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摆动转子压缩机转子系统模态分析

Model Analysis of Rotor System of Swing Compressor
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摘要 运用Solid Works软件建立了摆动转子压缩机的偏心轮轴及电机转子等所组成的转子系统的动力学模型,并利用ANSYS Workbench软件对转子系统进行模态分析,得到其各阶固有频率和振型。分析结果显示现有的摆动转子压缩机转子系统的固有频率偏低,在变频高速工况下会引起较大振动。通过对转子系统增加轴承支撑长度或增加轴承支撑数量,提升其固有频率,降低摆动转子压缩机高速运转时的振幅,并分析了两种方法的减振效果及优缺点,为摆动转子压缩机的设计与优化提供了理论依据。 The dynamic model of rotor system which is consisted of the eccentric shaft and the motor rotor in swing compressor is established by using SolidWorks,and model analysis of rotor system is carried out by using ANSYS Workbench,then the natural frequencies and model shapes can be obtained.The results show that the natural frequency of the current rotor system is to so low that it can cause large shaking under the high speed working conditions.It found that the natural frequency is rose by increasing bearings'support length or its number of bearing,and the amplitude of the swing compressor is reduced when it operates at high speed.Moreover,the damping effect and advantages and disadvantages of this two methods are analyzed,and the research provides theoretical basis and references for the optimization design of the swing compressor.
作者 周盛杰 潘树林 李伟 饶金强 Zhou Shengjie;Pan Shulin;Li Wei;Rao Jinqiang(Guangxi Key Lab.of Petrochemical Resource Processing and Process Intensification Technology,Guangxi University,Nanning,530004)
出处 《制冷与空调(四川)》 2018年第4期351-358,共8页 Refrigeration and Air Conditioning
关键词 摆动转子压缩机 转子系统 有限元 模态分析 swing compressors rotor system finite element model analysis
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