Review on Key Technologies for Hypersonic Morphing Aircraft
Hypersonic morphing aircraft have the potential to enhance the versatility of aircraft across a wide range of speeds and altitudes,which holds significant strategic importance in both civil and military sectors.This paper focuses on the research progress of hypersonic morphing aircraft,discussing advancements and current status in domestic and international hypersonic projects as well as morphing aircraft projects.The classification and introduction of main morphing methods of existing hypersonic morphing aircraft are also presented.This paper summarizes the technical research challenges in various aspects of hypersonic morphing aircraft,including design methods and theories for morphing mechanisms,high thrust-to-weight ratio and rapid response drive designs,load-bearing deformable skins,and integrated structures for load-bearing and thermal protection.This paper concludes by outlining potential research directions for the future development of hypersonic morphing aircraft,aiming to provide valuable insights for subsequent studies in this field.