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This paper investigates the effect of pole and slot combination on the vibration and noise in permanent magnet synchronous motor (PMSM). Two PMSMs that have the same performances but different pole and slot combinations are studied. A numerical analysis process for the vibration is introduced. First, by using the electromagnetic field finite element analysis (FEA) and Maxwell stress tensor method,...
This paper presents evaluation and analysis of acoustic noise and vibration in interior permanent magnet synchronous motor (IPMSM). Acoustic noise and vibration have a close relationship. Acoustic noise is generated by vibration of the motor stator due to the magnetic force. It is called local force that is composed of normal force and tangential force. Harmonics of normal force associated with resonant...
Electric power steering is designed to use an electric motor to reduce effort by providing steering assist to the driver of a vehicle. EPS have advantages which are economical and eco-friendly compare with hydraulic power steering, because power steering oil is not used and efficiency of vehicle is increased to 3~5 %. Since EPS is connected to handle of vehicle, noise and vibration have an effect...
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