利用试验模态参数建立轮胎非稳态侧偏模型  

Modeling of Non-steady State Tire Cornering Properties by Experimental Modal Parameters

作　　者：尚进[1] 管迪华[1] 任礼行[2] 

机构地区：[1]清华大学汽车安全与节能国家重点实验室 [2]香港理工大学

出　　处：《汽车工程》2000年第3期145-149,共5页Automotive Engineering

基　　金：吉林工业大学汽车动态模拟国家重点实验室开放基金

摘　　要：在对轮胎垂直特性和稳态侧偏特性建模的基础上,利用由轮胎模态试验提取的试验模态参数建立了轮胎非稳态侧偏模型。该模型考虑了印迹的动态变形和胎宽的影响,对印迹进行离散化并初步计入了速度对非稳态特性的影响,推导出侧向力和回正力矩关于侧向位移和摆动角的传递函数的解析公式,可以计算不同载荷下的非稳态特性,计算结果与文献中的试验结果相符。建模和计算结果说明利用试验模态参数可以方便地建立轮胎的非稳态模型,并可以直接计算出不同工况下的轮胎动态特性。Based on tire models of vertical and steady state cornering properties, this paper establishes a non-steady state tire cornering model with experimental modal parameters extracted from modal experiments. Considering the effects of dynamic deformation of tire contact patch and the tire width, the analytical formulas for calculating non-steady state properties are derived with contact patch discretized and the effect of velocity considered. The calculated results under different loads tally with that of experiments in cited references. Modeling and calculate results show that using experimental modal parameters can easily establish tire properties models and calculated tire dynamic properties under various conditions.

关 键 词：试验模态参数 非稳态 侧偏模型 轮胎 

分 类 号：U463.3[机械工程—车辆工程]