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Memorias de investigación
Artículos en revistas:
Correlation of spacecraft thermal mathematical models to reference data
Año:2017
Áreas de investigación
  • Ingeniería aeronaútica
Datos
Descripción
Model-to-test correlation is a frequent problem in spacecraft-thermal control design. The idea is to determine the values of the parameters of the thermal mathematical model (TMM) that allows reaching a good ?t between the TMM results and test data, in order to reduce the uncertainty of the mathematical model. Quite often, this task is performed manually, mainly because a good engineering knowledge and experience is needed to reach a successful compromise, but the use of a mathematical tool could facilitate this work. The correlation process can be considered as the minimization of the error of the model results with regard to the reference data. In this paper, a simple method is presented suitable to solve the TMM-to-test correlation problem, using Jacobian matrix formulation and Moore-Penrose pseudo-inverse, generalized to include several load cases. Aside, in simple cases, this method also allows for analytical solutions to be obtained, which helps to analyze some problems that appear when the Jacobian matrix is singular. To show the implementation of the method, two problems have been considered, one more academic, and the other one the TMM of an electronic box of PHI instrument of ESA Solar Orbiter mission, to be ?own in 2019. The use of singular value decomposition of the Jacobian matrix to analyze and reduce these models is also shown. The error in parameter space is used to assess the quality of the correlation results in both models.
Internacional
Si
JCR del ISI
No
Título de la revista
Acta Astronautica
ISSN
0094-5765
Factor de impacto JCR
Información de impacto
Volumen
DOI
10.1016/j.actaastro.2017.12.033
Número de revista
144
Desde la página
305
Hasta la página
319
Mes
NOVIEMBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ignacio Torralbo Gimeno (UPM)
  • Autor: M. Isabel Perez Grande (UPM)
  • Autor: Angel Pedro Sanz Andres (UPM)
  • Autor: Javier Piqueras Carreño (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Desarrollo y Ensayos Aeroespaciales
  • Centro o Instituto I+D+i: Instituto Universitario de Microgravedad "Ignacio da Riva"
  • Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
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