Aerospace model flight test layout, and axisymmetric nose cone area configuration and design method thereof

Abstract

The invention discloses an aerospace model flight test layout, and an axisymmetric nose cone area configuration and a design method thereof. A mature axisymmetric boosting aircraft is used as a flighttest platform, the appearance of an axisymmetric nose cone area of the aircraft is partially replaced and redesigned, and the structure, control, power and other hardware systems of the flight test platform are kept consistent with those of an original aircraft; the appearance of the replaced local head cone is in a longitudinal body axis alternating symmetrical configuration, and the replaced local head cone is divided into four sections from the head to the tail. The first section is of a ball head cone structure, the second section is of a circular section-to-regular polygon section structure, the third section is of a regular polygon skirt structure, the fourth section is of a regular polygon section-to-circular section structure, the first section of ball head cone structure is usedfor related material assessment flight tests, the third section is of a related flow research measurement test section, and the second section and the fourth section are corresponding transition connection sections. The aerospace model flight test makes full use of the existing mature technology, the design cost can be greatly saved, and the design period is shortened.

Description

technical field [0001] The invention relates to the technical field of aircraft aerodynamic characteristics research and aerodynamic layout design, in particular to an aerospace model flight test scheme and layout design method that can be used for hypersonic aerodynamic flow research and related measurements. Background technique [0002] Model flight test (also known as "flying wind tunnel") is one of the three major methods of aerodynamics research. It closely cooperates with the other two research methods (computer numerical simulation and ground wind tunnel experiment), complements each other's 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 hypersonic aerodynamics research, model flight tests play an irreplaceable role in obtaining test data in real flight environments. At present, the research and development of hypersonic vehicles in my country...

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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