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Authors
Abstract(s)
Este trabalho aborda o desenvolvimento e adaptação de um sistema limpa pára-brisas já
existente de forma a torná-lo modular para que possa ser adaptado a outros tipos de aeronaves
com diferentes tipos de geometrias e ligações. Foi realizado em parceria com a Airbus Helicopters
Deutschland GmbH para o Trabalho Final de Mestrado. Esta obra corresponde à fase
inicial de desenvolvimento do projecto com vista à aprovação e certificação aeronáutica para
que seja levada a cabo a sua produção e implementação nos diversos modelos de helicópteros
da empresa.
Numa fase inicial foi feita uma pesquisa quanto a sistemas similares existentes no mercado,
não só da aeronáutica como de outras áreas de negócio, antes do modelo da Airbus ser alvo de
análises cinemáticas. Após ter sido entendido o propósito e funcionamento básico de sistemas
idênticos procedeu-se às análises computacionais do sistema da Airbus e, posteriormente, à sua
adaptação a uma aeronave com um diferente tipo de conecção e de geometria.
Todos os estudos foram desenvolvido com recurso a tecnologia CAD através do software
SolidWorks com o objectivo de obter um modelo n˜ao apenas resistente aos carregamentos
externos aplicados, mas principalmente resistente a esforços cíclicos. Isto foi relevante acima
de tudo para a nova peça de adaptação que foi projectada.
Os estudos cinemáticos, estáticos e de fadiga foram levados a cabo com sucesso culminando
na validação da peça projectada, os correspondentes elementos de ligação e a chumaceira seca.
This work addresses the development and adaptation of an existing windshield wiper system in order to make it modular so that it can be adapted to other aircraft types, with different kinds of geometries and connections. It was carried out in partnership with Airbus Helicopters Deutschland GmbH for the Master of Science Thesis. This work corresponds to the initial development phase of the project for the aeronautical approval and certification, to see its production and implementation in the company’s helicopters being carried. At an early stage, research was carried out on similar systems in the market, not only in aeronautics but also in other business areas, before the Airbus model was subjected to kinematic analysis. After having understood the purpose and basic operation of identical systems, the computational analysis of Airbus’ system was carried out and, after that, its adaptation to an aircraft with a different type of connection and geometry. All studies were developed using CAD technology through the software SolidWorks in order to obtain a model not only resistant to the applied external loads, but mainly resistant to cyclic forces. This was relevant especially for the new adaptation part that was designed. Kinematic, static and fatigue studies were successfully completed, culminating in the validation of the projected part, the corresponding connecting elements and the dry bearing.
This work addresses the development and adaptation of an existing windshield wiper system in order to make it modular so that it can be adapted to other aircraft types, with different kinds of geometries and connections. It was carried out in partnership with Airbus Helicopters Deutschland GmbH for the Master of Science Thesis. This work corresponds to the initial development phase of the project for the aeronautical approval and certification, to see its production and implementation in the company’s helicopters being carried. At an early stage, research was carried out on similar systems in the market, not only in aeronautics but also in other business areas, before the Airbus model was subjected to kinematic analysis. After having understood the purpose and basic operation of identical systems, the computational analysis of Airbus’ system was carried out and, after that, its adaptation to an aircraft with a different type of connection and geometry. All studies were developed using CAD technology through the software SolidWorks in order to obtain a model not only resistant to the applied external loads, but mainly resistant to cyclic forces. This was relevant especially for the new adaptation part that was designed. Kinematic, static and fatigue studies were successfully completed, culminating in the validation of the projected part, the corresponding connecting elements and the dry bearing.
Description
Submitted to the graduate School of the Instituto Superior de Engenharia de Lisboa in partial fulfilment of the requirements for the degree of masters of Science in Mechanical Engineering
Keywords
Sistema limpa pára-brisas Windshield wiper system Design Design Helicóptero Helicopter Modelação 3D 3D Modelling Concepção assistida por computador Computer-aided design Método de elementos finitos Finite element method Estudo cinemático Kinematic study Estudo estático Static study Estudo de fadiga Fatigue study
Citation
AMARAL, João do Nascimento - Design and development of a modular windshield wiper system for helicopters. Lisboa: Instituto Superior de Engenharia de Lisboa, 2019. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa