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Doctoral Thesis
DOI
https://doi.org/10.11606/T.18.2016.tde-20052016-102316
Document
Author
Full name
Wladimir Alex Magalhães Barcha
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2004
Supervisor
Committee
Varoto, Paulo Sergio (President)
Balthazar, José Manoel
Costa Neto, Álvaro
Dedini, Kátia Lucchesi Cavalca
Rade, Domingos Alves
Title in Portuguese
Estudo do comportamento dinâmico e do fenômeno de deslocamento em lavadoras de roupas de eixo vertical
Keywords in Portuguese
Comportamento dinâmico
Lavadora de roupas
Sistemas de balanceamento
Vibração
Abstract in Portuguese
Este trabalho apresenta e compara alguns meios para o estudo do comportamento dinâmico de uma lavadora de roupas de eixo vertical durante o processo de extração de água das roupas, também conhecido como centrifugação. Os três métodos utilizados para estudar o comportamento dinâmico de uma lavadora de roupas de eixo vertical foram: analítico, experimental e simulação através de multicorpos. O interesse nesta etapa é devido ao fato dos problemas de vibração de uma lavadora ocorrerem principalmente durante a centrifugação. A modelagem de uma lavadora de roupas durante a etapa de centrifugação permite a obtenção de seu comportamento dinâmico bem como de suas principais características. Um outro tópico estudado neste trabalho foi o fenômeno de deslocamento da lavadora, um dos principais motivos de reclamação dos usuários de lavadoras de roupa automáticas.
Title in English
Study of the dynamic behavior and walking phenomenon of a vertical axis washing machine
Keywords in English
Balance systems
Dynamic behavior
Vibration
Washing machine
Abstract in English
This work presents and compares some ways to study the dynamic behavior of a vertical axis washing machine during the water extraction process, also called spinning stage. The three methodologies used to study the dynamic behavior of a vertical axis washing machine area: analytical, experimental and simulation using Multi Body System. The interest in this stage is due to the fact that the main vibration problems of an automatic washing machine occur in the spinning cycle. Since the unbalance force that causes the vibration problems is centrifugal in nature, this makes intuitive sense as the rotational speed of the basket is the largest during the spin extraction cycle. Thus, modeling the washing machine during the spinning cycle allow us to get its dynamic behavior as well as the main characteristics of this behavior. Another topic studied in this work was the walking phenomenon, the main complaint of the users.
 
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Publishing Date
2016-05-20
 
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