Time-varying linear reduced order model for hypersonic aerothermoelastic analysis

Damien Guého, Puneet Singla, Daning Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The coupled analysis between the flight dynamics, structural dynamics, heat transfer, and hypersonic aerothermodynamics, viz. AeroThermoServoElasticity (ATSE), is a key ingredient for evaluating the performance, stability, and reliability of hypersonic vehicles. A thorough performance analysis for ATSE is computationally intractable with high fidelity models for each discipline. Hence, there is a need to develop accurate reduced order models (ROM) for aerothermodynamics as well as thermoelasticity. This work exploits the latest advances in dynamic system theory to develop a reduced order model for aerothermoelastic analysis. The Time-Varying Eigensystem Realization Algorithm (TVERA) is used to identify a linear time varying (LTV) model from a high fidelity computational framework with guaranteed observability. The simulations performed show a good agreement between the reduced-order and high fidelity models.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-18
Number of pages18
ISBN (Print)9781624106095
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: Jan 11 2021Jan 15 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period1/11/211/15/21

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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