MultibodyDynamic Modeling and Experimental validation of a Front- LOADING Washing Machine in the spin cycle

In this study, the tub vibration as one of the most common issues of washing machines (WM) is examined through numerical modeling and experimental investigation. The suspension sys-tem of the WM is simulated in the Adams/View software. In many researches, the dry friction dampers were simulated by the Coulomb friction model. Since, the non-linear behavior of the Coulomb model, the multibody dynamic model would be heavy in terms of computational costs. Thus, a smooth function is fitted to the experimental force-displacement of the damper and employed instead of the Coulomb function. Experimental tests are performed using a 300 gr unbalance magnet at the spin-dry cycle with the speed of 1400 rpm. The results depict that the model does well predict the vibration of the WM and can be used for design and optimiza-tio