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http://dx.doi.org/10.5050/KSNVE.2013.23.7.617

Estimation of Excitation Force and Noise of Drum Washing Machine at Dehydration Condition using Phase Reference Spectrum  

Kim, Tae Hyeong (Graduate School of Mechanical Engineering, Pusan National University)
Jung, Byung Kyoo (Graduate School of Mechanical Engineering, Pusan National University)
Heo, So Jung (LG Electronics Inc.)
Jeong, Weui Bong (School of Mechanical Engineering, Pusan National University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.7, 2013 , pp. 617-623 More about this Journal
Abstract
Accurate prediction of the radiated noise is important to reduce the noise of the washing machine. It is also necessary to predict the excitation force accurately because excitation force can induce noise. In order to predict the excitation force acting on the washing machine, this paper conducts source identification method by use of phase reference spectrum. In this method, the transfer function between the cabinet and the motor through FEM and the measured response from the surface of the cabinet is used. The analysis of the radiation noise from the identified exciting force has been investigated. The comparison between the predicted SPL and the measured SPL at 1m apart from the front side of the washing machine showed good tendency.
Keywords
Source Identification; Drum Washing Machine; Singular Value Decomposition; Phase Reference Spectrum; Radiated Noise;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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6 LMS, LMS Virtual.Lab Transfer Path Analysis.