摘要
通过变刚度横置板簧悬架模型设计,板簧刚度可实现9倍范围变化,FSAE赛车可实现16种变刚度底盘特性组合;弯道仿真表明,FSAE赛车前后悬架不同刚度组合均可降低整车质心高度,提升稳定性,其中BB刚度组合性能改善最为明显,车身高度降低81.18mm,整车横摆角速度指标提升35.39%,侧向加速度指标提升57.50%;横置板簧与车身及下控制连接处添加衬套后,可有效改善实验初期震荡现象;板簧结构优化后,质量减少24.00%,稳定性指标微幅提升,但仿真过程伴有较小的震荡现象。
A new modeling variable stiffness of leaf-spring suspension system is designed. Under the plate spring stiffness within 9 times wider change ranges,FSAE racing car can present 16 kinds combination form of variable stiffness chassis. The simulation of FSAE racing car on corners shows that different stiffness combinations of the front and rear suspension can reduce the height of the vehicle’s center of mass and improve its stability. The BB stiffness combination performance is the most obvious improvement,with the height of the vehicle reduced by 81.18 mm,the vehicle’s yaw angular velocity index increased by 35.39%,and the lateral acceleration index increased by 57.50%. Adding bushing to the joint between plate spring andlower control bodycan effectively improve the vibration phenomenon at the beginning of the experiment. Based on optimizing structure,the mass of the spring decreased by 24.00%,and the stability index increased slightly.
作者
王孝鹏
WANG Xiao-peng(School of Mechanical&Electronic Engineering,Sanming University,Fujian Sanming365004,China;Engineering Res-earch Center in Fujian Province University for Modern Mechanical Design and Manufacturing Technology,Fujian Sanming 365004,China)
出处
《机械设计与制造》
北大核心
2020年第1期9-13,共5页
Machinery Design & Manufacture
基金
福建省自然科学基金项目（2016J01741）
福建省中青年教师教育科研专项（JAT170529）
关键词
横置板簧悬架
变刚度
稳定性
衬套
轻量化
Leaf-Spring Suspension
Variable Stiffness
Stability
Bushing
Lightweight
