摘要
鉴于Adams/Chassis的Leafspring专业模块本质上是针对传统钢板弹簧的建模,且对板簧端部接触和各片之间摩擦的定义比较粗糙,本文中在采用Leafspring专业模块自动生成钢板弹簧模型的基础上,对其某些部分进行了合理修正和重新定义,获得了平衡悬架钢板弹簧的修正模型,定义了其动刚度,并进行仿真,同时对其实物进行了力学特性试验。最后,分别以动刚度特性的"粘滞现象"和动刚度相对误差为指标,对修正模型和未修正模型的仿真结果与测试数据进行对比和评价。结果表明,本文中的修正模型在大大降低了复杂程度的前提下,达到了较高的分析精度(90%左右),为整车动力学的分析提供了良好的平台。
In view of that the professional module Leafspring in software Adams/Chassis is dedicated for the modeling of traditional leaf spring and is relatively coarse in defining leaf-end contact and interleaf friction,on the basis of automatically creating a leaf spring model with module Leafspring,its certain parts are reasonably modified and redefined to get a modified model for leaf springs of balanced suspension in this paper. Its dynamic stiffness is defined,a simulation is conducted and a corresponding test on its mechanical characteristics is performed. Finally with the ＂ viscous hysteresis＂ of dynamic stiffness characteristics and the relative error of dynamic stiffness as indicators,the simulation results of modified model and original model and corresponding test data are compared and evaluated. The results show that with a greatly reduced complexity,the modified model achieves a high accuracy of about 90 percent,providing a good platform for further analysis of vehicle dynamics.
出处
《汽车工程》
EI
CSCD
北大核心
2016年第2期229-233,共5页
Automotive Engineering
基金
中国第一汽车集团公司技术中心项目(W65-GNZX-2014-0201)资助
关键词
多轴商用车
平衡悬架
钢板弹簧
端部接触
片间摩擦
multi-axis commercial vehicle
balanced suspension
leaf spring
end contact
interleaf friction
