文档介绍：Coupled Fluid-Thermal-Structural Modeling and
Analysis of Hypersonic Flight Vehicle Structures
Dissertation
Presented in Partial Fulfillment of the Requirements
for the Degree Doctor of Philosophy in the Graduate School
of The Ohio State University
By
Adam John Culler, .
Graduate Program in Aeronautical and Astronautical Engineering
The Ohio State University
2010
mittee:
Jack J. McNamara, Advisor
Jen-Ping Chen
Somnath Ghosh
Mo-How Herman Shen
Copyright by
Adam John Culler
2010
Abstract
This dissertation describes coupled fluid-thermal-structural modeling and analy-
sis of a semi-infinite insulated metallic panel and a blade-stiffened carbon-carbon
skin panel for aerothermoelasticity and forced response prediction in hypersonic
flow.
The United States Air Force’ goals of affordable, reusable platforms capable
of sustained hypersonic flight and responsive access to space depend on the abil-
ity to predict the response, the degradation, and ultimately the life of structures
bined, extreme aerodynamic heating and fluctuating pressure loads.
However, the necessary modeling and prediction capabilities are severely limited
in mercial software due to the inability to seamlessly address multi-
coupled, multi-scale fluid-thermal-structural interactions. Moreover, because of
plexity and expense of putational methods, the capability is
needed to define the necessary level of coupling a priori.
The aim of this dissertation is to develop coupled fluid-thermal-structural anal-
ysis methodology for response prediction bined, extreme environments.
Furthermore, it seeks to identify key characteristics (., trajectories, operating
ii
conditions, and structural configurations) that determine the level of coupling
needed for different situations. An additional focus is the targeted use of simpli-
fied temporal coupling strategies for reducing putational expense of hy-
personic aerothermoelasticity and forced response prediction over lo