基于虚拟试验场技术的汽车悬架缓冲块虚拟调校  

Virtual Tuning of Automobile Suspension Jounce Bumper Based on VPG

作　　者：蔡剑 吴泽勋 车媛媛 贾宝光 李太梅 王德远 Cai Jian;Wu Zexun;Che Yuanyuan;Jia Baoguang;Li Taimei;Wang Deyuan(Chongqing Livan Automobile R&D Institute Co.,Ltd.,Chongqing 401122)

机构地区：[1]重庆睿蓝汽车研究院有限公司,重庆401122

出　　处：《汽车工程师》2024年第1期37-42,共6页Automotive Engineer

摘　　要：基于虚拟试验场(VPG)技术,搭建整车动力学模型及试验场路面模型,针对某车型开展了车身疲劳耐久仿真,针对仿真中发现的车身耐久风险点多且损伤值大的问题进行分析,发现悬架缓冲块载荷过大是车身损伤偏大的直接原因,基于VPG技术对缓冲块进行了虚拟调校,通过增大缓冲块上跳行程减少了缓冲块处于压缩极限的频次,进而降低了车身疲劳损伤。道路耐久试验验证结果表明,优化方案增强了车身耐久性能,并提升了整车舒适性。Vehicle dynamic model and proving ground road model were built based on virtual proving ground(VPG)technology,and body fatigue&durability simulation was conducted,then an analysis were conducted to address the issue of multiple risk points and large damage values in the fatigue simulation of a vehicle project.Ultimately,it was found that excessive load on the suspension jounce bumper was the direct cause of large body damage.Based on VPG technology,virtual tuning was carried out on the jounce bumper,reducing the frequency of the jounce bumper under compression limit by increasing the jounce stoke of the bumper,thus reducing fatigue damage.The road durability test verification shows that the optimization scheme improves body durability performance and vehicle ride comfort.

关 键 词：悬架缓冲块 虚拟试验场 车身耐久 虚拟调校 试验场验证 

分 类 号：U469.72[机械工程—车辆工程]