变车载质量下重型车辆ISD悬架平顺性与道路友好性分析  

Ride comfort and road friendliness analysis of ISD suspension for heavy vehicles under variable vehicle mass

作　　者：颜龙 杨晓峰[1] 沈钰杰[1] 何涛[1] 刘雁玲[1] YAN Long;YANG Xiaofeng;SHEN Yujie;HE Tao;LIU Yanling(School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang,Jiangsu 210213,China)

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2022年第4期407-415,共9页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(52072157,52002156);江苏省基础研究计划(自然科学基金)青年基金资助项目(BK20200911);镇江市重点研发计划项目(GY2019006)。

摘　　要：针对重型车辆载质量变化大、易造成道路损伤等问题,建立了重型车辆被动悬架半车模型与重型车辆惯容器-弹簧-阻尼器(inerter⁃spring⁃damper,ISD)悬架半车模型.利用改进蚁群算法优化了重型车辆ISD悬架元件参数.从时域与频域角度,仿真分析了变车载质量条件下重型车辆平顺性和道路友好性作用机理.结果表明:相比于传统被动悬架,重型车辆ISD悬架可以大幅度降低车身加速度、悬架动行程与轮胎动载荷,其中质心加速度均方根值平均改善率为15.08%,道路损伤系数在全簧载率范围内有均匀且明显的下降,其均方根值平均改善率为14.21%;重型车辆ISD悬架在平顺性与道路友好性的综合协调提升方面具有一定优势.To solve the problems of heavy vehicle with load variation and road damage,the heavy vehicle passive suspension half⁃car model and the heavy vehicle inerter⁃spring⁃damper(ISD)suspension half⁃car model were established respectively.The heavy vehicle ISD suspension component parameters were optimized by the improved ant colony algorithm.According to time domain and frequency domain,the action mechanism of heavy vehicle ride comfort and road friendliness under the condition of variable vehicle mass was simulated and analyzed.The results show that compared with the traditional passive suspension,ISD suspension of heavy vehicle can greatly reduce the body acceleration,suspension working space and dynamic tire load.The root mean square value of centroid acceleration is improved by 15.08%,and the road damage coefficient is decreased uniformly and significantly in the range of full spring load rate with the root mean square value improved by 14.21%.ISD suspension of heavy vehicle has certain advantages for the comprehensive and coordinated improvement of ride comfort and road friendliness.

关 键 词：重型车辆 ISD悬架 变车载质量 平顺性 道路友好性 

分 类 号：U463.33[机械工程—车辆工程]