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多层波纹钢板转子阻尼器是利用干摩擦原理实现转子阻尼减振的支撑零件。这种阻尼器能在高低温等恶劣环境下工作,同时阻尼特性受转子偏心影响小,可以通过改变阻尼器钢板的厚度提高阻尼器的能量耗散性能。在有限元法和摩擦学原理的基础上进行理论分析,根据多层波纹钢板转子阻尼器的能量耗散分布,提出多层钢板阻尼器的能量耗散系数的计算方法。该方法首先通过有限元分析获得接触应力,然后采用Mindlin接触模型推导出两层干摩擦接触表面摩擦耗能的计算公式,最后得出转子阻尼器整体的能量耗散系数。试验证明了该计算方法是正确可行的,具有较高计算精度。
Multi-layer corrugated steel rotor damper is the use of dry friction principle to achieve damping rotor damping parts. The damper can work in harsh environments such as high and low temperature, and the damping property is less affected by the eccentricity of the rotor. The damper’s energy dissipation performance can be improved by changing the thickness of the damper plate. Based on the theory of finite element method and tribology, the energy dissipation coefficient of multi-layer steel damper is put forward based on the energy dissipation distribution of multi-layer corrugated steel rotor damper. The method first obtains the contact stress through finite element analysis, and then uses the Mindlin contact model to deduce the friction energy dissipation formula of two layers of dry friction contact surface. Finally, the overall energy dissipation coefficient of the rotor damper is obtained. The experiment proves that the calculation method is correct and feasible and has higher calculation precision.