轮胎阻尼对车辆垂向振动及悬架性能的影响  

Impact of Tire Damping on Vehicle Vertical Vibration and Suspension Performances

作　　者：尤伟 武敬敬 朱博文 王俊霞 You Wei;Wu Jing-jing;Zhu Bo-wen;Wang Jun-xia(Shanxi Engineering Vocational College,Shanxi Taiyuan 030009;China Railway 11TH Bureau Co.,Ltd.,Hubei Wuhan 430061;Taiyuan CRRC Times Rail Engineering Machinery Co.,Ltd.,Shanxi Taiyuan 030027)

机构地区：[1]山西工程职业学院,山西太原030009 [2]中铁十一局集团城市轨道工程有限公司,湖北武汉430061 [3]太原中车时代轨道工程机械有限公司,山西太原030027

出　　处：《内燃机与配件》2024年第20期1-4,共4页Internal Combustion Engine & Parts

基　　金：长安大学中央高校基本科研业务费专项资金项目(300102213515)。

摘　　要：研究了轮胎阻尼对车辆垂向动力学性能的影响。以四分之一车辆为对象,分别考虑轮胎阻尼和忽略轮胎阻尼构建两种分析模型。考虑标准等级随机和简谐两种路面激励,定义了垂向动力学性能评价指标。开展仿真计算,从幅频特性和响应均方根角度探讨了轮胎阻尼的影响。结果表明,对于四分之一车辆模型,轮胎阻尼的耗散能量在系统垂向振动能量中的占比随激励频率和车速的提高而显著增大;轮胎阻尼除直接产生轮胎振动耗散能量外,还会增大总体耗散能量、降低悬架耗散能量及悬架性能指标的数值;轮胎的耗散能量与路面激励带宽关系密切,而对于其他指标如果路面频带包含系统固有频率,则路面带宽的变化对指标数值影响不大,这可部分解释前述结论。The impact of tire damping on vehicle vertical dynamics characteristics was studied.Based on the quarter-car model,two analysis models were constructed when tire damping was considered or neglected.Evaluating indexes were built for both random excitation and harmonic excitation.Numerical examples were conducted to study tire damping impact on the indexes using magnitude-frequency characteristics and response root mean square analysis.The results showed,for the quarter-car model,tire dissipated power will be a big part with the increase of input frequency or vehicle speed;tire damping not only brings tire dissipated power,but also increases the overall dissipated energy,decreases suspension dissipated energy and the values of suspension performance.related evaluating indexes;tire dissipated energy is related to the frequency band of the excitation,while the other indexes are not if the excitation band covers the resonance frequencies of the quarter car model,which can partially explain the aforementioned conclusions.

关 键 词：轮胎阻尼 悬架性能 振动能量 车辆垂向动力学 

分 类 号：TH113.1[机械工程—机械设计及理论]