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国外文献 > 1.轴承 > 2. 轴承类型与部件 > 核心部件

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标 题： A NUMERICAL STUDY ON THE EFFECT OF UNBALANCE AND MISALIGNMENT FAULT PARAMETERS IN A RIGID ROTOR LEVITATED BY ACTIVE MAGNETIC BEARINGS
主动磁悬浮轴承支撑刚性转子中不平衡与不对中故障参数影响的数值研究
作 者： Prabhat Kumar
Rajiv Tiwari
关键词： Rotor  [转子]
Active magnetic bearing  [ 主动磁悬浮轴承]
Misalignment  [ 不对中]
Unbalance  [ 失衡]
Non-dimensional response  [ 无量纲响应]
出版年： 2019
文集名： Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics
压缩机、风机和泵； 涡轮机； 传热； 结构与动力学
会议名： 2019 ASME Gas Turbine India Conference (GTINDIA 2019)
2019年ASME燃气轮机印度会议（GTINDIA 2019）
届 次：
摘 要： This paper focusses on analysing the vibration behaviour of a rigid rotor levitated by active magnetic bearings (AMB) under the influence of unbalance and misalignment parameters. Unbalance in rotor and misalignment between rotor and both supported AMBs are key fault parameters in the rotor system. To demonstrate this dynamic analysis, an unbalanced rigid rotor with a disc at the middle levitated by two misaligned active magnetic bearings has been mathematically modelled. One of the novel concepts is also described as how the force due to active magnetic bearings on the rigid rotor is modified when the rotor is parallel misaligned with AMBs. With inclusion of inertia force, unbalance force and force due to misaligned AMBs, the equations of motion of the rigid rotor system are derived and converted into dimensionless form in terms of various non-dimensional system and fault parameters. Numerical simulations have been performed to yield the dimensionless rotor displacement and controlling current responses at AMBs. The prime intention of the present paper is to study the effect on the displacement response of the rigid rotor system and the current consumption of AMBs for different ranges of disc eccentricities and rotor-AMB misalignments.

本文重点分析了在不平衡和偏心参数影响下，由主动磁悬浮轴承（AMB）支撑的刚性转子的振动行为。转子的不平衡以及转子与两个支撑AMB之间的偏心是转子系统中的关键故障参数。为验证该动态分析，本文对一个带有中间圆盘、由两个偏心主动磁悬浮轴承支撑的不平衡刚性转子进行了数学建模。文中还提出了一种新概念，即当转子与AMB发生平行偏心时，主动磁悬浮轴承对刚性转子产生的力如何变化。结合惯性力、不平衡力以及偏心AMB产生的力，推导出刚性转子系统的运动方程，并将其转化为以多种无量纲系统参数和故障参数表示的无量纲形式。通过数值模拟，得到了AMB处无量纲转子位移及控制电流响应结果。本文的主要目的是研究不同盘片偏心量和转子-AMB不对中情况下的刚性转子系统位移响应及AMB电流消耗的影响。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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