Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
AN INTEGRATED SPACE SYSTEM DESIGN TOOL KIT FOR THE ITA SPACE CENTER’S PROJECTS
Submission Author:
Gustavo Corrêa Fazio , SP
Co-Authors:
Ana Luiza de Souza Maran, Gustavo Corrêa Fazio, Victor Moreno Coelho, Débora Miyuki Shinzato, Erica Generoso Lima, Rodrigo Dias, Thais Cardoso Franco, Pedro Kukulka de Albuquerque, Willer Gomes dos Santos
Presenter: Rodrigo Dias
doi://10.26678/ABCM.COBEM2021.COB2021-1812
Abstract
During the conceptual phase of a space mission, when the requirements and restrictions of the project are still being explored and defined, the design team's focus is mainly on carrying out trade studies. Such studies not only look for one or more candidate solutions for the mission in question but also help to refine the mission's requirements and restrictions. Therefore, in this phase, it is more important to perform extensive and wide research through the design space, instead of conducting deeper analysis. However, the design of space systems is a complex and multidisciplinary task that includes several technical aspects of the engineering field. Studies have shown that the best compromise solutions can be obtained considering all these aspects from a systemic and integrated point of view. A trade analysis consists of evaluating alternative design options during the conceptual study phase taking into account, for example, values of mass, power, cost, schedule, orbital lifetime, reliability, delta-V, among others, that influence the design of a satellite and its subsystems. Such analysis, in general, is executed by a team of specialists in different knowledge fields working together. This methodology is known as a concurrent engineering process. In the past decade, the use of such environments has been widely used by space agencies to significantly reduce the conceptual design time, from months to week. Going in this direction, the recently founded ITA Space Center has also used a concurrent engineering process for developing its projects of small satellites. Therefore, this work aims to show a computational tool kit for the conceptual design of space systems in an integrated and systematic way. Rather than the conventional and limited spreadsheets, the proposed method has been built in a dynamic script that combines code, input and output data, formatted text, and images in an executable framework increasing and expanding the computational capacity. This work will focus on describing the integration and systematic operation of the proposed model considering just the main disciplines of a spacecraft design: orbit, propulsion, control, communication, and power. With this integrated tool, it is expected to simplify the process of conceptual design, speed up the generation of the candidate solutions, expand the capacity for using more complex algorithms, such that the mission requirements can be better satisfied. In addition, multidisciplinary design optimization methods can be hereafter applied to optimize the search in the design space.
Keywords
Space systems design, spacecraft, Concurrent engineering, design process
