Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Non-linear Characteristic Modeling of Frictional Suspension Using Measured Data

특성 시험 결과를 이용한 마찰 서스펜션의 비선형 특성 모델링

  • Yoon, Chang Gyu (Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jang, Jin Seok (Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jin, Jae Hoon (Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Yoo, Wan Suk (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • Received : 2014.07.29
  • Accepted : 2014.10.21
  • Published : 2015.01.01
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Abstract

Large-capacity of household washing machine can become unbalanced during the dehydration process. To solve this problem, several types of suspensions have been installed in a washing machine. In this study, physical tests were carried out on a frictional suspension, and the nonlinear characteristics were modeled by combining several simple physical models. The parameters were estimated based on the least squares solution. The simulation and test results were compared to verify the validity of the friction damper model.

세탁기의 용량이 커지면서 세탁 및 탈수 시의 세탁물에 의한 질량 불균형 문제가 심해지고 있으며, 이러한 문제를 해결하기 위하여 세탁기에서도 다양한 형태의 서스펜션이 장착되고 있다. 본 연구에서는 마찰 서스펜션에서 발생하는 힘을 측정한 뒤, 물리적인 수식으로 마찰 서스펜션의 비선형 특성을 모델링 하였다. 최소 자승 해(least squares solution)를 구해 파라미터들을 추정하고, 시험과 동일한 조건의 시뮬레이션을 실시하여 개발된 마찰 서스펜션 모델링의 타당성을 검증하였다.

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References

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