SPSYSE-TK: a methodology for space systems engineering based on the procurement of turnkey satellites

• Ano de defesa: 2017
• Autor(a) principal: Gabriel Gustavo Coronel Mariño
• Orientador(a): Geilson Loureiro
• Banca de defesa: Otávio Luiz Bogossian, Petrônio Noronha de Souza, Luiz Gonzaga Trabasso
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Instituto Nacional de Pesquisas Espaciais (INPE)
• Programa de Pós-Graduação: Programa de Pós-Graduação do INPE em Engenharia e Gerenciamento de Sistemas Espaciais
• País: BR
• Link de acesso: http://urlib.net/sid.inpe.br/mtc-m21b/2017/03.17.13.44

Latin American countries, such as Venezuela, Mexico, Peru, and Brazil, have recently implemented space systems based on procured satellites from more experienced manufacturers. On the other hand, systems engineering has demonstrated to be an ideal approach to solve problems that involve complex solutions, such as space systems. Literature review showed that traditional systems engineering approach should change when the procurement of previous developed elements is considered. In these cases, the market imposes restrictions on the solution, and thus, feedbacks, iterations, and trade-offs should be performed between what is wanted and what exists. Consequently, this work proposes a methodology for space systems engineering based on the procurement of turnkey satellites (i.e. pre-specified satellites), which are available on the market and that potentially, as occurs with commercial products in other industries, might result in the implementation of space systems at lower costs and in shorter times with respect to space systems in which all their elements must be developed. The proposed methodology, which is called SPSYSE-TK, aims to guide the development of space systems based on traditional systems engineering activities that have been adapted to take into account the issues and restrictions that commercial products impose on the solution to a given problem. This enables translating a set of customer and other stakeholders needs into a space system while considering the limitations that are imposed by the turnkey satellites on such space system as well as the existing characteristics of such satellites that can be exploited. The SPSYSE-TK methodology brings to the space industry practices that have been identified in other industries and have been catalogued as appropriate for performing systems engineering while accommodating commercial products. Specifically, the SPSYSE-TK methodology proposes a set of phases, processes, and activities, which have been particularly established for specifying space systems based on the procurement of turnkey satellites. The SPSYSE-TK methodology is exemplified and compared with respect to the traditional space systems engineering methodology of the ECSS that is used for the development of systems conceived for a particular mission. The SPSYSE-TK methodology showed to be more appropriate than the ECSS methodology for space projects based on the procurement of turnkey satellites.