Magnetic and Structural Finite Element Analysis of Rotor Vibrations Due to Magnetic Forces in IPM Motor

Kim, Doyeon; Song, Jeong Hwan; Jang, Gunhee

doi:10.1109/tmag.2013.2285386

Cited by 9 publications

(6 citation statements)

References 11 publications

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“…These coefficients allow for the calculation of residual flux density and coercive force at a specific temperature based on their values at the reference tempera-ture. Here, B r (T) and B r (T 0 ) represent the residual flux density at temperatures T and T 0 , respectively [21].…”

Section: Electromagnetic Characteristics Of Permanent Magnetsmentioning

confidence: 99%

“…temperature. Here, 𝐵 (𝑇) and 𝐵 (𝑇 ) represent the residual flux density at temperat 𝑇 and 𝑇 , respectively [21].…”

Section: Electromagnetic Characteristics Of Permanent Magnetsmentioning

confidence: 99%

“…The impact of radial harmonics with low mode numbers on vibration was investigated in [19], while vibration reduction was achieved through modal analysis optimization of the stator, rotor, and housing shell of a PMSM [20]. The consideration of both mechanical bearing vibration and electronic vibration was addressed in [21]. The influence of current harmonics on vibration and noise was analyzed in [22], and an increase in switching frequency was claimed to suppress vibration [23].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Vibration and Noise in a Permanent Magnet Synchronous Motor Based on Temperature-Dependent Characteristics of Permanent Magnet

Kim,

Yun,

Lee

et al. 2023

Energies

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Interior permanent magnet synchronous motors (IPMSMs) are widely utilized due to their high power density. However, noise and vibration issues are often encountered in these motors. While researchers have extensively investigated individual aspects such as noise, vibration, and heat generation in PMSMs, there has been a lack of comprehensive studies examining the interrelationships among these factors. In this paper, a novel approach is proposed for predicting vibration by considering the radial force in the air gap as the exciting force, while also accounting for the changes in the permanent magnet (PM) characteristics caused by heat generation during motor operation. The method involves decomposing and identifying vibration components associated with each vibration mode and predicting noise based on the sound radiation efficiency of each mode. By constructing a vibration map based on current and temperature at a specific frequency, the components most affected by current variations and PM characteristics can be identified. This allows for the proposal of design improvements aimed at reducing vibration. Furthermore, by comparing the vibration map with the noise map, it is confirmed that vibration serves as a source of noise and influences its generation. However, it is found that vibration and noise are not strictly proportional. Overall, a comprehensive analysis of the correlations between vibration, noise, and other factors in IPMSMs is presented in this study. The proposed method and findings contribute to the understanding of the complex dynamics involved and provide valuable insights for the design of quieter and more efficient motor systems.

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Section: Electromagnetic Characteristics Of Permanent Magnetsmentioning

confidence: 99%

“…temperature. Here, 𝐵 (𝑇) and 𝐵 (𝑇 ) represent the residual flux density at temperat 𝑇 and 𝑇 , respectively [21].…”

Section: Electromagnetic Characteristics Of Permanent Magnetsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Vibration and Noise in a Permanent Magnet Synchronous Motor Based on Temperature-Dependent Characteristics of Permanent Magnet

Kim,

Yun,

Lee

et al. 2023

Energies

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“…The electromagnetic vibration of the PM motor is investigated using the theory of magnetism-solid coupling, as it is necessary to consider both the distribution of electromagnetic force and the structural modal of the motor [2]. The harmonic of magnetic force is one of the main causes of electromagnetic vibration; as such, its accurate calculation is the key to vibration analysis and optimization [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Vibration Analysis and Slot–Pole Structural Optimization for a Novel Integrated Permanent Magnet In-Wheel Motor

Wang

Zhao

et al. 2020

Energies

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This paper presents a novel integrated permanent magnet (PM) in-wheel motor (IWM) driving system for electric vehicles (EVs), in order to overcome the disadvantages of electromagnetic vibration and cogging torque in the topology scheme, on the basis of maintaining high output torque. Firstly, the transient magnetic field of the integrated PM motor is analyzed using the improved analytical subdomain model and finite element (FE) model. The harmonic component of magnetic force density (MFD) is obtained with no-load condition. Furthermore, the vertical dynamic model for the dynamic vibration absorber is established to investigate the influence of the magnetic force harmonic on the vibration response of the stator and rotor. On this basis, the multi-objective optimization design of the pole–slot structure parameters is carried out by using the adaptive weighted particle swarm optimization (AWPSO) algorithm. Finally, the optimization results are compared and verified by FE analysis. The investigation shows that the unbalanced magnetic force and cogging torque is significantly reduced by the adjustment of the pole-arc coefficient, PM thickness, stator slot width and slot opening width.

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“…In recent years, micro-electromechanical system (MEMS)-based accelerometers have become a popular solution for monitoring vibrations in industry applications, since they are inexpensive, small, lightweight, and have low power consumption. (7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) To name a few, Maruthi and Hegde used a MEMS accelerometer to detect and analyze vibrations generated from multiple faults in roller element bearings of a three-phase induction motor under no load, single phase, and unbalanced voltage conditions. The experimental results demonstrate that the fault frequencies in the motor vibration spectrum can be determined by fast Fourier transform (FFT) and used to diagnose multiple faults in the bearings.…”

Section: Introductionmentioning

confidence: 99%

Vibration Measurement and Suppression for Laser Galvanometers Using a Micro-electromechanical System-based Accelerometer

Chou¹,

Hsu²,

Yang³

et al. 2018

Sensors and Materials

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In this study, we develop a vibration measurement, analysis, and suppression system for laser galvanometers. A galvanometer control system integrates a notebook computer, an intelligent motion control platform (IMP-2), a servo driver circuit, and a galvanometer driver module for driving laser galvanometers. The proposed vibration measurement, analysis, and suppression system composed of a micro-electromechanical system (MEMS) piezoelectric accelerometer, the fast Fourier transformation (FFT) algorithm operated on a notebook computer, and an analog comb filter circuit is utilized to measure, analyze, and suppress vibrations generated from the mirror-installed galvanometer motors during rotation motions, respectively. First, we use the MEMS-based accelerometer to measure and record the vibration signals from the mirror-installed galvanometer motors during rotation motions. Second, we carry out the frequency spectrum analysis of vibration acceleration signals using the FFT algorithm. Subsequently, we design an efficient analog comb filter on the basis of the observed harmonic or resonance frequencies for suppressing the galvanometer vibrations. Finally, on the basis of the experimental results, we successfully validate that the proposed inertial-sensing-based vibration measurement, analysis, and suppression system can measure and analyze the galvanometer vibrations, and suppress them effectively to improve the accuracy and stability of the laser galvanometer scanning systems.

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Magnetic and Structural Finite Element Analysis of Rotor Vibrations Due to Magnetic Forces in IPM Motor

Cited by 9 publications

References 11 publications

Analysis of Vibration and Noise in a Permanent Magnet Synchronous Motor Based on Temperature-Dependent Characteristics of Permanent Magnet

Analysis of Vibration and Noise in a Permanent Magnet Synchronous Motor Based on Temperature-Dependent Characteristics of Permanent Magnet

Electromagnetic Vibration Analysis and Slot–Pole Structural Optimization for a Novel Integrated Permanent Magnet In-Wheel Motor

Vibration Measurement and Suppression for Laser Galvanometers Using a Micro-electromechanical System-based Accelerometer

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