unsteady aerodynamics 中文意思是什麼
unsteady aerodynamics
解釋
非定常流空氣動力學- unsteady : adj. 1. 不穩固的。2. 不堅定的；動搖的；易變的，反復無常的，不可靠的。3. 行為古怪的；品行不好的。vt. 使不穩定，使動蕩。adv. -ily ,-iness n.
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2. an unsteady, nonlinear state - space airfoil aerodynamics model was developed with onera dynamic stall model
對於後行槳葉的動態失速行為，引入了對翼型實驗數據不敏感，並也具有狀態空間形式的onera動態失速模型。 -
Investigated the basic theory of the coupled cfd / csd simulation of nonlinear unsteady aerodynamics and prepared basic data for reduced order model. 2
探討了cfd csd耦合技術預測非線性非定常氣動力的基本原理，為非定常氣動力降階模型準備數據。 -
Investigated the reduced order model for nonlinear unsteady aerodynamics based on volterra series, especially the identification method of the volterra kernels and studied the application domain and accuracy of the model
研究了volterra級數在非定常氣動力降階模型中的應用，特別是volterra核的計算，並對volterra級數模型的適用范圍和精度進行了評價。 -
Accurate calculation of aircraft steady and unsteady aerodynamics and flutter characteristics, especially in the transonic speed range is a crucial problem for aircraft designers. it is very important for us to develop an efficient, accurate, robust navier - stokes / euler flow solver that could be used to study transonic steady and unsteady flowfields
飛行器的定常和非定常氣動力的準確數值求解及顫振特性研究，特別是跨音速范圍內的準確數值求解及研究，一直以來都是飛行器設計工作者必須面對的重要研究難題。 -
Based on linear state space model, put forward two elementary practical methods of constructing bilinear state space model for nonlinear unsteady aerodynamics with contribution to nonlinear ase technology
2在線性狀態空間模型的基礎上，初步提出了基於volterra核建立非線性非定常氣動力雙線性模型的兩種實用方案，向非線性ase領域邁進了一步。 -
Second, the structural dynamic equations for blades are introduced in this paper. through numerically solving the aerodynamics - structure coupled equations, a 2 - d unsteady viscous flow in a single cascade is investigated under flow - structure coupled conditions, and a preliminary analysis of the cascade flutter is prosecuted
其次，本文引入葉片結構動力學方程，通過數值求解氣動結構耦合方程體系，研究了氣固耦合條件下葉柵內的二維非定常粘性流動，並初步進行了葉柵的顫振分析。 -
In chapter 4, the aeroelastic model of the whole test rig is first established by using jones ’ s approximation of theodorsen ’ s unsteady aerodynamics load. then, the numerical simulations and wind tunnel experiments for the sub - optimal flutter suppression of the airfoil model are presented
數值模擬和風洞實驗研究表明，以超聲電機為控制面作動器可以有效地抑制翼段模型的顫振，顫振臨界速度提高了13 . 4 % ，數值模擬和風洞實驗結果基本吻合。 -
Design method of active control law based on reduced order model of unsteady aerodynamics for aeroelasticity
基於非定常氣動力低階模型的氣動彈性主動控制律設計 -
The paper investigated some problems related to the application of minimum - state approximation of the unsteady aerodynamics through two typical models, and pointed out the relative conclusions
摘要用兩個典型的對象，研究了非定常空氣動力最小狀態擬合方法應用中的問題，並給出了相應的結論。 -
3. investigated the direct model construction method of unsteady aerodynamics state space equation from volterra kernels, including linear state space model and bilinear state space model. the general model construction method for ase was brought forward
研究了基於volterra核直接建立非定常氣動力狀態空間模型的方法，包括線性狀態空間模型和雙線性狀態空間模型，並提出了將其用於ase系統建模的一般方法。 -
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。
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