Spin recovery from a fully-developed-oscillatory-stable-flat spin is performed in this article using thrust vector control (TVC) and compared with the conventional mode of recovery. TVC dynamics is modeled and then added to the standard aircraft dynamics. TVC command is designed as a function of angle of attack in the pitch and yaw direction and optimally used with aircraft primary controls (APCs). The APC is designed using the sliding-mode control technique. The spin recovery profile is demonstrated on F-18 high alpha research vehicle to test the efficacy of the proposed algorithm. Results show that with the combined strategic use of TVC and APC, spin recovery time is drastically reduced because of reduced saturation of APC. Thus, altitude decrease during spin recovery also reduces, thereby gaining on final exit altitude to level flight, compared to recovery using only APC. Thus, TVC is proven in this article to be a powerful corrective contributor to spin recovery, increasing margin of safety in terms of excessive altitude loss.

中文翻译：

---

具有高度损失最小化的滑模控制和基于战略推力矢量的飞机平自旋恢复


本文使用推力矢量控制（TVC）从完全发展的振荡稳定平坦自旋中执行自旋恢复，并与传统的恢复模式进行比较。对 TVC 动力学进行建模，然后将其添加到标准飞机动力学中。 TVC 命令被设计为俯仰和偏航方向迎角的函数，并且最适合与飞机主控制 (APC) 一起使用。 APC采用滑模控制技术设计。在 F-18 高阿尔法研究飞行器上演示了自旋恢复曲线，以测试所提出算法的有效性。结果表明，通过结合使用 TVC 和 APC，由于 APC 饱和度的降低，旋转恢复时间大大缩短。因此，与仅使用 APC 进行恢复相比，旋转恢复期间的高度下降也减少了，从而获得了水平飞行的最终出口高度。因此，本文证明 TVC 是旋转恢复的强大纠正贡献者，增加了高度损失过多的安全边际。