论文同时建立了齿轮传动通用动力学模型，分析了齿轮传动系统中齿轮和轴承等主要零部件的振动和噪声机理。
The paper also sets up the general dynamic model for gear transmission, analyses the vibration and noise principle of the main parts in the gear transmission system like gear and bearing.
分析液压系统产生振动和噪声的基本原因，并介绍减少液压系统噪声的措施。
The reason of vibration and yawp of hydraulic system is analyzed in this paper. And how to reduce is introduced.
分析了滚动轴承产生振动和噪声的原因，介绍了减振降噪的的工艺措施。
The reasons of rolling bearing producing vibration and noise were analyzed, the technology measures of reducing vibration and noise were introduced.
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