轮胎横向花纹沟噪声影响因素的剖析

运用Abaqus对具有横向花纹沟的轮胎滚动进行有限元分析，提取不同速度、气压、载荷、摩擦系数条件下的轮胎花纹沟表面在轮胎接地过程中位移-时间的变形曲线。为分析横向花纹沟的泵吸噪声，建立单个横向花纹沟及其周围的空气域有限元模型，在沟表面加载位移-时间变形曲线，利用FSI方法分析速度、气压、载荷、摩擦系数等使用因素对横向花纹沟泵吸噪声的影响。结果表明：泵吸噪声随着速度和载荷的增大而增大；气压变化均会使泵吸噪声增大；而摩擦系数对泵吸噪声影响不明显。验证FSI方法分析轮胎泵吸噪声是可行的，对后续低噪声轮胎使用和花纹设计具有一定的指导作用。

Analysis on Tire Lateral Pattem Ditch Noise Influence Factor

A tire model which has lateral pattern groove was established by virtual of ABAQUS software and extracting the deformation curve of one groove＇s surface in the simulation process. A single groove and its ambient air field were established, loading the deformation displacement on the groove＇s surface. By means of FSI method, pumping noise was simulated with changing tire＇s velocity, pressure, load and friction coefficient. The results show that the SPL of noise increases as tire velocity increases, the SPL of noise increases as load increases, the SPL of noise increases as pressure changes, the SPL of noise doesn＇t change significantly as friction coefficient increasing. It shows that FSI method is feasible in analyzing tire pumping noise.