Abstract
An elevator is an important transportation device. Recently, due to downsizing and weight saving of traction machine, the magnetic flux density increases and stiffness of the structure decreases. Therefore, vibration of traction machine may propagate to near-by room and produce acoustic noise and vibration in the room. If in design phase, whole simulation of vibration and acoustic noise from the motor to the room is performed, reduction measures are provided effectively at noise source, propagation path and noise radiation points. In this paper, the comparison and examination result on the cooperation analysis of the electromagnet, structure and noise for predicting room noise and measurement are reported.
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