unsteady motion 中文意思是什麼
unsteady motion
解釋
不穩定運動-
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。 -
For obtaining the numeral solutions of round elastic plates in axisymmetrical deformation with varying - thickness in nonlinear deformation in the unsteady electromagnetic field and mechanical field, by establishing the equations of motion, the equations of distortion, the equations of lorentz force, the equations of electronic dynamic mechenical, and adopting iterative method, we gained the nonlinear magneto - elastic calculation method and outcome of current - carrying shell, and gained the influencing degree toward mechanical parameter of varying thickness round ferreous plates in the electromagnetic field and mechanical field
摘要為了獲得內邊界固定的環形導電薄板在均布力與橫向磁場作用下的變形問題的數值解，通過建立運動方程、變形方程、電動力學方程和洛侖茲力方程，運用迭代法得出了載流板殼的非線性磁彈性的計算方法和結果，以及機械場、電磁場對鐵質變厚度圓板各力學參量的影響程度。 -
The wing is modeled structurally by vibrational modes, which are used as amplitude of motion by a finite element analysis. conservative full - potential equation and three dimensional unsteady euler equation are used to compute the unsteady transonic flows around airfoil and wings under simple harmonic motion
以給定機翼模態分佈下機翼上各點的模態值作為運動幅值，以三維非定常全位勢方程和三維非定常euler方程為控制方程，求解三維機翼簡諧運動下的非定常氣動力。 -
Study of crossflow topology of unsteady vortex motion over a delta wing
三角翼非定常旋渦運動橫截面拓撲結構研究 -
Within this analytical model, the factors as unsteady aerodynamic and blade flap / lead - lag coupled motion are both considered
旋翼機體耦合動力學模型考慮了非定常空氣動力和槳葉揮舞擺振運動耦合。 -
The act or an instance of wobbling ; unsteady motion
前後搖晃搖擺不定的動作或實例；不穩定的行動 -
Finally, the 2d unsteady navier - stokes flow solver is coupled with two - degree - of - freedom flutter motion equation in time domain to investigate the flutter characteristics of several supercritical airfoils
最後，本文將二維非定常nayier - stokes方程解算器與顫振運動方程耦合，研究了超臨界翼型的跨音速顫振特性。 -
The motion equations of the unsteady air and water in jig are obtained by the method of fluid dynamics, and the fluid parameters in jig at different characteristic curve of air valve are calculated by use of numerical method
用流體力學方法導出了跳汰機內空氣水動力學體系的運動規律，並通過數值計算得出了不同風閥期特性下的跳汰機內的水流運動。 -
In this dissertation, finite volume method, explicit runge - kutta time - marching scheme and " dual - time stepping method " are employed to solve the governing equations. both inviscid and viscous steady flows around two - dimensional cylinder, flat - plate and airfoils are simulated, and unsteady flows for airfoil in arbitrary motion are also calculated
控制方程採用中心格式有限體積法進行空間離散，對于定常流動，運用runge - kutta顯式多步法進行時間推進求解，非定常流動採用隱式時間離散的「雙時間法」 （ dual - timesteppingmethod ）進行推進求解。 -
This method makes it possible for investigating the unsteady nonlinear potential flow in a complicated environment with higher efficiency. the aerodynamic forces of a wing in couple motion of heave and pitch with ground effect are analyzed in detail based on the numerical result. it is shown that a thrust force exists when the wing is in heave motion
深入系統地分析了存在表面效應時機翼運動規律和氣動力之間的關系，研究結果表明，機翼升沉運動產生的推力與升沉速度幅值的平方成比例，推力和推進效率和振蕩頻率成反比；機翼的俯仰運動可以調節推力和推進效率，但是單純的俯仰運動不會產生推力。 -
It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
（ 2 ）建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程，並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為，利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程，重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。 -
The program can compute the array shape and attitude on steady straight runs at different speeds, and solve unsteady motions ( for example loop turn motion ) and other motions
程序能夠計算不同航速定常直航狀態下列陣的陣形與姿態，可解決不定常運動（例如回轉運動） 、考慮海流等多種運動狀況的陣形預測。
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