Analysis and design of electromagnetic vibration and noise reduction method of permanent magnet motor

Hu, Kai; Zhang, Guangming; Zhang, Wenyi

doi:10.1177/14613484211038405

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…The magnetic coupler has become one of the key research objects among mechanical transmission devices due to its advantages including the simple structure, high transmission efficiency and low carbon emission and energy consumption [1]. The composite magnetic coupler has the advantages of high torque density, small size and high efficiency and therefore gradually evolved as a mechanical flexible transmission device [2,3].…”

Section: Introductionmentioning

confidence: 99%

Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

Wang

Guo

et al. 2023

IET Electric Power Appl

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A new inhibition method was proposed for the problem of harmonic of radial electromagnetic force during the operation of the composite magnetic coupler. In order to suppress its radial electromagnetic force, a radial permanent magnet rotor eccentricity method is proposed, and a three-dimensional finite element model is established. Based on the Maxwell tensor method, the radial electromagnetic force of the composite magnetic coupler is analysed, and the mathematical expression of its radial electromagnetic force is established, Maxwell stress tensor was used to analyse the radial electromagnetic force in a composite magnetic coupler and to establish the mathematical equation for the radial electromagnetic force. In order to suppress the radial electromagnetic force, a method based on rotor eccentricity in a radial permanent magnet was proposed. A prototype of a composite magnetic coupler with a rated power of 5 kW was designed to test its output torque under load. The results showed that the simulated curve was consistent with the tested curve, with a maximum numerical error of 8.9%. The tested values of the output torque before and after eccentricity were compared, and the results showed that the output torque remained basically unchanged after the eccentric structure was adopted and that the torque pulsation was significantly reduced.

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Section: Introductionmentioning

confidence: 99%

Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

Wang

Guo

et al. 2023

IET Electric Power Appl

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“…6 Affected by different orders of harmonics and motor speed, the radial force acts on the motor, resulting in the high-frequency excitation of more than 2000 Hz in the electric vehicle powertrain. 7 Rubber isolators are the critical component to reduce the vibration of the powertrain. However, few studies are focusing on the high-frequency dynamic characteristics of rubber isolators.…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of dynamic characteristics of rubber isolators for electric vehicles under high-frequency excitation

Liu

Zhang

Xing

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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The rubber isolator is a key component connecting the vehicle body and the powertrain, which plays a significant role in reducing the vibration transmission from the engine to the vehicle body. With the development of electric vehicles, the excitation frequency generated by the powertrain can exceed 2 kHz. The conventional dynamic models are usually used to simulate the low-frequency dynamic characteristics of rubber isolators, in the range of 0–200 Hz, which is the main excitation frequency range of the traditional internal combustion engine vehicle. However, they cannot simulate the high-frequency dynamic characteristics accurately since the inertial force caused by the mass of rubber isolators increases greatly under high frequencies. And the high-frequency dynamic characteristics of rubber isolators is of great significance for isolator fatigue life prediction, powertrain system vibration isolation design and noise control caused by the high-frequency resonance of the isolator. In this paper, a general model with mass elements is proposed to describe the effect of the inertial force on high-frequency dynamic stiffness. Based on the proposed model and considering the different expressions of the viscoelastic properties of rubber isolators, three improved dynamic models of rubber isolators are established, and used to analyze the high-frequency dynamic characteristics of rubber isolators. It has been demonstrated that the inertial force plays a non-negligible role in the dynamic characteristics of rubber isolators under high-frequency excitation. The proposed model can be used to analyze the effect of the inertial force on the dynamic characteristics at high frequencies accurately. The high-frequency dynamic characteristic modeling method of rubber isolators presented in this paper is helpful to the vibration and noise analysis of electric vehicle powertrain systems under high-frequency excitation.

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“Rejuvenation with Modernization of Hydrogenator”; Prediction and Control of Electromagnetic Vibration with Artificial, Development of Stator Frame Design, Artificial Intelligence—A Review Study

Thakur,

Goga

2023

Algorithms for Intelligent Systems

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Analysis and design of electromagnetic vibration and noise reduction method of permanent magnet motor

Cited by 5 publications

References 20 publications

Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

Modeling and analysis of dynamic characteristics of rubber isolators for electric vehicles under high-frequency excitation

“Rejuvenation with Modernization of Hydrogenator”; Prediction and Control of Electromagnetic Vibration with Artificial, Development of Stator Frame Design, Artificial Intelligence—A Review Study

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