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首页> 外文期刊>Mathematical Problems in Engineering: Theory, Methods and Applications >Bifurcation and Nonlinear Dynamic Analysis of Externally Pressurized Double Air Films Bearing System
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Bifurcation and Nonlinear Dynamic Analysis of Externally Pressurized Double Air Films Bearing System

机译:外部加压双空气膜轴承系统的分叉和非线性动力学分析

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This paper studies the chaotic and nonlinear dynamic behaviors of a rigid rotor supported by externally pressurized double air films (EPDAF) bearing system. A hybrid numerical method combining the differential transformation method and the finite difference method is used to calculate pressure distribution of EPDAF bearing system and bifurcation phenomenon of rotor center orbits. The results obtained for the orbits of the rotor center are in good agreement with those obtained using the traditional finite difference approach. The results presented summarize the changes which take place in the dynamic behavior of the EPDAF bearing system as the rotor mass and bearing number are increased and therefore provide a useful guideline for the bearing system.
机译:本文研究了由外部加压双空气膜(EPDAF)轴承系统支撑的刚性转子的混沌和非线性动态行为。 结合差分变换方法和有限差分方法的混合数值方法用于计算转子中心轨道的EPDAF轴承系统的压力分布及分岔现象。 对转子中心的轨道获得的结果与使用传统有限差异方法获得的那些吻合良好。 呈现的结果总结了在转子质量和轴承数量增加的EPDAF轴承系统的动态行为中发生的变化,因此为轴承系统提供了一种有用的准则。

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