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聯翼式飛機動態特性之探討

Study of the Dynamic Characteristic of a Joint-Wing Aero Plane

摘要


本文主要是在進行聯翼式飛機縱向穩態特性之研究。因此,本研究首先建立聯翼式飛機的非線性縱向動態方程式,並探討系統收斂至穩態之速度以及過衝的情況,並求得穩態時系統變數之問的關係函數。然後,本研究針對其平衡點作線性化,並做穩定性分析。結果顯示,此系統在臨界穩態速度以下飛行時,系統爲穩定。但是,由於兩個根較靠近僅虛軸,故其收斂時間較長。未來,需要設計控制法則來改善此一狀況。

並列摘要


The purpose of this research is to study the stability of the longitudinal dynamics of a joint wing aero plane. To achieve the goal, a nonlinear longitudinal dynamics model is derived. Then the stability of the system is discussed at different equilibrium points by characterizing the eigenvalues of the linear model at each equilibrium point. It is revealed that the system is stable at slow speed motion but the convergence is slow due to eigenvalues close to the virtual axes. Control laws will be developed to improve the system characteristics.

並列關鍵字

joint-wing stabilization vertical dynamics

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