velocity coupling 中文意思是什麼
velocity coupling
解釋
速度耦合-
By numerical simulation, the servo system in this paper greatly reduces the aeroelastic stability. the structural flitter added to the system can reduce the coupling effect of servo system and structure mode and increase the flutter velocity
通過數值模擬發現，伺服系統會降低原有氣動彈性系統的穩定性，結構陷波器的引入可以減弱伺服系統和結構模態的耦合。 -
Around 40 ; the neutral curve obtained by the growth rates of the temperature fluctuation has a ringlike curve separated from the main branch of nachtsheim s calculation by velocity fluctuation at the lower grashof number side ; and its phase velocity is close to the maximum mean velocity where the critical layer of the eigenmode locates. the thermal fluctuation decays rapidly as the nondimensional frequency above 0. 4, so that it means that the coupling effect between instability wave generated by buoyancy fluctuation and velocity waves by invicid instability seems weak enough for their critical layers in the range of the nondimensional frequency
詳細研究了自然對流邊界層中最早失穩的浮力振型的功率譜波長波速與臨界層位置等基本特徵和它為主導其他振型尚未失穩時按線性理論得到的3種相互獨立振型的振幅分佈。系統地測量了它所對應的溫度和速度漲落的振幅增長規律和中性曲線，實驗結果表明，溫度漲落的中性曲線在低格拉斯霍夫grashof數 -
The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。 -
A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm
在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。 -
In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面，由於zno具有很大的機電耦合系數，而aln的聲表面波傳播速度較高，因此若zno和aln相結合，則不僅具有大的機電耦合系數，而且具有很高的聲表面波速度，這非常適合於製造高頻聲表面波器件。 -
The increasing of the width of the groove makes the phase velocity decreased largely but almost no effects on the bandwidth, and the coupling impedance enhanced
槽口寬增大相速減小較多，頻寬幾乎沒有什麼變化，耦合阻抗增大。 -
With the radius of the center conductor increasing, the phase velocity is also decreased a lot, the bandwidth is relatively widened, and the dispersion of the structure is weakened but the coupling impedance is lowered
軸半徑增大，相速明顯減小，頻寬有一定程度的增加，色散減弱，耦合阻抗值降低。 -
( c ) for the helical swallow - tailed structures with same groove width, the deep groove depth one which is suitable for the use in a interaction system of high power twts, has the largest coupling impedance and the lowest phase velocity in comparison with the other different groove profiles
（ 3 ）具有相同槽日寬度的燕尾形螺旋槽結構在槽深度較深情況下用作大功率行波管的互作用系統具有最大的耦合阻抗和最低的相速。 -
The results show that the wayside noise increases 8db - 12db, if the train ' s velocity increase two times ; and increases 3 db, if the number of axles increase tow times ; and decreases 3db, if the distance far away from the track increase tow times damping loss factor increases, the wayside noise decreases ; coupling loss factor increase, the wayside noise increase
預測結果表明：列車通過時，在其他條件不變的情況下，列車速度增加一倍，輪軌輻射噪聲大約增加8db 12db ；列車軸數增加一倍，輪軌輻射噪聲大約增加3db ；預測點距軌道距離增加一倍，輪軌輻射噪聲大約降低3db 。 -
With the development of material technology, information technology, automation control technology, aeronautics and astronautics technology, the modern flight vehicles are required of high velocity, light structure, great flexibility and super maneuverability, which lead to the serious aeroelastic effects such as aeroservoelasticity, the coupling among the aerodynamics, structure, and control system
隨著材料技術、信息技術、控制技術以及航空航天技術本身的飛速發展，飛行器開始向高速度、輕結構、大柔性、超機動的方向發展，氣動彈性效應更加嚴重，從而引發了氣動、結構、控制系統相互耦合的氣動伺服彈性力學問題。 -
Numerical results show that the bubble concentration distribution can be predicted by using the two - way coupling of the fluid and the bubble motion, and adding the wall lift force into the bubble motion equation, and the fluid velocity, turbulence intensity and shear stresses modified by the bubble motions can also be revealed
