Performance Analysis of Multi-Body Modeled Washing Machines (MBomWM)

Abstract

One of the key features of washing an automated machines is the noise and vibration it produces, or more technically, the decibel level it produces. Numerous of home appliance companies have put in much effort to solve this problem but there is still large room for further improvements especially in the rinse and the spin cycles of the washing machine. This work illustrates the performances of a multi-body modelled of washing machines realized with the aim to analyze the vibrational acoustic emission. An experimental measurement has been carried out using a digital sound level meter (SLM) to determine the overall noise produced by four different models of automated washing machines with a view of noting the model that has the highest sound pressure level during the three different cycles (the wash, rinse and spin). Result shows that all the machines produced their highest noise during the spinning cycle. Out of the four different model considered. IPSO HF: 304 has the highest sound level of 99.62dB during its spin cycle when maximum load of 30Kg was applied, followed by Imesa RC 23 with a 96.13dB. On the other hands, LG: Direct Drive 13 has the least sound pressure level of 84.75dB. With this knowledge in mind, one can advise a buyer which model to purchase from the market and if an operator must use the machine, how long he can operate such machine without health challenges.