86. New damper design for noise control of washing machine
Guang-qing Lu1, Dong-mei Pang2
MOE Key Lab of Disasters Forecast and Control in Engineering, Jinan University, Guangzhou, China
E-mail: firstname.lastname@example.org, email@example.com
(Received 12 February 2016; accepted 19 April 2016)
Abstract. A fully automatic washing machine with vertical pulsator and 10 kg load capacity has most violent shake and or vibration, and worst dynamic stability, which result in maximum noise in dehydration. The mechanisms of noise generation and motions at stage of dehydration are analyzed. Dynamic impacting excitation is firstly clarified as the most important dominant factor in understanding acoustic behavior of the washing machine at the stage. A new damper is developed and designed on the basis of improving the degree of harmonics (DOH) of dynamic impacting force, which is employed as the critical criterion for damper design. Applying the damper developed reduces the washing machine noise 2.2 dB(A) and 4.7 dB(A) under conditions of normal and worst unbalance respectively.
Keywords: washing machine, damper, noise control, dynamic impact force.
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Cite this article
Lu Guang‑qing, Pang Dong‑mei New damper design for noise control of washing machine. Journal of Measurements in Engineering, Vol. 4, Issue 2, 2016, p. 43‑51.
Journal of Measurements in Engineering. June 2016, Volume 4, Issue 2
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