旋转式车门质心位置对最小关门速度的影响  

Influence of Centroid Position of Side Swinging Vehicle Door to Minimum Closing Speed

作　　者：周双 钟利萍[1] 张立强[1] 陈梓铭 周五峰 周泽云 ZHOU Shuang;ZHONG Liping;ZHANG Liqiang;CHEN Ziming;ZHOU Wufeng;ZHOU Zeyun(College of Mechanical and Electrical Engineering,Central South University of Forestry and Technology,Changsha 410004,China;State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China;Chang'an Oushang Automobile Institute,Chongqing 400023,China)

机构地区：[1]中南林业科技大学机电工程学院,湖南长沙410004 [2]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082 [3]长安欧尚汽车研究院,重庆400023

出　　处：《湖南科技大学学报（自然科学版）》2022年第1期69-75,共7页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：湖南省自然科学基金资助项目(2018JJ2681);湖南省高校科技创新团队支持计划资助。

摘　　要：针对SUV车型后门最小关闭速度明显高于前门的问题,采用仿真和实验相结合的方法研究车门质心位置对最小关门速度的影响.首先,通过ADAMS软件平台搭建V01,V02和V03这3款SUV车型的前后门多体动力学模型,得到了各车型前后门的最小关门速度,结合实车试验验证了多体动力学模型的可靠性和准确性.然后,基于V01车型前门的多体动力学仿真,分析车门质心位置沿车长、车宽和车高方向偏移对最小关门速度的影响.结果表明:与沿车宽和车高方向偏移相比,车门质心沿车长方向对最小关门速度的影响最大.当沿车尾方向偏移时最小关门速度逐渐降低,偏移0.03,0.06和0.08 m的最小关门速度分别降低4.3%,12.1%和14.1%;当沿车头方向偏移时最小关门速度逐渐增加,偏移0.03,0.06和0.08 m的最小关门速度分别增加6.7%,10.1%和11.8%.较高的L/L;是3款车型后门最小关闭速度高于前门的根本原因.Aiming at the problem that the minimum closing speed of the rear door of SUV is apparently higher than that of the front door, the influence of centroid position of doors on the minimum closing speed is studied by the method of combining simulation and experiment. Firstly, the multi-body dynamics models of the front and rear doors of three SUV V01, V02 and V03 are built using the ADAMS software platform, and the reliability and accuracy of which are verified based on the minimum closing speed of simulation and experiment. Then, the influence of the centroid position along the length, width and height direction of vehicle to the minimum closing speed is analyzed by the multi-body dynamics simulation of the V01 front door. The results show that the shift of centroid position along vehicle length direction has the greatest influence to the minimum door closing speed as compared with that along vehicle width and height directions. The minimum door closing speed decreases gradually as the centroid position moves toward the rear of vehicle, the minimum closing speeds at offsets of 0.03, 0.06 and 0.08 m decrease by 4.3%, 12.1% and 14.1%, respectively;The minimum door closing speed increases gradually as the centroid position moves toward the front of vehicle, the minimum closing speeds at offsets of 0.03, 0.06 and 0.08 m increase by 6.7%, 10.1% and 11.8%, respectively. The higher L/L;is the root cause of the higher minimum closing speed of the rear doors than that of the front doors.

关 键 词：汽车旋转门 多体动力学模型 最小关门速度 质心位置 偏移 

分 类 号：U463.834[机械工程—车辆工程]