An aerothermoelastic analysis framework with reduced-order modeling applied to composite panels in hypersonic flows. Huang, D. & Friedmann, P. P. Journal of Fluids and Structures, 94:102927, April, 2020. doi abstract bibtex This study describes the enhancement of a computational framework for aerothermoelasticity using novel model order reduction techniques and efficient coupling schemes. First, the fluid solver for hypersonic aerothermodynamics is accelerated using a reduced order model. The flexibility of the reduced order model is enhanced using a novel correction and scaling technique, which accounts for non-uniform temperature distribution, varying flight conditions and geometrical scales using analytical pointwise models. Secondly, based on the reduced order model, a tightly-coupled scheme and linearized stability analysis are developed for fast aerothermoelastic simulation of extended flight time and automatic identification of aerothermoelastic instabilities, respectively. The enhanced framework is accelerated by a factor of 104 so that near-real-time aerothermoelastic simulation is achieved. Finally, using the enhanced framework, the aerothermoelastic response of a generic skin panel is studied emphasizing the effect of flow orientation angle and material orthotropicity on the aerothermoelastic stability boundary. It is found that a combination of flow orientation angle and material orientation can significantly extend the aerothermoelastic stability boundary, i.e. the time elapsed before the onset of structural failure.
@article{huang2020,
title = {An aerothermoelastic analysis framework with reduced-order modeling applied to composite panels in hypersonic flows},
volume = {94},
issn = {0889-9746},
doi = {10.1016/j.jfluidstructs.2020.102927},
abstract = {This study describes the enhancement of a computational framework for aerothermoelasticity using novel model order reduction techniques and efficient coupling schemes. First, the fluid solver for hypersonic aerothermodynamics is accelerated using a reduced order model. The flexibility of the reduced order model is enhanced using a novel correction and scaling technique, which accounts for non-uniform temperature distribution, varying flight conditions and geometrical scales using analytical pointwise models. Secondly, based on the reduced order model, a tightly-coupled scheme and linearized stability analysis are developed for fast aerothermoelastic simulation of extended flight time and automatic identification of aerothermoelastic instabilities, respectively. The enhanced framework is accelerated by a factor of 104 so that near-real-time aerothermoelastic simulation is achieved. Finally, using the enhanced framework, the aerothermoelastic response of a generic skin panel is studied emphasizing the effect of flow orientation angle and material orthotropicity on the aerothermoelastic stability boundary. It is found that a combination of flow orientation angle and material orientation can significantly extend the aerothermoelastic stability boundary, i.e. the time elapsed before the onset of structural failure.},
language = {en},
urldate = {2023-08-09},
journal = {Journal of Fluids and Structures},
author = {Huang, Daning and Friedmann, Peretz P.},
month = apr,
year = {2020},
keywords = {Fluid–thermal-structure interaction, Hypersonic aerothermoelasticity, Linearized stability analysis, Panel flutter, Reduced-order modeling},
pages = {102927},
}
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Secondly, based on the reduced order model, a tightly-coupled scheme and linearized stability analysis are developed for fast aerothermoelastic simulation of extended flight time and automatic identification of aerothermoelastic instabilities, respectively. The enhanced framework is accelerated by a factor of 104 so that near-real-time aerothermoelastic simulation is achieved. Finally, using the enhanced framework, the aerothermoelastic response of a generic skin panel is studied emphasizing the effect of flow orientation angle and material orthotropicity on the aerothermoelastic stability boundary. It is found that a combination of flow orientation angle and material orientation can significantly extend the aerothermoelastic stability boundary, i.e. the time elapsed before the onset of structural failure.","language":"en","urldate":"2023-08-09","journal":"Journal of Fluids and Structures","author":[{"propositions":[],"lastnames":["Huang"],"firstnames":["Daning"],"suffixes":[]},{"propositions":[],"lastnames":["Friedmann"],"firstnames":["Peretz","P."],"suffixes":[]}],"month":"April","year":"2020","keywords":"Fluid–thermal-structure interaction, Hypersonic aerothermoelasticity, Linearized stability analysis, Panel flutter, Reduced-order modeling","pages":"102927","bibtex":"@article{huang2020,\n\ttitle = {An aerothermoelastic analysis framework with reduced-order modeling applied to composite panels in hypersonic flows},\n\tvolume = {94},\n\tissn = {0889-9746},\n\tdoi = {10.1016/j.jfluidstructs.2020.102927},\n\tabstract = {This study describes the enhancement of a computational framework for aerothermoelasticity using novel model order reduction techniques and efficient coupling schemes. 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