全局灵敏度分析法原理以及车架灵敏度分析数值模拟实现的基础上,以某250型新开发摩托车车架为例,通过建立其整车动力学和灵敏度分析模型,进行该车车架的动态灵敏度分析,找出对车架振动响应影响较大的敏感设计参数,并通过修改敏感设计参数降低某些测点的振动响应,从而验证该方法的可靠性和实用性。同时也为其它复杂结构的灵敏度分析提供了一种可借鉴的方法。Sensitivity analysis of motorcycle frames is useful for improving the design success rate. Based on sensitivity analysis theory and using the Monte Carlo and numerical simulation methods, a new 250-type integral motorcycle model was built and dynamic sensitivity analysis conducted. Sensitive design parameters that have great influence on frame vibration were discovered. By modifying the values of sensitive design parameters, the vibration of some measuring points was reduced. This reduction shows that the sensitivity analysis method is reliable and practical, and it can be used in sensitivity analyses of other complicated structures.

关 键 词：蒙特卡罗法 摩托车车架 灵敏度 

分 类 号：U483[交通运输工程—载运工具运用工程]