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Modeling of Thermal Perturbations Using Raytracing Method with Preliminary Results for a Test Case Model of the Pioneer 10/11 Radioisotopic Thermal Generators

Rievers, B. and Lämmerzahl, C. and Dittus, H. (2010) Modeling of Thermal Perturbations Using Raytracing Method with Preliminary Results for a Test Case Model of the Pioneer 10/11 Radioisotopic Thermal Generators. Space Science Reviews. Springer-Science+Business Media B.V.. DOI: 10.1007/s11214-009-9594-6. ISSN 1572-9672 (Online).

Full text not available from this repository.

Abstract

Electromagnetic radiation emitted from a source carries momentum. Thus, the dissipation of waste thermal energy can produce disturbance forces on spacecraft surfaces if the energy is not dissipated in a symmetric pattern. This force can be computed for a plate element as the quotient of the radiated power in normal direction and the speed of light. Depending on mission and spacecraft design the resulting surface forces have to be included into the disturbance budget. At ZARM an elaborated method for the exact modeling of the disturbances caused by heat radiation was developed which can be used for any satellite mission with high requirements on perturbation knowledge (e.g. LISA, LISA pathfinder, MICROSCOPE). The method which will be presented in this paper is based on raytracing and finite element (FE) thermal analysis. As a demonstration of the potential of the method, preliminary results acquired with a test case model of the Pioneer 10/11 Radioisotopic Thermal Generators (RTGs) will be shown.

Document Type:Article
Title:Modeling of Thermal Perturbations Using Raytracing Method with Preliminary Results for a Test Case Model of the Pioneer 10/11 Radioisotopic Thermal Generators
Authors:
AuthorsInstitution or Email of Authors
Rievers, B.ZARM, Univ. Bremen
Lämmerzahl, C.ZARM, Univ. Bremen
Dittus, H.Inst. f. Raumfahrtsysteme, DLR, Bremen
Date:6 January 2010
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1007/s11214-009-9594-6
Editors:
EditorsEmail
Bloemen, HansSRON Netherlands Institute for Space Research
Publisher:Springer-Science+Business Media B.V.
ISSN:1572-9672 (Online)
Status:Published
Keywords:Disturbance modeling, Heat dissipation, FEM
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems
Deposited By: Prof.Dr. Hansjörg Dittus
Deposited On:10 Mar 2010 12:47
Last Modified:07 Feb 2013 20:44

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