移线工况下考虑抖动的摩托车前悬架优化分析  

Optimization Analysis of Motorcycle Front Suspension System Considering Wobble in Line Shifting Condition

作　　者：冉险生[1] 罗领 赵洪亮 陈凯 RAN Xiansheng;LUO Ling;ZHAO Hongliang;CHEN Kai(School of Mechanical&Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China;Chongqing Zongshen Innovation Technology Research Institute Co. , Ltd. , Chongqing 400054, China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074 [2]重庆宗申创新技术研究院有限公司,重庆400054

出　　处：《兵器装备工程学报》2021年第9期298-302,共5页Journal of Ordnance Equipment Engineering

基　　金：重庆市博士后科研项目(Xm2017116)。

摘　　要：针对摩托车在移线工况下的行驶稳定性,建立了人-车系统模型,在移线工况下进行仿真,以表征抖动的转向系质心位置侧倾角速度和转向系横摆角速度为优化目标,对前悬架系统相关设计参数进行灵敏度分析,根据分析结果进行多目标优化,对比分析优化前后的响应验证方案的合理性。结果表明,优化后的转向系质心位置侧倾角速度和横摆角速度分别减少25.6%、31.5%,摩托车行驶稳定性明显提高。An optimization scheme was proposed to solve the stability of motorcycle driving under line shifting conditions.A human-vehicle system model was established,and simulations was done under line shifting conditions.The steering system’s center of mass position roll angle velocity and steering system yaw rate are the optimization objectives to characterize the wobble,the sensitivity analysis of suspension system design parameters was carried out.Multi-objective optimization based on the analysis results.The response before and after optimization was compared and analyzed to verify the rationality of the scheme.The results show that the optimization targets are reduced by 25.6%and 31.5%respectively,and the driving stability of the motorcycle is significantly improved.

关 键 词：摩托车 抖动 移线工况 灵敏度分析 多目标优化 

分 类 号：U483[交通运输工程—载运工具运用工程]