數值模擬結果表明，通過加入壁面升力和採用雙向耦合方法，可以較準確地預測氣泡濃度分佈和揭示氣泡流動對流體湍流結構的影響。 -
Range - velocity decoupling is one of important scientific research directions. it is emphasis of the paper, too. someone presented a method of changing cycle lfmcw radars to eliminate range - velocity coupling
其中運動目標的距離速度耦合是線性調頻連續波雷達一個重要的研究方向，也是本文研究的重點。 -
Lfmcw echo is modulated by doppler frequency. according to the characteristic, moving targets with different ambiguous velocities could be classified via mtd, but the range - velocity coupling problem still exists
線性調頻連續波雷達回波同脈沖雷達一樣受到了多普勒頻率的調制，通過動目標檢測（ mtd ）可抑制雜波，檢測運動目標。 -
Thermal and structure character of straight reheating furnace were analyzed in csp technological process. coupling with heat conduction differential equations of the thin slab and the furnace lining, the mathemat ical model of heat transfer is established in the long one dimension furnace by using zone method for making the model of radiant heat transfer. the effect of the moving velocity and kinds of the slab on temperature distribution in the furnace is discussed based upon the solutions to the mathematical model
通過分析csp工藝中直通式輥底加熱爐的熱工及結構特性，採用區域法建立爐內輻射換熱數學模型，與加熱爐內連鑄坯及爐襯的一維導熱方程相耦合，建立長一維直通式輥底加熱爐爐內傳熱數學模型.通過對數學模型的求解，研究分析了不同的薄板坯移動速度及鋼種對加熱爐爐內溫度分佈的影響 -
Based on the analysis of echo signal and ambiguity function of lfmcw radar, this dissertation advances new theories of lfmcw radar signal detection and estimation and eliminates range - velocity coupling using mtd - frequency domain pairing
在對lfmcw雷達回波信號和lfmcw雷達模糊函數進行分析的基礎上，提出了lfmcw雷達目標檢測與參數估計方法，並利用mtd -頻域配對法消除lfmcw雷達距離-速度耦合。 -
The dispersive characteristic of sws is a very important parameter of the rbwo and rtwt, other parameters such as the phase velocity, group velocity, coupling impedance can be derived from the linear dispersion relation. recently, the photonic crystal have attracted many attentions of the scientists, which has become a hot point of the research, it is also a ps
周期慢波結構色散特性是研究高功率微波器件的一個重要參量，其他重要特性如相速、群速、耦合阻抗等參量都可以從色散關系衍生出來，準確，快速獲得周期電磁結構的色散特性就顯得尤為重要。 -
In the paper, stratified flows with combined temperature and salinity are investigated on unstructured computational grids. first, unstructured, collocated finite volume method for navier - stokes equations is developed under the philosophy of generality. the pressure - velocity coupling is treated using simple - like algorithm and explicit correction step technique is applied to speed the convergence rate
本文從該類研究的難點入手，首先，採用單元中心的有限體積法開發了通用性強，易擴展的非結構同位網格數學模型求解n - s方程，壓力校正採用simple （ simplec ）演算法，並採用顯式校正步法（ explicitcorrectionstep ）對simplec演算法進行了顯式校正。 -
Recently years, the hot research directions of signal processing concentrate on the new theories of lfmcw radar signal detection and estimation, the new methods of eliminating range - velocity coupling, etc. a series of accomplishments have been achieved
當前， lfmcw雷達信號處理的研究熱點集中在目標檢測與參數估計方法、運動目標距離-速度去耦合方法等方向上，並已取得一系列成果。 -
The method first realizes detection and classification of moving targets with different ambiguous velocities via mtd in order to simplify the spectrum of beat signal, and then eliminates moving targets " range - velocity coupling with frequency domain pairing
該方法首先通過mtd實現對不同模糊速度目標的檢測和分類，簡化差拍信號頻譜環境，然後利用頻域配對法實現動目標的距離速度去耦。 -
By considering the longitudinal velocity coupling effects on the other dimensions of the underwater vehicle, a motion controller is presented
根據地形跟蹤的方法提出基於虛擬聲納的路徑跟蹤控制方法，並通過考慮縱向速度對于其他各個白由度運動的影響設計了運動控制器。
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