An aerospace model flight test layout, and its axisymmetric nose cone region configuration and design method

Abstract

The invention discloses a flight test layout of an aerospace model, and the configuration and design method of its axisymmetric nose cone area. A mature axisymmetric booster aircraft is used as a flight test platform, and the shape of its axisymmetric nose cone area is partially replaced and redesigned. The structure, control, power and other hardware systems of the flight test platform are consistent with the original aircraft; the shape of the replaced partial nose cone is a rotationally symmetrical configuration along the longitudinal body axis, with four sections from the head to the tail. The first section is a ball-end cone configuration, the second section is a circular section to a regular polygonal section configuration, the third section is a regular polygon skirt configuration, and the fourth section is a regular polygon section to a circular section configuration. The nose cone configuration is used for the relevant material assessment flight test, the third section is the relevant flow research and measurement test section, and the second and fourth sections are the corresponding transition connection sections. The flight test of the aerospace model makes full use of the existing mature technology, which can greatly save the design cost and shorten the design cycle.

Description

technical field [0001] The invention relates to the technical field of aerodynamic characteristic research and aerodynamic layout design of aircraft, in particular to an aerospace model flight test scheme and layout design method which can be used for hypersonic aerodynamic flow research and related measurement. Background technique [0002] Model flight test (also known as "flying wind tunnel") is one of the three major methods of aerodynamics research. It is closely coordinated with the other two research methods (computer numerical simulation and ground wind tunnel experiment), complements its advantages, and forms a closed loop. The most important technical support for the aerodynamic layout design of aerospace vehicles. In the field of aerodynamics, especially in the field of hypersonic aerodynamics, model flight tests play an irreplaceable and important role in obtaining test data in real flight environments. At present, the development of hypersonic vehicles in my co...

AI Technical Summary

Problems solved by technology

[0003] Compared with the other two research methods, the model flight test has disadvantages such as high cost and long period

Model flight tests usually require a coupled layout design of the test aircraft (including flight test models and boosters, etc.) The design cycle of the test model is very long, and the development cost is also high

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