Transactions of Nanjing University of Aeronautics & Astronautics
Two-Way-Coupling Method for Rapid Aerothermoelastic Analyses of Hypersonic Wings
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Abstract:
Several types of coupling methods for resolving aerothermoelastic problems associated with hypersonic wings are summarized, and the appropriate coupling methods for engineering calculations are selected. Then, the calculation and analysis methods for the subdisciplines in this field are introduced, and the time step issue is discussed. A two-way-coupling rapid static aerothermoelastic method for analyzing hypersonic wings is proposed. This method considers thermal effects and is used to conduct an aerothermoelastic response analysis for a hypersonic wing. In addition, the aerodynamic force, heat flux, structural deformation and temperature field are obtained. The following three conclusions are drawn. First, the heating effect has a significant impact on the static aeroelastic response of hypersonic wings; therefore, thermal protection shields are essential. Second, the application of thermal protection shields reduces the differences in the calculation results between the one- and two-way-coupling methods. Third, hypersonic wings exhibit large thermal deformation under high-temperature environments, and in certain cases, the thermal deformation is even larger than the deformation caused by aerodynamic force.
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CHINA AERO-SCIENCES
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