Gearbox Low-Noise Design Method Based on Panel Acoustic Contribution
Gearbox Low-Noise Design Method Based on Panel Acoustic Contribution
复制标题
基于面板声学贡献的齿轮箱低噪声设计方法
DOI：
10.1155/2014/850549
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发表时间：
2014-01
影响因子：
--
通讯作者：
Tao Qing
中科院分区：
文献类型：
--
作者：
Zhou Jianxing;Sun Wenlei;Tao Qing
本文提出了一种计算齿轮减速器稳态动态响应和噪声辐射的综合方法。在此过程中，建立了考虑时变啮合刚度、齿轮误差和轴承支承的圆柱齿轮传动系统的动力学模型，并通过求解该模型获得了动态轴承力数据。以轴承力数据为激励，通过数值仿真计算了齿轮箱的振动和噪声辐射，得到了齿轮箱的节点动力响应时程、噪声频谱和共振频率范围。最后计算了齿轮箱面板在共振频率范围内的声学贡献。根据对齿轮箱壁板声学贡献分析的结论和模态振型，研究了两种齿轮箱刚度提高方案。通过对变速箱噪声辐射的对比分析，验证了改进方案的有效性。该研究为齿轮箱的设计提供了理论指导。
This paper presents a comprehensive procedure to calculate steady dynamic response and generated noise radiation from a gear reducer. In this process, the dynamic model of the cylindrical gear transmission system is built in consideration of the time-varying mesh stiffness, gear errors, and bearing supporting, while the data of dynamic bearing force is obtained through solving the model. Furthermore, taking the data of bearing force as the excitation, the gearbox vibrations and noise radiation are calculated by numerical simulation, and then the time history of node dynamic response, noise spectrum, and resonance frequency range of the gearbox are obtained. At last, the gearbox panel acoustic contribution at the resonance frequency range is calculated. According to the conclusions of the gearbox panel acoustic contribution analyses and the mode shapes, two gearbox stiffness improving plans is researched. By contrastive analysis of gearbox noise radiation, the effectiveness of the improving plans are verified. The study provides useful theoretical guideline to the gearbox design.
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