12555

11483

كارشناسي ارشد

طراحي كاربردي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك

1396

پانزده، 89ص.: مصور، جدول، نمودار

ص. ع. به فارسي و انگليسي

سعيد ضيايي راد

حسن نحوي

رضا تيكني، محمد دانش

1396/04/31

كتابنامه

مكانيك

مهندسي مكانيك

ID11483

92 Modeling and vibration analysis of a washing machine with design of cabinet for minimizing the vibration amplitudes Amir Heydari amir heydari@me iut ac ir Date of Submission 2017 05 19 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language FarsiSupervisor Saeed Ziaei Rad szrad@cc iut ac irAbstract The spinning process in a washing machine is a source of undesire vibrations and noise and may causediscomfort both to the user as well as for the machine itself Vibrations have impact on system lifetime reliability of operation and capacity The manufacturers of this product compete for sale with the highestquality products Manufacturers are interested in increasing the size of the laundry dryers in order to reducetheir washing time However the shaking of this product causes customer dissatisfaction Therefore theissue of analyzing and the vibration of washing is one of the main issues of manufacturers Having areliable model they can apply appropriate solutions to reduce vibrations on the product On the other hand they have led to a huge amount of prototype production cost which can be modeled to predict the washingmachine vibration behavior This research with the collaboration of the Entekhab Group has been devotedto modeling and verifying the vibration patterns of the laundry The problem is divided into two parts Thetub was modeled in the Adams and the cabinet was modeled in Abaqus software Each of these modeling iscompared with experimental results After veryfiy the model various effective factors have been analyzed In this thesis a numerical model for a horizontal axis washing machine is presented The model using atheoretical experimental methodology The tub model is implemented in the MBS environmentAdams View from MSC Software An undesirable impact of washing machine operation on surroundings isvibration and noise Also the study presents design for housing in order to reduse the wasing machinevibration Validation of the developed computational models has shown acceptable agreement both with tubdynamics as well as forces transmitted to the cabinet structure Keywords Adams Vibration Washing Machine Modeling Experiments Vibration dynamics cabinet

سعيد ضيايي راد

حسن نحوي

رضا تيكني، محمد دانش