摘要
以谐波和噪声实验为基础,经过数理统计分析,建立轴承滚动表面谐波分布模型,研究谐波分布参数对轴承噪声声压级的影响规律,得出控制噪声的最优谐波控制线方程。为了在工程上应用,特别建立了最优滚动轴承噪声声压级函数。这个函数和谐波分布参数密切相关,是在约束优化的基础上,以最优谐波分布参数和最优噪声为控制点,经过数理统计分析得到的,可以极大地衰减预测误差。对6203轴承和6201轴承的噪声实验研究表明,所给出的最优轴承噪声声压级函数的预测误差很小,不超过2.2 dB。鉴于谐波分布参数可以在机械制造过程中控制,因此,在轴承零件制造过程中控制装配后的成品轴承的噪声将变为现实。
Based on the harmonic and noise experiment, the model of the rolling bearing surface harmonic distribution is established, the harmonic distribution parameters of affecting the sound pressure level of the rolling bearing noise are investigated, and the harmonic control line equations of controlling noise are presented. The function of the optimum sound pressure level of the rolling bearing noise is established especially for applications to engineering. This function has intimate correlation with the harmonic distribution parameters. Based on optimizing the harmonic distribution parameters and noise, this function is obtained by mathematical statistics analysis and considerably reduces the prediction errors. The experimental research on the 6203 bearing and the 6201 bearing shows that the error of this function is very small, less than 2.2 dB. Because the harmonic distribution parameters can be controlled, it shall become reality that the noise of assembled rolling bearings can be controlled in the process of manufacturing.
出处
《声学学报》
EI
CSCD
北大核心
2003年第3期255-261,共7页
Acta Acustica
基金
机械工业部机械工业技术发展基金资助项目(97JA0803)
关键词
滚动轴承
谐波控制
声压级函数
最优谐波控制线方程
噪声控制
Acoustic noise
Acoustic variables control
Errors
Harmonic generation
Noise abatement
Optimization
Statistical methods
