轻型客方向盘怠速抖动问题的传递路径分析  

Transfer Path Analysis of the Light Bus Steering Wheel Wobbling Problem in Idle

作　　者：方德广[1] 祖庆华[2] 史文库[2] 

机构地区：[1]南京依维柯汽车有限公司产品工程部,江苏南京210028 [2]吉林大学汽车仿真与控制国家重点实验室,吉林长春130022

出　　处：《机械设计与制造》2016年第3期61-64,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51205158);中国博士后科学基金面上资助项目(2013M541294)

摘　　要：通过建立传递路径模型,应用传递路径分析方法针对某轻型客车方向盘怠速抖动进行了传递路径分析。阐述了传递路径分析的理论推导过程以及在实际问题中的应用方法。针对发动机悬置及排气悬吊的各条结构传递路径进行了传递函数获取以及工作载荷的识别,并最终获取了各结构传递路径的贡献量。通过综合考虑贡献量幅值及相位因素并对其进行分析,最终确定了发动机后悬置的X向及Z向对怠速方向盘抖动的贡献量最为突出,为怠速方向盘抖动的改善工作指明了方向。By building the transfer path modal and using the Transfer Path Analysis （ TPA ）theory, light bus steering wheel wobbling problem in idle is analyzed, The theoretical derivation and the practical application of TPA are amplified. The Frequency Response Functions （FRF）of the main structural transfer paths were obtained and the operational forces were calculated, Taking the factor of both amplitude and phase into consideration, the results show that the path of X direction and Z direction of the rear engine mount makes the most contribution, h shows the way of solving steering wheel wobblingproblem in idle.

关 键 词：车辆工程 方向盘 传递路径分析 矢量贡献量 

分 类 号：TH16[机械工程—机械制造及自动化] U461.4[机械工程—车辆工程]