多楔带横向振动噪声仿真分析与试验研究  

Simulation Analysis and Experimental Study on Transverse Vibration and Noise of V-ribbed Belt

作　　者：史尧臣[1] 宁凯 唐武生[1] 尹春梅 SHI Yaochen;NING Kai;TANG Wusheng;YIN Chunmei(School of Mechanical and Vehicle Engineering,Changchun University,Changchun 130022,China)

机构地区：[1]长春大学机械与车辆工程学院,长春130022

出　　处：《机械科学与技术》2022年第6期857-861,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：吉林省科技厅自由探索重点项目(YDZJ202101ZYTS150);吉林省发改委项目(2019C040-1)。

摘　　要：为了对多楔带的横向振动和噪声进行研究,分析了汽车多楔带传动振动噪声的产生机理。采用弦模型建立了带横向跨度的振动微分方程,求解了带段横向振动的固有频率。针对两轮6PK多楔带传动系统利用谐响应分析了振动边界条件,采用声学边界元求解了关键场点的频响曲线和声压分布云图。基于声阵列测量原理进行了两轮多楔带传动系统横向振动和噪声的测试试验。仿真与试验结果表明当弹性滑动引起的激励频率与带跨度区域的固有频率耦合时会在带跨度中间位置引起尖锐的共振噪声。In order to study the transverse vibration and noise of the V-ribbed belt,the mechanism of vibration and noise of the V-ribbed belt transmission is analyzed.Based on the string model,the differential equation of the transverse vibration of the belt is established,and the natural frequency of the transverse vibration of the belt is solved.For the two-wheel 6PK V-ribbed belt drive system,the vibration boundary conditions are solved by harmonic response analysis,and the frequency response curves and sound pressure distribution nephogram of key field points are solved by acoustic boundary element method.Based on the principle of acoustic array measurement,the transverse vibration and noise of two-wheel multi wedge belt drive system is tested.The simulation and experimental results show that when the excitation frequency caused by elastic sliding is coupled with the natural frequency of the span region,the sharp resonance noise will occur in the middle of the span region.

关 键 词：多楔带 横向振动噪声 声源识别 声学边界元 试验研究 

分 类 号：TH132.32[机械工程—机械制造及自动化]