齿形对汽车同步带传动噪声的影响规律研究  

Study on the influence of tooth profile on the noise of automotive synchronous belt transmission

作　　者：陈思思 徐广晨[1] CHEN Sisi;XU Guangchen(Mechanical and Power Engineering College, Yingkou Institute of Technology, Yingkou 115014, China)

机构地区：[1]营口理工学院机械与动力工程学院,辽宁营口115014

出　　处：《重庆理工大学学报（自然科学）》2022年第2期266-271,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：辽宁省自然科学基金指导计划项目(2018011261-301)。

摘　　要：为研究齿形对同步带传动噪声的影响规律,以齿形为ZA和RU型汽车同步带为研究对象。首先建立了2种齿形同步带的振动仿真模型,求解横向振动频响曲线,以振动频响结果作为边界元条件,进行了同步带两轮传动的声学仿真分析,通过仿真获得场点频域曲线和噪声分布云图。然后基于声阵列技术搭建同步带传动噪声源识别装置,并进行转速对2种齿形同步带噪声影响规律的试验研究,得到不同转速下同步带传动噪声的噪声分布云图。最后通过试验与仿真结果对比得出,在共振区,不同齿形的共振发生频率不同;在非共振区,噪声幅值随转速的增加而增大,且RU型同步带传动噪声比ZA型同步带传动噪声高约4 dB。In order to study the influence of tooth profile on the transmission noise of synchronous belt,the synchronous belt of ZA and RU type are taken as the research object.Firstly,the vibration simulation model of two kinds of synchronous belts is carried out to solve the frequency response curve of transverse vibration.The vibration response results obtained from harmonic response analysis are used as acoustic boundary element conditions to establish the noise simulation model of two pulleys drive of the synchronous belt.Then,a noise source identification device for synchronous belt transmission is built based on the sound array technology,and the influence of speed on the noise of two kinds of synchronous belt is tested.In the end,through the comparison of test and simulation results,it is concluded that the resonance frequency of different tooth profiles is different in the resonance region.In the non-resonant region,the noise increases with the increase of rotational speed,and the transmission noise of RU type synchronous belt is about 4 dB higher than that of ZA type synchronous belt.

关 键 词：齿形对比 声学仿真 声阵列技术 

分 类 号：TH132.32[机械工程—机械制造及自动化]