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Análise de Minimum Constraint Design e de Redundant Constraint Design
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O objetivo do trabalho realizado no decorrer da presente dissertação de mestrado consistiu em recolher, organizar e resumir informação relevante sobre duas metodologias de projeto: o Minimum Constraint Design e o Redundant Constraint Design. Estas metodologias incidem na forma de como se deve constranger os componentes de um sistema mecânico, de estruturas e corpos físicos em geral. O intuito principal deste trabalho foi a elaboração de um documento redigido em língua portuguesa que possa contribuir para a obtenção de melhores projetos em engenharia mecânica e que possa também servir como primeira introdução ao tema a alunos de engenharia e até mesmo a projetistas pouco fami-liarizados com a definição e explicitação destas metodologias e dos seus princípios fundamentais. Adi-cionalmente, também se procurou estipular algumas diretrizes e orientações para a escolha entre uma ou outra na prática de engenharia, dando exemplos de aplicação. Por fim, pretendeu-se fazer um enqua-dramento de ambas as metodologias na Teoria Axiomática de Projeto.
Para fazer este enquadramento na Teoria Axiomática, partiu-se do estudo de um artigo já publicado que relaciona a Teoria Axiomática com o Minimum Constraint Design e que enuncia que esta metodologia de projeto é um caso particular do Primeiro Axioma. Em continuação a este trabalho, analisaram-se outros casos de aplicação do Minimum Constraint Design e de Redundant Constraint Design à luz da Teoria Axiomática.
Concluiu-se que a aplicação do Minimum Constraint Design é uma condição necessária para se obter projetos desacoplados, quando se trata de analisar os apoios e ligações de um corpo, mas que esta classificação pode ser dependente da forma de como se define e explicita os constrangimentos deseja-dos. Também se concluiu que, apesar de a Teoria Axiomática ser muito útil para proceder a uma expo-sição analítica de situações de constrangimento de um corpo e de servir para, até certo grau, comparar soluções diferentes, a mesma não serve necessariamente para categorizar projetos como sendo aceitáveis ou não aceitáveis no que respeita à forma de como os apoios e constrangimentos de um dado corpo devem ser aplicados.
The objective of the work carried out during this master's dissertation was to collect, organize and summarize relevant information about two project methodologies: Minimum Constraint Design and Re-dundant Constraint Design. These methodologies focus on how to constrain the components of a me-chanical system, structures and physical bodies in general. The main purpose of this work was the ela-boration of a document written in Portuguese that can be helpful for obtaining better projects in mecha-nical engineering and that can serve as a first introduction to the subject for engineering students and even for designers who are unfamiliar with the precise definition and explanation of these methodologies and their fundamental principles. Additionally, an attempt was also made to stipulate some guidelines for choosing between one or the other, giving examples of application. Finally, it was also intended to analyze both methodologies under the light of the Axiomatic Design Theory. To do so, the first step was to study an article already published that establishes a relationship between the Axiomatic Theory and the Minimum Constraint Design, stating that this design methodo-logy is a particular case of the application of the First Axiom. In continuation of this work, other cases of application of Minimum Constraint Design and Redundant Constraint Design were analyzed in ac-cordance with Axiomatic Design Theory. It was concluded that the application of the Minimum Constraint Design is a necessary condition to obtain decoupled projects, when it comes to analyzing the supports and connections of a body, but that this classification may be dependent on the way that the desired constraints are defined. It was also concluded that although the Axiomatic Theory is very useful to carry out an analytical exposition of the constraints applied to a body and serve to, to a certain degree, compare different solutions, it does not necessarily serve to categorize projects as being acceptable or not acceptable, with regard to how the supports and constraints on a given body should be applied.
The objective of the work carried out during this master's dissertation was to collect, organize and summarize relevant information about two project methodologies: Minimum Constraint Design and Re-dundant Constraint Design. These methodologies focus on how to constrain the components of a me-chanical system, structures and physical bodies in general. The main purpose of this work was the ela-boration of a document written in Portuguese that can be helpful for obtaining better projects in mecha-nical engineering and that can serve as a first introduction to the subject for engineering students and even for designers who are unfamiliar with the precise definition and explanation of these methodologies and their fundamental principles. Additionally, an attempt was also made to stipulate some guidelines for choosing between one or the other, giving examples of application. Finally, it was also intended to analyze both methodologies under the light of the Axiomatic Design Theory. To do so, the first step was to study an article already published that establishes a relationship between the Axiomatic Theory and the Minimum Constraint Design, stating that this design methodo-logy is a particular case of the application of the First Axiom. In continuation of this work, other cases of application of Minimum Constraint Design and Redundant Constraint Design were analyzed in ac-cordance with Axiomatic Design Theory. It was concluded that the application of the Minimum Constraint Design is a necessary condition to obtain decoupled projects, when it comes to analyzing the supports and connections of a body, but that this classification may be dependent on the way that the desired constraints are defined. It was also concluded that although the Axiomatic Theory is very useful to carry out an analytical exposition of the constraints applied to a body and serve to, to a certain degree, compare different solutions, it does not necessarily serve to categorize projects as being acceptable or not acceptable, with regard to how the supports and constraints on a given body should be applied.
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Palavras-chave
Minimum Constraint Design Exact Constraint Design Redundant Constraint Design Teoria Axiomática de Projeto Metodologias de Projeto Engenharia Mecânica