重型商用车驾驶室悬置系统的参数优化  

Parameter Optimization of Heavy Commercial Vehicle Cab Suspension System

作　　者：赵永玲[1] 张淑琴[1] 程兆刚[1] 

机构地区：[1]军械工程学院车辆与电气工程系,河北石家庄050003

出　　处：《机械设计与制造》2015年第2期202-205,共4页Machinery Design & Manufacture

基　　金：江西省教育厅青年科学基金资助项目(GJJ11034)

摘　　要：以某重型商用车驾驶室空气悬置系统的实车参数为基本数据,利用ADAMS软件建立了多体动力学模型,通过与道路试验对比验证了模型的准确性。采用客观评价方法,对驾驶室悬置系统进行了舒适度评价。采用正交试验方法,以驾驶室质心处的垂向加速度功率谱密度曲线峰值最小为优化目标,以驾驶室悬置元件刚度、阻尼为变量,对驾驶室悬置系统进行了优化。从优化前后的对比中可以看出,采用优化后的驾驶室空气悬置参数可使驾驶室的乘坐舒适性有一定程度的提高。A multi-body dynamic simulation model was established using ADAMS and verified by vehicle road test for the air suspension system of a heary commercial vehicle cab, besed on a series of basic data achieved from the relative vehicle. An evaluation of ride comfort was conducted for the cab suspension system through a object evaluation method. Taking the stiffness and the damping parameters of the cab suspension components as variable, the cab suspension system was optimized with the minimum. PSD curve peak value of the vertical acceleration positioned at the mass center of the cab. It can be seen. through a comparison between the results before and after the optimization, that the ride comfort in the cab can be improved with the optimized air suspension parameter.

关 键 词：驾驶室 空气悬置 多体动力学 参数优化 正交试验 功率谱密度 

分 类 号：TH16[机械工程—机械制造及自动化]