Foldable air rudder of hypersonic flight vehicle

Abstract

The invention provides a foldable aerial rudder of a hypersonic aircraft. The foldable aerial rudder comprises a rudder surface assembly, a tiller assembly and a rudder surface fixing assembly. The control surface fixing assembly is rotatably connected with the tiller assembly through a transmission shaft, the control surface assembly is provided with a radial locking structure, the control surface fixing assembly is provided with an axial locking structure, and the radial locking structure and the axial locking structure are matched with a radial locking hole and an axial locking hole in the tiller assembly, so that the control surface assembly is locked in multiple directions at the same time after being automatically unfolded; the strength of the joint after the control surface assembly is unfolded is obviously improved; modular design is adopted, assembling is convenient, the transmission shaft and the torsional spring structure are designed in the air rudder, the overall structure is compact, and the sealing performance is good; the control surface assembly, the tiller assembly and the control surface fixing assembly are each provided with a heat-proof layer, the influence of aerodynamic heat on the internal structure in the hypersonic flight process can be effectively reduced, the stability, reliability and track precision of the aircraft in the flight process are improved, and the hypersonic stable flight requirement in the high-temperature and large-overload environment is met.

Description

technical field [0001] The invention relates to the technical field of air rudders, in particular to a foldable air rudder for a hypersonic aircraft. Background technique [0002] In recent years, more and more countries have paid more and more attention to hypersonic aircraft technology. It has developed from the basic research and exploration stage of concepts and principles to the development of engineering technologies such as hypersonic missiles, hypersonic reconnaissance aircraft, hypersonic transport aircraft, trans-atmospheric aircraft, and aerospace aircraft. application stage. With the increase of application scenarios, the foldable air rudder of hypersonic aircraft that is convenient for storage and transportation has become the focus of research. [0003] The foldable air rudder is an important actuator for hypersonic vehicle attitude adjustment, which determines the reliability, stability, maneuverability and trajectory accuracy of the flight. With the increas...

AI Technical Summary

Problems solved by technology

With the increase of flight speed, the folding rudder is faced with a severe aerodynamic and thermal environment. At present, there are few foldable air rudders that can meet the conditions of hypersonic applications, and it is also a research difficulty and hotspot in this field. The locking is reliable, and the folding rudder that can withstand high temperature and large overload is of great significance

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