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

  • 제28권8호
  • /
  • Pages.1212-1220
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  • 2004
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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자동 밸런서를 갖는 세탁기 시스템의 동력학 모델링 및 해석

Dynamic Modeling and Analysis of the Washing Machine System with an Automatic Balancer

  • 오혁진 (인제대학교 대학원 기계공학과) ;
  • 이우식 (인제대학교 기계공학과)
  • 발행 : 2004.08.01
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초록

The structural unbalance mass and laundry are the important sources of the severe vibrations of automatic washing machines. In this paper, a mathematical model is developed for the dynamic analysis of the vertical axis automatic washing machines of pulsator-type. In the model, the rigid body motion of tub assembly is represented by six degrees of freedom and the dynamics of automatic hydraulic balancer is represented by one degree of freedom. The fundamental elastic modes of the tub shell and four suspension bars are also taken into account in the mathematical model, based on analytical and experimental modal analysis results. The 12 degrees of freedom equations of motion are derived by using the Lagrange's equations and the present dynamic model is evaluated by comparing the numerical simulation results with experimentally measured data.

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참고문헌

  1. Conrad, D. C. and Soedel, W., 1995, 'On the Problem of Oscillatory Walk of Automatic Washing Machines,' Journal of Sound and Vibration, Vol. 188, No.3, pp. 301-314 https://doi.org/10.1006/jsvi.1995.0595
  2. Jo, S. O, Lee, J. U. and Kim, T. S., 1998, 'Modeling and Dynamic Analysis of a Front Loaded Washing Machine with Ball Type Automatic Balancer', Journal of KSNVE, Vol. 8, No.4, pp. 670-682
  3. Kim, Y. C., Chae, H. K and Kim, T. S., 1998, 'Optimum Design of Pulsator Type Washing Machine by Using Formal Approximation Method', Proceeding of KSNVE, pp. 693-699
  4. Bae, S., Lee, J. M., Kang, Y. J. and Kang, J. S., 2002, 'Dynamic Analysis of an Automatic Washing Machine with a Hydraulic Balancer,' Journal of Sound and Vibration, Vol. 257, No. 1, pp. 3-18 https://doi.org/10.1006/jsvi.2001.4162
  5. Chung, J. and Ro, D. S., 1999, 'Dynamic Analysis of an Automatic Dynamic Balancer for Rotating Mechanisms,' Journal of Sound and Vibration, Vol. 228, No.5, pp. 1035-1056 https://doi.org/10.1006/jsvi.1999.2456
  6. Chung, J. and Ro, D. S., 2003, 'Dynamic Response and Stability Analysis of an Automatic Ball Balancer for a Flexible Rotor,' Journal of Sound and Vibration, Vol. 259, No. 1, pp. 31-43 https://doi.org/10.1006/jsvi.2002.5137
  7. Turkay, O. S., Tugcu, A. K. and Sumer, I. T., 1995, 'Formulation and Implementation of Parametric Optimisation of a Washing Machine Suspension System', Journal of Mechanical System and Signal Processing, Vol. 9, No.4, pp. 359-377 https://doi.org/10.1006/mssp.1995.0029

피인용 문헌

  1. Dynamic Analysis of a Washing Machine Using a Multi-body Dynamic Model vol.22, pp.1, 2012, https://doi.org/10.5050/KSNVE.2012.22.1.088
  2. Non-linear Characteristic Modeling of Frictional Suspension Using Measured Data vol.39, pp.1, 2015, https://doi.org/10.3795/KSME-A.2015.39.1.045
  3. Suggestion of MSTV (Modified-Stick-Transition-Velocity) model for hysteretic damping mechanism vol.22, pp.7, 2008, https://doi.org/10.1007/s12206-008-0406-9