Study on vibration suppression based on particle damping in centrifugal field of gear transmission
Study on vibration suppression based on particle damping in centrifugal field of gear transmission
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DOI：
10.1016/j.jsv.2015.12.014
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发表时间：
2016-03
影响因子：
4.7
通讯作者：
Wangqiang Xiao;Jiani Li;Sheng Wang;Xiaomeng Fang
中科院分区：
文献类型：
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作者：
Wangqiang Xiao;Jiani Li;Sheng Wang;Xiaomeng Fang
尽管粒子阻尼技术已应用于稳态振动抑制，但由于其非线性阻尼性能和复杂的机理，关于离心场中粒子阻尼器的研究报道较少。在齿轮传动中引入颗粒阻尼技术，可以有效降低齿轮啮合时的振动，特别是在高温、油润滑等恶劣工况下。在本文中，我们探索了齿轮励磁机理，并确定了离心场中转速与齿轮模态参数之间的关系。建立了基于离心场离散元法（DEM）的颗粒阻尼器力学模型。此外，通过将模拟数据与实验数据进行比较，验证了DEM模型。基于该模型，讨论了粒子阻尼器在离心场中的耗能机理以及耗能的计算方法。此外，还分析了粒径对能量耗散特性的影响。研究结果可为齿轮传动减振降噪提供理论指导。
Though particle damping technology has been applied to vibration suppression in steady state, there are few reports about the study of particle dampers in centrifugal fields because of its nonlinear damping performance and complex mechanism. Introducing particle damping technology into gear transmission will effectively reduce the vibration from gear engaging, especially for harsh working conditions, such as high temperature and oil lubrication. In this paper, we have explored the mechanism of gear excitation and determined the relationship between the rotational speed and gear׳s modal parameters in centrifugal fields. A mechanical model of the particle damper based on the discrete element method (DEM) in centrifugal fields has been established. Furthermore, the DEM model has been verified by comparing simulation data with experimental data. Based on the model, we have discussed the particle damper׳s energy dissipation mechanism in centrifugal fields, as well as the calculation method of energy dissipation. Moreover, the influence of the particle size on energy dissipation characteristics has been analyzed. The results can provide theoretical guidance for vibration and noise reduction of the gear transmission.