A construction of thermal basis functions for coupled structural - Thermal reduced order models

Raghavendra Murthy, X. Q. Wang, Andrew K. Matney, Marc Mignolet

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

2 Scopus citations

Abstract

The focus of this paper is on the formulation and assessment of a novel approach for the construction of a thermal basis to be used in coupled nonlinear geometric structural-thermal reduced order modeling efforts. The intent is to have this basis rely as little as possible on the existence of snapshots of the temperature distribution obtained by full order computations, i.e., finite element and CFD solutions, to reduce the numerical effort associated with their determination. To this end, the core of the basis is first constructed from the recently introduced optimum thermal modes which are the temperature distributions that most strongly affect the structural response and thus are independent of the applied heat flux. It is shown that this basis is not sufficient and thus a limited number of enrichments are introduced that do come from such full order computations and which complete the basis. The approach is demonstrated on a representative hypersonic panel in fully coupled aero-structural-thermal interaction.

Original languageEnglish (US)
Title of host publication58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104534
StatePublished - 2017
Event58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Other

Other58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
CountryUnited States
CityGrapevine
Period1/9/171/13/17

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ASJC Scopus subject areas

  • Mechanics of Materials
  • Architecture
  • Civil and Structural Engineering
  • Building and Construction

Cite this

Murthy, R., Wang, X. Q., Matney, A. K., & Mignolet, M. (2017). A construction of thermal basis functions for coupled structural - Thermal reduced order models. In 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 American Institute of Aeronautics and Astronautics Inc, AIAA.