包括面内动态特性的UniTire轮胎模型  

UniTire tire model including in⁃plane dynamic characteristics

作　　者：郭孔辉[1] 黄世庆 吴海东[1] 卢荡[1] GUO Kong-hui;HUANG Shi-qing;WU Hai-dong;LU Dang(State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China)

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2023年第12期3305-3313,共9页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51775224,52172366)。

摘　　要：将轮胎低频操稳模型与高频耐久模型进行统一,提出了包括面内动态特性的UniTire轮胎模型。稳态UniTire是轮胎动态系统的零频输出,当轮胎运动输入信号频率无限大时,轮心力的输出为零,以此为边界条件,建立了轮胎动态系统的传递特性。考虑到整车虚拟试验场仿真中轮心的载荷历程主要受轮胎刚性环模态影响,即平面内频率小于100 Hz,平面外小于60 Hz,更高的频率成分对轮心的载荷分析贡献不大,故建立了满足边界条件的二阶传递模型。本文模型不追求特定输入下轮胎输出的精确数值,模型参数少、容易辨识,满足频域边界条件,体现了主要频带信号的传递特性。最后,利用典型轮胎动态试验数据进行轮胎模型参数辨识和试验验证。结果表明,本文模型能够准确地表达轮胎面内动态特性。The tire low-frequency handling model and the high-frequency durability model were unified,and the UniTire tire model including in-plane dynamic characteristics was proposed.The steady-state UniTire is the zero-frequency output of the tire dynamic system.When the frequency of the tire motion input signal is infinite,the output of the wheel center force is zero.Using these as boundary condition,the transfer characteristics of the tire dynamic system are established.Considering that in the simulation of the vehicle virtual proving ground(VPG),the load history of the wheel center is mainly affected by the rigid ring modes of the tire,that is,the in-plane frequency is less than 100 Hz,and the out-of-plane frequency is less than 60 Hz.Higher frequency components contribute to the load analysis of the wheel center indistinctively,so a secondorder transfer model that satisfies the boundary conditions is established.Finally,using typical tire dynamic test data,the tire model parameter identification and test verification are carried out.The comparison results show that the proposed model can accurately express the in-plane tire dynamic characteristics.

关 键 词：车辆工程 耐久模型 轮胎 动态特性 宽频带 

分 类 号：U463.34[机械工程—车辆工程]