Active vibration control of drum type of washing machine using linear oscillatory actuator

Suzuki, Yasuyuki; Hirata, Katsuhiro; Kato, Masakazu

doi:10.23919/ldia.2017.8097222

Cited by 6 publications

(1 citation statement)

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“…As mentioned previously, current environmental issues have resulted in an increase in load capacity, which is concerning for the kinematics of the tub, as its motion space is increasingly reduced [ 9 ]. Therefore, many authors have focused on controlling the tub motion [ 10 , 11 ]. It is generally agreed that the function of the suspension system is to reduce the rigid body motion of the tub to avoid collision with the housing in the transient state [ 12 ]; hence, many models are focused on the design and understanding of the system.…”

Section: Introductionmentioning

confidence: 99%

Washing Machine Dynamic Model to Prevent Tub Collision during Transient State

Sánchez-Tabuenca

Galé

Lladó

et al. 2020

Sensors

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In horizontal-axis washing machines, the front gasket as well as the damping system are crucial owing to the possible collision of the tub with the housing during the transient period. However, most dynamic models for predicting tub motion focus on the steady state and consider only the suspension system without including the gasket. We conducted an experimental study to analyze the effect of the gasket on the transient motion of the tub. The results obtained indicate the necessity of implementing the gasket in the multibody model of a washing machine to accurately predict the tub behavior during this period. The gasket model is formed by a combination of Voigt elements. Stiffness parameters are determined using a load cell, and damping factors are estimated using a process that integrates Adams/View, Matlab optimization algorithms, and displacement measurements that are taken using accelerometers. A D-optimal design used to predict the effect of the gasket parameters reveals that the tub displacement is most sensitive to the changes in linear stiffness in the transversal direction. Finally, the model of the gasket provides a better approach for predicting the tub movement during resonance that can be used in the design phase to avoid tub collision.

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Section: Introductionmentioning

confidence: 99%