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针对返回式滑翔飞行器在高马赫状态下的落区和航程难以大幅度调节的问题,采用Gauss伪谱法和序列二次规划法进行轨迹优化,实现最小航程设计;提出了航程压缩比的概念,建立了动力学模型和飞行约束体系,以类CAV-H飞行器为对象进行了仿真。研究表明,低空速度消耗和空间机动有益于减小航程;在指定纵平面内可将最小航程压缩至最大航程的42%;当落区在指定航向上且飞行器可偏离纵面做机动时,飞行器可返回离轨原点;通过轨迹优化,可以调节返回式滑翔飞行器的航程从而控制其落区范围。
Aiming at the problem that the landing glide range and flight range of the return gliding aircraft are difficult to be adjusted greatly in the high Mach state, Gauss pseudospectral method and sequential quadratic programming method are used to track optimization to achieve the minimum voyage design. The concept of voyage compression ratio is proposed, The dynamic model and the flight restraint system were established, and the simulation was carried out on the CAV-H aircraft. Studies have shown that low-altitude speed consumption and space maneuvers are beneficial for reducing range; in the specified longitudinal plane, the minimum range can be compressed to 42% of the maximum range; when the landing zone is in a specified heading and the aircraft can maneuver away from the longitudinal plane, Return to the origin of the derailment; through trajectory optimization, you can adjust the range of the return glide aircraft to control its landing range.