unsteady flight 中文意思是什麼
unsteady flight
解釋
不穩定飛行-
Many factors were considered in the algorithm such as the helicopter nonlinear flight dynamic model, the time delay of rotor wake, the air compressibility at advancing blade, the stall of retreating blade, the unsteady flapping motion of rotor blades and the aerodynamic interaction among rotor, fuselage, tail rotor and empennage
根據這一方法可以確定為完成直升機機動飛行所需的駕駛員操縱輸入及直升機的飛行速度、角速度和飛行姿態的變化歷程。 -
A mathematical model reflecting the tilt rotor unsteady and nonlinear aerodynamic characteristics in the longitudinal channel is presented in the paper. in the full flight envelope, the rotor thrust continues tilting and the aerodynamic forces of each component change as a function of airspeed and nacelle angle
在整個飛行包線內，旋翼的推力矢量方向不斷變化，飛機各部件的氣動力隨發動機短艙傾角和空速的變化而變化，因而飛機的飛行動力學有很強的非定常、非線性特性。 -
Enhanced unsteady and nonlinear rotor wake model for real - time flight simulation
一種適合飛行模擬應用的非定常非線性旋翼尾跡增強模型 -
The unsteady flow around helicopter rotor in forward flight was numerically simulated by solving 3 - d euler ' s equations
採用三維非定常歐拉方程數值模擬了旋翼前飛非定常流動。 -
This model is formulated as a non - linear state - space representation of helicopter flight dynamics, incorporating with blade element unsteady aerodynamics, a finite state dynamic inflow wake model, and flapping / lead - lag blade dynamic model. the formulation of the coupled rotor and fuselage equations enables the use of common solution techniques for trim and linearization in arbitrary steady flight condition as well as control response calculations
本項研究針對新機研製過程必須解決的品質評定、飛控系統設計等問題，按照ads - 33軍用品質規范的要求，建立了一個較完整的直升機非線性的、具有狀態空間表達形式的飛行動力學模型，進行了模型驗證工作，並以某樣例直升機為例，計算了ads - 33品質規范（ 3 -
Flutter is the most important instable problem and it restricts the flight envelope and performance of a vehicle. aeroservoelasticity, including active flutter suppression technology, is a multidisciplinary optimization technology that studies the interaction of flexible structure, unsteady aerodynamics and flight control system
以主動顫振抑制系統設計為代表的氣動伺服彈性力學（ ase ）是一門涉及柔性結構、飛行器運動引起的定常和非定常氣動力以及飛行控制系統相互作用的多學科技術。 -
By means of dual - time stepping method and moving grids technique, we solved the 3 - d unsteady euler ' equations for helicopter rotor in forward flight, and obtained the near - field hsi noise
為了多槳旋翼旋轉、變距等復合運動的準確描述，採用了多塊分區運動網格技術。
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