基于音调度模型的电驱动总成噪声分析  

Noise Analysis of Electric Drive Assembly Based on Tonality Model

作　　者：刘海[1] 张书焓 劳梦泽 李维肖 Liu Hai;Zhang Shuhan;Lao Mengze;Li Weixiao(Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles,Hebei University of Technology,Tianjin 300130)

机构地区：[1]河北工业大学,天津市新能源汽车动力传动与安全技术重点实验室,天津300130

出　　处：《汽车技术》2024年第7期44-48,共5页Automobile Technology

基　　金：河北省引进留学人员资助项目(C20210505)。

摘　　要：为分析低速大扭矩电驱动总成不同频段噪声对烦恼度的贡献,以某低速大扭矩电驱动总成为研究对象,结合心理声学理论建立了电驱动总成音调理论分析模型,考虑到不同频率下音调对主观烦恼度影响程度的差异性,建立修正音调(烦恼度)理论分析模型,并结合噪声源分布特征对比分析了由电驱动总成引起的低频噪声(0~400 Hz)、中频噪声(>400~2500 Hz)和高频噪声(>2500 Hz)的声品质烦恼度,结果表明,影响烦恼度的最重要因素是电磁力波和开关频率引起的噪声,其次为变速器齿轮噪声。In order to analyze the contribution of different frequency bands of noise to the annoyance degree of a low-speed and high-torque electric drive assembly,a low-speed and high-torque electric drive assembly was used as the research object,combined with psychoacoustic theory to establish a tone theory analysis model of the electric drive assembly.The difference in the degree of the influence of the tone on the subjective annoyance at different frequencies of the electric drive assembly was considered,and the theoretical analysis model of the modified tone(annoyance)was established.Combined with the noise source distribution characteristics of the electric drive assembly,the low frequency noise(0~400 Hz),intermediate frequency noise(>400~2500 Hz)and high frequency noise(>2500 Hz)caused by the electric drive assembly were compared and analyzed.The results show that the most important factors affecting the annoyance level are electromagnetic force wave and switching frequency induced noise,followed by transmission gear noise.

关 键 词：电驱动总成 心理声学 音调度 烦恼度 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]