Thermal Synthesizer System: An Integrated Approach to Spacecraft Thermal Analysis

Panczak, Tim; Rickman, Steven L.; Fried, Laurence E.; Welch, Mark

doi:10.4271/911582

Cited by 15 publications

(6 citation statements)

References 1 publication

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“…The TSS, Thermal Synthesizer System, is another tool developed by NASA to replace TRASYS and to improve older codes. TSS, implemented in C language, can execute thermal simulations for various purposes and offers both internal and external design options to determine temperatures of the spacecraft components [51]. Thermica is a comprehensive spacecraft-oriented modeling tool and performs a complete thermal analysis of an object in its environment.…”

Section: Simulation Software Toolsmentioning

confidence: 99%

Advances in Thermal Modeling and Analysis of Satellites

Atar

Aktaş

2022

Gazi University Journal of Science

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Section: Simulation Software Toolsmentioning

confidence: 99%

Advances in Thermal Modeling and Analysis of Satellites

Atar

Aktaş

2022

Gazi University Journal of Science

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“…21) to analyze view factors for other spacecraft surfaces such as antennas and OSR radiators. We also could apply a line-of-sight contamination analysis tool such as MOLFLUX (NASA) or MTK (Lockheed Martin) code, along with variation of sticking coefficients, to perform complex sensitivity analyses.…”

Section: 2mentioning

confidence: 99%

<title>Modeling of Hall thruster plume sputtering and contamination</title>

Chang

Wittenauer

Lichtin

et al. 2000

Optical Systems Contamination and Degradation II: Effects, Measurements, and Control

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This paper describes two modeling approaches developed at Lockheed Martin Missiles and Space Operations for analysis of the sputter erosion of spacecraft surfaces due to use of Hall thrusters. The PIC-DSMC (Particle in Cell-Direct Simulation Monte Carlo) plume model developed at Massachusetts Institute of Technology was successfully modified to model the BPT-4000 thruster (4.5 kW, 350 V) plumes. In addition to modeling the complicated plume features using the PIC-DSMC code, we also developed a semi-empirical plume model that requires less computational time for modeling the sputter erosion of spacecraft surfaces. The approach uses PLIMP (Plume Impingement) code as a ray-tracing tool to determine the plume distances from the exit to impinged objects (e.g. solar arrays), plume divergence angles, and impingement angles. Measured ion current flux and sputter rates were then used to examine the sputtering erosion for solar arrays on a representative geostationary spacecraft. This simi-empirical model allows one to perform a quick spacecraft-plume interaction investigation. Moreover, contamination deposition of eroded thruster products and sputtered spacecraft materials was examined.

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“…Improvements continued over the years, with CINDA ultimately being superceded by SINDA/FLUINT 2 . Progress was made in improving radiation analysis tools from TRASYS with the development the graphical based TSS 3 . However, the basic analysis process remained the same, independent of advances being made in CAD and FEM systems.…”

Section: Introductionmentioning

confidence: 99%

A CAD-Based Tool for FDM and FEM Radiation and Conduction Modeling

Panczak

Ring

Welch

1998

SAE Technical Paper Series

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Thermal engineering has long been left out of the concurrent engineering environment dominated by CAD (computer aided design) and FEM (finite element method) software. Current tools attempt to force the thermal design process into an environment primarily created to support structural analysis, which results in inappropriate thermal models. As a result, many thermal engineers either build models "by hand" or use geometric user interfaces that are separate from and have little useful connection, if any, to CAD and FEM systems. This paper describes the development of a new thermal design environment called the Thermal Desktop. This system, while fully integrated into a neutral, low cost CAD system, and which utilitizes both FEM and FD methods, does not compromise the needs of the thermal engineer. Rather, the features needed for concurrent thermal analysis are specifically addressed by combining traditional parametric surface based radiation and FD based conduction modeling with CAD and FEM methods. The use of flexible and familiar temperature solvers such as SINDA/FLUINT is retained.

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Thermal Synthesizer System: An Integrated Approach to Spacecraft Thermal Analysis

Cited by 15 publications

References 1 publication

Advances in Thermal Modeling and Analysis of Satellites

Advances in Thermal Modeling and Analysis of Satellites

<title>Modeling of Hall thruster plume sputtering and contamination</title>

A CAD-Based Tool for FDM and FEM Radiation and Conduction Modeling

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