A correlation analysis method for aerodynamic and thermal flight test data of high-speed aircraft

Abstract

The invention discloses an association analysis method for high speed aircraft pneumatic heat flight test data, which comprises steps of analyzing and fitting the three-dimensional streamline relation based on the three-dimensional streamline relation of the heat flow between the first typical part and the second typical part of the aircraft to obtain an association simple form of he heat flow between the first typical part and the second typical part. According to the association simple form, the pneumatic heat data of different typical parts are subjected to association analysis. With the method, the utilization efficiency of the pneumatic heat data of the typical parts is improved, the testing cost is reduced, and the testing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, and in particular relates to a correlation analysis method for aerodynamic thermal flight test data of a high-speed aircraft. Background technique [0002] Flight test is the most direct and effective means to obtain the material response data under the real service environment and its action. Flight test data can not only verify thermal environment calculation models and methods, but also provide data support for research on key and difficult issues in the thermal environment field. [0003] However, due to the high cost of flight tests, long preparation period, difficult risk control, and the influence of many factors such as flight safety, structural constraints, measurement capabilities, and economic costs, the effective measurement data obtained by a flight test is very limited and difficult to obtain. At the same time, the aerothermal data of each typical part of the aircraft are ...

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Problems solved by technology

[0003] However, due to the high cost of flight tests, long preparation period, difficult risk control, and the influence of many factors such as flight safety, structural constraints, measurement capabilities, and economic costs, the effective measurement data obtained by a flight test is very limited and difficult to obtain. Acquire aerodynamic and thermal data of typical parts of the aircraft at the same time

To obtain the aerothermal data of all typical parts of the aircraft, it is usually necessary to conduct multiple flight tests, which greatly increases the test cost and test cycle

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