Iterative design method for hypersonic-velocity aircraft model

Abstract

The invention discloses an iterative design method for a hypersonic-velocity aircraft model. The method comprises the steps that a parameterized model of a hypersonic-velocity aircraft is built through a geometric design method; a key model parameter of the hypersonic-velocity aircraft is extracted through a sensitivity approach, the parameterized model is simplified, and a surrogate model of the hypersonic-velocity aircraft for the iterative design is obtained; the model parameter of the hypersonic-velocity aircraft is optimized by using a pigeon-inspired optimization algorithm, and the balance states of the model in different flight conditions are obtained; a desired performance index of the hypersonic-velocity aircraft is determined, the balance states of the model are subjected to iteration, and the optimal design model of the aircraft is obtained. In complex flight conditions, the optimal design model is obtained by using the pigeon-inspired optimization algorithm according to the desired performance index, the optimal model parameter meeting the desired performance index is quickly obtained, all flight envelopes can be covered, and a good model optimizing tool is provided for the design of the hypersonic-velocity aircraft.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to an iterative design method for a hypersonic aircraft model. Background technique [0002] Hypersonic aircraft has great military and civilian value due to its high Mach number and high-altitude flight characteristics. The hypersonic flight system integrates multi-disciplinary cutting-edge technologies, and the interaction between disciplines is complex. It is necessary to obtain the optimal aircraft model through comprehensive design. [0003] However, the traditional hypersonic vehicle modeling process is often based on wind tunnel and test data, and the workload is huge and expensive; in addition, the data acquisition process takes a long time, which is not conducive to the optimal iterative design of the model, and the control effect is difficult to integrate with other overall parameters. fusion. The present invention proposes a hypersonic vehicle model iterative design me...

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Problems solved by technology

[0003] However, the traditional hypersonic vehicle modeling process is often based on wind tunnel and test data, and the workload is huge and expensive; in addition, the data acquisition process takes a long time, which is not conducive to the optimal iterative design of the model, and the control effect is difficult to integrate with other overall parameters. fusion

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