A Method for Hypersonic Aerothermoelasticity
Aerodynamic heating will be caused when a hypersonic vehicle is in flight, so it should be taken into account when an aeroelastic problem is analyzed. A model based on the loose coupling method for aerothermoelasticity is explored in this paper. The aerodynamic loads are solved by a rapid algorithm of Newtonian-Impact, which is fit for hypersonic vehicles. Firstly, aerodynamic heating analysis based on the initial configuration of hypersonic vehicle is carried out; secondly, the heat conduction is analyzed, then the vehicles temperature distribution and a corresponding model is obtained; finally, a fluid-structural coupling analysis under the temperature field is performed. A model like X-20 is analyzed as a numerical example in this paper, and the influence analysis of aerodynamic heating on the static aeroelasticity is successively carried out. The results indicate that the aerodynamic heating has a high influence on the structural deformation and the aerodynamic forces. Furthermore, the method in this paper has a great efficiency in aerothermoelastic analysis and a certain practical value in engineering application.
Hypersonic Aerothermoelasticity Static aeroelasticity Engineering rapid algorithm of aerodynamic
Wang Yongzhi Zhang Xu Zhang Huashan Jin Xin Zhang Weimin
China Academy of Aerospace Aerodynamics, Beijing, P .R. China, 100074
国际会议
The 8th Sino-Russia High-speed Flow Conference(第八届中俄高超声速流体力学研讨会)
上海
英文
44-50
2011-11-21（万方平台首次上网日期，不代表论文的发表时间）