Experiment-based design optimization of a washing machine liquid balancer for vibration reduction

Seok Ho Son, Sang Bin Lee, Dong Hoon Choi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The most prevalent problem in washing machines is the vibration incurred during the spin cycles. The balance of the washing machine plays an important role in reducing the vibrations from an unbalanced mass by injecting salt water into an automatic balancer. In this study, we determined the optimal dimension of layers and the amount of salt water for an automatic liquid balancer in order to minimize the maximum displacement of a low-speed spin cycle while satisfying the design constraint on the maximum displacement of a high-speed spin cycle. The maximum displacements for a specified design point were obtained by performing laboratory experiments. For design optimization, approximate models of the maximum displacements were created by employing radial basis function regression (RBFr) models based on the experimental data at full factorial design points. Then, an optimization algorithm was applied to the RBFr models to obtain the optimum solution. Using the proposed design approach, the optimal value of the maximum displacement of a low-speed spin cycle was reduced by 13.1%, compared to the initial value, while satisfying the design constraint on the maximum displacement of a high-speed spin cycle.

Original languageEnglish
Pages (from-to)1433-1438
Number of pages6
JournalInternational Journal of Precision Engineering and Manufacturing
Volume13
Issue number8
DOIs
Publication statusPublished - 2012 Aug
Externally publishedYes

Keywords

  • Liquid automatic balancer
  • Meta-model
  • Optimization
  • Washing machine

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Experiment-based design optimization of a washing machine liquid balancer for vibration reduction'. Together they form a unique fingerprint.

Cite this