Quasi-autonomous thermal model reduction for steady-state problems in space systems

Fernández-Rico, Germán and Pérez-Grande, María Isabel and Sanz Andres, Angel Pedro and Torralbo, Ignacio and Woch, Joachim (2016). Quasi-autonomous thermal model reduction for steady-state problems in space systems. "Applied Thermal Engineering", v. 105 ; pp. 456-466. ISSN 1359-4311. https://doi.org/10.1016/j.applthermaleng.2016.03.017.

Description

Title: Quasi-autonomous thermal model reduction for steady-state problems in space systems
Author/s:
  • Fernández-Rico, Germán
  • Pérez-Grande, María Isabel
  • Sanz Andres, Angel Pedro
  • Torralbo, Ignacio
  • Woch, Joachim
Item Type: Article
Título de Revista/Publicación: Applied Thermal Engineering
Date: July 2016
ISSN: 1359-4311
Volume: 105
Subjects:
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Aeronaves y Vehículos Espaciales
UPM's Research Group: Desarrollo y Ensayos Aeroespaciales DEA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A matrix method is developed to reduce the number of elements of spacecraft thermal mathematical models based on the lumped parameter method. The aim of this method is to achieve a satisfactory thermal model reduction for steady-state problems, in an automatic way, while preserving the physical meaning of the system and the main characteristics of the model. The simplicity of the method, and the computational cost, are also taken into account. The reduction process is based on the manipulation of the conductive coupling matrix, which is treated as a sparse graph adjacency matrix. Then, a depthfirst search algorithm is used to find the strongly connected components, which define the condensed nodes. Finally, all the thermal entities are reduced, and the results from the condensed model are compared to those from the detailed one. The entire reduction process is tested on a real thermal model,showing a good performance. In the conclusions section the characteristics and limitations of this method are shown.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAYA2012-39636-C06-04UnspecifiedUnspecifiedDiseño detallado, fabricación e integración de SO/PHI
Government of SpainESP2013-47349-C6-4-RUnspecifiedUnspecifiedParticipación de IDR/UPM en Solar Orbiter: Fabricación, integración y verificación de PHI ; Contribución a ingeniería de sistemas de EPD

More information

Item ID: 47150
DC Identifier: http://oa.upm.es/47150/
OAI Identifier: oai:oa.upm.es:47150
DOI: 10.1016/j.applthermaleng.2016.03.017
Official URL: http://www.sciencedirect.com/science/article/pii/S1359431116303088
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 18 Jul 2017 11:04
Last Modified: 31 Jul 2017 22:30
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