摘要
以单级圆柱齿轮减速器为研究对象，综合考虑齿轮时变啮合刚度及误差激励的影响建立了传动系统动力学模型。以轴承动载荷为激励，采用FEM/BEM方法对减速器振动噪声辐射进行了分析，得到了齿轮箱节点动响应时域历程及声场场点噪声谱，论述了激励中各谐波成分对齿轮箱振动噪声辐射的影响。对多工况下齿轮箱振动噪声辐射进行了计算，就转速及负载对减速器振动噪声的影响做出了分析，得到了系统动载荷随转速的变化规律，噪声辐射随负载变化规律以及齿轮箱共振频带分布，为减速器的减振降噪设计提供了理论基础。
Abstract
The dynamic model of the cylindrical gear transmission system is built in consideration of the time-varying mesh stiffness and gear errors. Dynamic load of the bearing is taken as the excitation, Vibration and noise radiation of the gear reducer is researched by using FEM/BEM, then the time history of node vibration displacement and noise spectrum of the gearbox are obtained, and the effect of the excitation of frequency doubling of mesh frequency on the gearbox vibration and noise radiation are illustrated. The effect of input speed and operating load on vibration and noise radiation are researched, then the rule of dynamic load with speed, the rule of noise radiation with load, and the frequency range of the gearbox resonance are obtained. The study provides useful theoretical guideline to the design of the gearbox.
关键词
齿轮箱 /
时变啮合刚度 /
振动 /
噪声
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Key words
Gear Box /
Time-Varying Mesh Stiffness /
Vibration /
Noise
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周建星 刘更 吴立言.
转速与负载对减速器振动噪声的影响研究[J]. 振动与冲击, 2013, 32(8): 193-198
Zhou Jianxing Liu Geng Wu Liyan.
Research on The Effect of Operating Conditions on Vibration and Noise Radiation of a Gear Reducer[J]. Journal of Vibration and Shock, 2013, 32(8): 193-198
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