The competition among several existent brands of automobile industry has highly increased over the last 10 years. It leads all the companies to adopt methods to develop new models in a shorter period of time, but also focused on project requirements, quality and costs in order to satisfy the costumer.The main goal of this work is to propose a computational methodology optimization of the windshield wiper system in order to achieve the maximum wiped area by optimizing wiper blades lengths and orientations. Parallel to that, constrains make the methodology finds the optimum kinematic design for the windshield wiper linkage in terms of mobility, available area to fix the linkage on body and the maximum range of the blades oscillatory motion.The development has two stages: the first is the positioning and orientation of the blades optimization in order to maximize the cleaning area, and the second is the mechanism optimization, where it tries to find the optimum length of the mechanism`s links, also in order to maximize the cleaning area, at the same time it controls the maximum amplitudes of the angular accelerations and speeds of these links. The methodology evaluation was performed using the MATLAB® applied on an existent windshield wiper system of a domestic passenger carThe results were satisfactory, since the cleaning area was maximized as well as the mechanism has been optimized within the imposed limits by constrains. The developed methodology has proved to be a potential tool in developing new projects, since the early phases of vehicle development. Área total do para-brisa. LISTA DE TABELAS R1Raio do arco correspondente ao limite inferior do para-brisa. R2Raio do arco correspondente ao limite superior do para-brisa. A1Ponto correspondente à extremidade direita do arco R1. A2Ponto correspondente à extremidade direita do arco R2. B1Ponto correspondente à extremidade esquerda do arco R1. B2Ponto correspondente à extremidade esquerda do arco R2.ܤ ଶ Comprimento do Braço-palheta -passageiro. ߠ ುభÂngulo existente entre braço-palheta ܤ ଵ e a barra fixa ܮ ௗଶ . ߠ ುమÂngulo existente entre braço-palheta ܤ ଶ e a barra fixa ܮ ௗଶ . P1Comprimento da palheta -motorista. Este trabalho estuda o sistema limpador de para-brisas, o qual é item obrigatório em todos os veículos por ser um item de segurança e estar submetido a uma legislação que define requisitos que o mesmo deverá atender para que o veículo seja homologado e comercializado no país.Este sistema por sua vez faz parte dos itens que são completamente novos em veículos em desenvolvimento, salvo os veículos novos que se comparados a veículos existentes não sofram alteração de superfície e dimensão do para-brisa, no posicionamento do sistema limpador no veículo, e no posicionamento do motorista em relação ao para-brisa. Devido a isso, o uso de recursos e métodos no desenvolvimento deste sistema que objetivem o atendimento aos requisitos de projeto, exigindo menos tempo para alcançar resultados satisfatórios e com menor custo desde as primeiras fases...
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