16 September 2011 High-precision thermal, structural, and optical analysis of an external occulter using a common model and the general purpose multi-physics analysis tool Cielo
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Abstract
The efficient simulation of multidisciplinary thermo-opto-mechanical effects in precision deployable systems has for years been limited by numerical toolsets that do not necessarily share the same finite element basis, level of mesh discretization, data formats, or compute platforms. Cielo, a general purpose integrated modeling tool funded by the Jet Propulsion Laboratory and the Exoplanet Exploration Program, addresses shortcomings in the current state of the art via features that enable the use of a single, common model for thermal, structural and optical aberration analysis, producing results of greater accuracy, without the need for results interpolation or mapping. This paper will highlight some of these advances, and will demonstrate them within the context of detailed external occulter analyses, focusing on in-plane deformations of the petal edges for both steady-state and transient conditions, with subsequent optical performance metrics including intensity distributions at the pupil and image plane.
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Claus Hoff, Claus Hoff, Eric Cady, Eric Cady, Mike Chainyk, Mike Chainyk, Andrew Kissil, Andrew Kissil, Marie Levine, Marie Levine, Greg Moore, Greg Moore, } "High-precision thermal, structural, and optical analysis of an external occulter using a common model and the general purpose multi-physics analysis tool Cielo", Proc. SPIE 8127, Optical Modeling and Performance Predictions V, 81270M (16 September 2011); doi: 10.1117/12.899355; https://doi.org/10.1117/12.899355
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