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2010•Bearing Jurnal Penelitian dan Kajian Teknik SipilOpen access

Research on Dynamic Characteristics of Rotor System Supported by AMB Based on ANSYS Modal Analysis

Jian Zhang

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Abstract

The finite element modal analysis of the practical flexible rotor system supported by AMB is carried out according to different groups of parameters.The first 8-order critical speeds and mode shapes are solved respectively.The correctness of the calculation results is tested and verified by the experiments.The calculation results are discussed and the dynamic characteristics of the rotor system supported by AMB are summed up.That is,the bearing-dominated low-order critical speeds and vibration modes are decided by the AMB control channel,and the rotor-dominated high-order critical speeds and vibration modes are in line with the universal law of dynamics characteristics of the conventional bearing rotor system.

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What this paper is about

The finite element modal analysis of the practical flexible rotor system supported by AMB is carried out according to different groups of parameters.The first 8-order critical speeds and mode shapes are solved respectively.The correctness of the calculation results is tested and verified by the experiments.The calculation results are discussed and the dynamic characteristics of the rotor system supported by AMB are summed up.That is,the bearing-dominated low-order critical speeds and vibration modes are decided by the AMB control channel,and the rotor-dominated high-order critical speeds and vibration modes are in line with the universal law of dynamics characteristics of the conventional bearing rotor system.

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Available abstract

The finite element modal analysis of the practical flexible rotor system supported by AMB is carried out according to different groups of parameters.The first 8-order critical speeds and mode shapes are solved respectively.The correctness of the calculation results is tested and verified by the experiments.The calculation results are discussed and the dynamic characteristics of the rotor system supported by AMB are summed up.That is,the bearing-dominated low-order critical speeds and vibration modes are decided by the AMB control channel,and the rotor-dominated high-order critical speeds and vibration modes are in line with the universal law of dynamics characteristics of the conventional bearing rotor system.

Key concepts: Critical speed, Modal analysis, Rotor (electric), Modal, Helicopter rotor, Vibration, Finite element method, Bearing (navigation)

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