Magnetically induced rotor vibration in dual-stator permanent magnet motors

Xie, Bang; Wang, Shiyu; Wang, Yaoyao; Zhao, Zongci; Xiu, Jie

doi:10.1016/j.jsv.2015.02.033

Cited by 11 publications

(5 citation statements)

References 28 publications

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“…In fact, the distortion is addressed via an axisymmetric ring stator. However, the stator is essentially a rotationally periodic structure subjected to traveling load, just like those in Ouyang (2011), Zhao and Wang (2015) and Xie et al. (2015), which can experience natural frequency splitting and mode distortion (Wang et al., 2010).…”

Section: Resultsmentioning

confidence: 99%

“…For simplicity, this work assumes that the stator has a smooth ring shape instead of a straight line. Since ring models are widely used in the existing literature (Duan et al., 2009; Wang and Sinha, 2013; Huang and Soedel, 1987; Zhao and Wang, 2015; Xie et al., 2015), this section only briefly presents the main derivation. Given the complexities of the electromechanical coupling and geometric topology, the scope is limited to the in-plane deflection under bending moment from the piezoelectric patch on a smooth thin-cylindrical stator.…”

Section: Problem Formulationmentioning

confidence: 99%

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Excitation and distortion of elastic vibration of cylindrical ultrasonic stator

Wang

Xiu

2016

Journal of Vibration and Control

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This work examines the elastic vibration of the ultrasonic stator subjected to piezoelectric bending excitation by focusing on two fundamental issues: general driving rule and vibration distortion. An elastic model of a cylindrical ultrasonic stator is developed by using Hamilton’s principle and solved by analytical approach. The results imply that a desired vibration can be aroused provided that an algebraic relation is satisfied by a suitable parameter combination. Traveling/standing wave is excited by conventional time-spatial voltage ones or even other ones. The relationships between the duty ratio of input voltage and wave distortion are identified as closed-form expression of basic parameters. The excitation’s average creates a stationary deflection but it can be neglected thanks to the sufficiently small amplitude it causes relative to that at the resonance frequency. The rotation reversion is realized by changing the duty ratio or excitation frequency but remarkable distortion and amplitude decrease occur, leading to the asymmetry between the forward and inversion. Main results are validated by the superposition approach and comparisons against the existing ones. Discussions on phasing effect and vibration distortion relative to other symmetric systems are also made. Main contributions are the general driving rule with non-π/2 time-spatial phases and explanations on vibration distortion. These are achieved via the general time-spatial phasing in cyclically symmetric power-transmission systems.

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Section: Resultsmentioning

confidence: 99%

Section: Problem Formulationmentioning

confidence: 99%

Excitation and distortion of elastic vibration of cylindrical ultrasonic stator

Wang

Xiu

2016

Journal of Vibration and Control

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“…Since the models described by the radial and tangential displacements of similar structures have been detailed in the open literature (Cooley and Parker, 2014; Huang and Soedel, 1987a, 1987b; Kim and Chung, 2002; Xie et al., 2015; Zhao et al., 2015), this section simply presents the linear governing equations using the thin-ring assumption as follows …”

Section: Modelingmentioning

confidence: 99%

“…An extensive amount of research has been published on the complete (Cooley and Parker, 2014; Eley et al., 2000; Huang et al., 2013; Kim and Chung, 2002; Lesaffre et al., 2007; Xie et al., 2015) and simplified (Bisegna and Caruso, 2007; Canchi and Parker, 2006a, 2006b, 2008; Huang and Soedel, 1987a, 1987b; Li et al., 2014; Wang et al., 2010, 2016a, 2016b; Wu and Parker, 2006; Ye et al., 2012; Zhang et al., 2014; Zhao et al., 2015) models, where the natural frequency and vibration instability are the two basic concerns. Based on the complete model, Eley et al.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of complete and simplified models in terms of eigenvalues of cyclically symmetric ring structures

Wang

Zhang

Sun

2017

Journal of Vibration and Control

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This work examines the free and parametric vibrations of constrained cyclically symmetric ring structures and compares the restrictions from different modeling assumptions. A complete model and two simplified models are developed by introducing different restrictions on deflections. The eigenvalues are formulated by direct perturbation and mode superposition. The results verify that they are comparable on the condition that the stiffness ratio of the rotating support to ring bending is relatively small. The eigenvalue splitting, parametric instability and their relationships are determined in closed form. The simplified models can correctly predict the splitting behavior before or after the loci veering. Two types of models obtain the same rules governing the instability, but the simplified models cannot accurately approach the time-evolution of the instability. Hence, it needs to be cautious to use the simplified models to estimate the instability behaviors for a cyclically symmetric ring structure with larger stiffness ratios especially within the loci veering range. Main results are verified by numerical calculations.

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Dynamics and nonlinear feedback control for torsional vibration bifurcation in main transmission system of scraper conveyor direct-driven by high-power PMSM

Wang

et al. 2018

Nonlinear Dyn

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Magnetically induced rotor vibration in dual-stator permanent magnet motors

Cited by 11 publications

References 28 publications

Excitation and distortion of elastic vibration of cylindrical ultrasonic stator

Excitation and distortion of elastic vibration of cylindrical ultrasonic stator

Comparison of complete and simplified models in terms of eigenvalues of cyclically symmetric ring structures

Dynamics and nonlinear feedback control for torsional vibration bifurcation in main transmission system of scraper conveyor direct-driven by high-power PMSM

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