Instability and Imbalance Response of Large Induction Motor Rotor by Unbalanced Magnetic Pull-Reference-Cited by-同舟云学术

Instability and Imbalance Response of Large Induction Motor Rotor by Unbalanced Magnetic Pull

Published:2004-03 Issue:3 Volume:10 Page:447-460
ISSN:1077-5463
Container-title:Journal of Vibration and Control
language:en
Short-container-title:Journal of Vibration and Control

Author:

Yang Bo-Suk¹,Kim Yong-Han¹,Son Byung-Gu²

Affiliation:

1. School of Mechanical Engineering, Pukyong National University, San 100 Yongdang-Dong, Nam-Gu, Busan 608-739, South Korea

2. Research Institute, Nada S & V Co., Ltd, 1545-7, Seacho-Dong, Seacho-Gu, Seoul 137-070, South Korea

Abstract

This paper deals with a general analytical method for analyzing the instability and mechanical imbalance response of induction motors considering unbalanced electromagnetic forces produced in the induction motors with rotor eccentricity and phase unbalance. The equations to be solved are a set of second-order differential equations that give matrices with periodic coefficients that are a function of time due to the unbalanced electromagnetic force. The evaluation method of rotor instability zones is presented by a time transfer matrix method. The Newmark β method is adapted to solve for an imbalance response. A practical application is given for a large induction motor. The results show that the proposed method is satisfactory.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Mechanics of Materials,Aerospace Engineering,Automotive Engineering,General Materials Science

Link

http://journals.sagepub.com/doi/pdf/10.1177/1077546304039132

Reference5 articles.

1. Belmans, R.et al. 1987, “Influence of unbalanced magnetic pull on the radial stability of flexible shaft induction motor,” IEE Proceedings, Part B 134(2), 101-109 .

2. Bradford, M. 1968, “Unbalanced magnetic pull in a 6-pole induction motor,” IEE Proceedings 115(11), 1619-1627 .

3. Calculation of unbalanced magnetic pull in small cage induction motors with skewed rotors and dynamic rotor eccentricity

4. The Noise-Producing Characteristics of Highly Loaded, Valveless, Pulse Combustors

5. Kanzaki, H.et al. 1994, “Unstable vibration of an induction motor,” Transactions of JSME 60(578), 6-12 (in Japanese).

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