Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8057576 | Aerospace Science and Technology | 2018 | 17 Pages |
Abstract
With the mathematical and physical description of hypersonic intrinsic aerothermoelastic behaviors, the present paper proposes a time-adaptive multi-physics coupling strategy for fluid-thermal-structural modeling and analysis. A framework of hypersonic computational coupling dynamics (HyCCD) is developed for integrating an independently developed program solving hypersonic aerothermodynamics with a finite element analysis professional software. The embedded adaptive time-step approach, hybrid interpolation strategy and grid deformation method have taken into consideration the physical characteristics of coupling variables and their properties. A typical low-aspect-ratio hypersonic wing is considered as the simulation model to study the impact of sustained aerothermodynamic loads on the inherent vibrations, thermal modals and their variations. The time-adaptive loosely coupled analysis of aerothermoelastic behaviors along flight trajectory provides a reliable, applicable and efficient prediction for the thermal-structural-vibrational response of hypersonic wing structures.
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Authors
Fang Chen, Hong Liu, Shengtao Zhang,