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Dynamic modeling and analysis of a quad horizontal damper system for transient vibration reduction in top loading washing machine

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Abstract

The transient horizontal vibration of top loading washing machine with large capacity has been more important because of the radius of the inner tub in the washing machine increases proportionally. In this paper, we introduce a new vibration reduction technology, namely, a quad horizontal damper system for reduction of the transient horizontal vibration of top loading washing machine. And analyzes the vibration characteristics of a top loading washing machine with a quad horizontal damper system using Newtonian mechanics. For verification and validation of the established dynamic model, the displacement of an actual top loading washing machine are obtained from six laser sensors attached at the upper part and the lower part of outer tub respectively. Optimal design was carried out to ensure sufficient strength and reliability for each component of the horizontal damper. The damping force of the horizontal damper was also optimized so that the horizontal vibration in the transient state of top loading washing machine was reduced by about 35~45 % more than the conventional top loading washing machine and no abnormal noise was generated at high spin speed.

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Correspondence to Young-Jong Kim.

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Recommended by Associate Editor Kyoung-Su Park

Young Jong Kim is in charge of advance top loading washing machine R&D in LG Electronics and is currently working as a research fellow in noise and vibration. He received the minister citation for the contribution of science and technology promotion in 2013. His a quad horizontal damper technology was certificated as NET and received the IR52 award in 2014.

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Kim, YJ., Kim, DC. & Jeong, WB. Dynamic modeling and analysis of a quad horizontal damper system for transient vibration reduction in top loading washing machine. J Mech Sci Technol 33, 1123–1130 (2019). https://doi.org/10.1007/s12206-019-0210-8

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  • DOI: https://doi.org/10.1007/s12206-019-0210-8

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