轮胎花纹泵浦噪声分析及低噪声轮胎花纹设计  

An Analysis of Tire Pumping Noise and Design of Low Noise Structure

作　　者：王国林[1] 沈飞[1] 周海超[1] 杨建[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《广东工业大学学报》2016年第4期51-55,68,共6页Journal of Guangdong University of Technology

基　　金：国家自然科学基金资助项目(51405201);江苏省汽车工程重点实验室开放基金项目资助(QC201303);中国博士后科学基金(2015M571681)

摘　　要：以载重子午线轮胎295/80R22.5为研究对象,建立了分析有限元模型.利用ABAQUS模拟轮胎在路面上滚动的过程,获取接地区域花纹沟体积变化情况,以此作为轮胎泵浦噪声的分析边界条件.然后建立了花纹沟泵浦噪声分析模型,利用流体力学方法(Computational Fluid Dynamics,CFD)对花纹沟的流场特性进行分析.基于FW-H方程,应用LMS声学软件计算花纹沟的泵浦噪声,并确定花纹沟的声源位置.结果表明,花纹沟泵浦噪声主要由花纹沟壁面所受到的动态压力引起,在低马赫数下,偶极子声源占主要成分.在此基础上,提出了花纹降噪结构,花纹泵浦噪声降低了1.73 d B;结果表明,花纹沟壁面的动态压力与花纹的泵浦噪声有明显的相关性.Considering the radial heavy duty tire 295/80R22. 5 as the research objective, a finite element analysis model is established. The volume change behavior of pattern grooves in the contact zone is real-ized by simulating the tire rolling process with software ABAQUS, which is used as the boundary condi-tion of tire pumping noise analysis. On this basis, the flow field characteristics in the pattern grooves is analyzed by using computational fluid dynamics （ CFD） method, and the FW-H equation is applied to calculating the pumping noise, with the sound source location of tire pumping noise confirmed by using LMS acoustic software. Results show that the tire pumping noise is mainly caused by surface fluctuation pressure, and the dipole sound source is the domination in low Mach numbers. On this basis, low noise pattern structure is put forwarded,which significantly reduces noise reaching a low of 1. 73 dB. The result shows that the relationship is obvious between pattern surface fluctuation pressure and tire pumping noise.

关 键 词：有限元 子午线轮胎 泵浦噪声 偶极子声源 数值仿真 

分 类 号：U463.341[机械工程—车辆工程] O35[交通运输工程—载运工具运用工程]