噪声与振动控制

噪声与振动控制 ›› 2019, Vol. 39 ›› Issue (2): 122-127.DOI: 10.3969/j.issn.1006-1355.2019.02.024

• 运载工具振动与噪声 • 上一篇    下一篇

汽车钢板弹簧动力学建模及应用研究

杨超，刘夫云，赵亮亮，王秋花，张秋峰   

  1. （ 桂林电子科技大学  机电工程学院，广西  桂林  541004 ）
  • 收稿日期:2018-06-27 修回日期:2018-08-10 出版日期:2019-04-18 发布日期:2019-04-18
  • 通讯作者: 杨超

 Dynamic Modeling and Application Research of  Automobile Leaf Springs

杨超 赵亮亮张秋峰   

  • Received:2018-06-27 Revised:2018-08-10 Online:2019-04-18 Published:2019-04-18
  • Contact: 杨超 赵亮亮张秋峰

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摘要：

摘 要：针对传统的钢板弹簧动力学模型在整车平顺性仿真分析时，存在的仿真精度低、未考虑运动特性等问题。本文对钢板弹簧的动态特性对整车平顺性的影响进行研究。根据运动学理论，推导钢板弹簧的运动学特性计算公式，并分析钢板弹簧的运动特性对其弹性恢复力和阻尼力的影响；利用Hyper Mesh和ANSYS建立钢板弹簧的三维有限元模型，并将该模型导入基于Adams建立的整车动力学模型。对整车动力学模型进行平顺性仿真分析，结果表明：采用钢板弹簧模型与减震器模型的整车平顺性仿真结果与实车测试结果的最大误差分别为14.67%、30.48%；本文建立的钢板弹簧模型比单纯将钢板弹簧简化为具有静刚度和阻尼的减震器模型，其平顺性仿真结果与实际更为接近。

关键词: 振动与波, 钢板弹簧, 运动特性, 动力学模型, 随机路面, 平顺性

Abstract:

Abstract: In view of the traditional leaf spring dynamics model in the vehicle ride comfort simulation analysis, the simulation accuracy is low and the motion characteristics are not considered. This paper studies the influence of the dynamic characteristics of the leaf spring on the ride comfort of the whole vehicle. According to the theory of kinematics, the kinematics formula of the leaf spring is deduced, and the influence of the leaf spring on its elastic restoring force and damping force is analyzed. A three-dimensional finite element model of the leaf spring was established using Hyper Mesh and ANSYS, and this model was introduced into the vehicle dynamics model based on Adams. The ride comfort analysis of the vehicle dynamics model shows that the maximum error of the vehicle ride comfort simulation results and the actual vehicle test results using the leaf spring model and the shock absorber model are 14.67% and 30.48%, respectively. The model of leaf spring established in this paper is more similar to the practical simulation result than that of simply simplifying the leaf spring into a shock absorber model with static stiffness and damping.