阻力擾動 的英文怎麼說

中文拼音 [zǔlìrǎodòng]
阻力擾動 英文
drag perturbation
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 阻力 : 1 （阻礙事物發展的外力） obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. Additive drag perturbation method for measuring active drag in swimming

    測量游泳動態阻力的附加阻力微擾動法
  2. 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。
  3. The rate gyro feedback provides positive dynamic stability and well-damped transient response to commands or disturbances.

    速度陀螺反饋提供正向動力學穩定性和對于指令式擾動的很好阻尼的瞬時響應。
  4. Unfortunately, becomeing a supplier to a transplant firm was proving to be very difficult for many north american - based fimrs. north american companies were often unfamiliar with the rigors of japanese jist - in - time inventory systems and demands for flexible production. a further problem frustrating the efforts of north american competitors, the japanese automarkers rarely changed suppliers

    不幸的是，與許多北美本地的企業相比一個移民的企業來說成為一個供應商的考驗是非常困難的.北美的公司通常都不熟悉日本的運行時編譯執行的技術財產目錄體系以及對多種產品的需求.更大的困難是來自北美競爭者的強力阻擾，這些日本的自動商店很少更換供應商
  5. The local current disturbance after bridge being built in qiantang estuary leads to correspond changes of riverbed near bridge. but there is not any impact on astronomical tide, runoff large - scaled river shape and riverbed after bridge being built. so it does n ' t change the formation of tidal bore at all after bridge being built, but there is some impact on the shape and intensity of tidal bore because of pier resistance

    在錢塘江河口建橋將引起局部水流的擾動及近區河床的相應變化，但不會對天文潮、徑流及大范圍河勢、河床產生影響，因而，建橋不會從根本上改變涌潮的產生，但橋墩阻力對涌潮形態和強度是有影響的。
  6. The principle of how to supply energy for system has also been studied. secondly, the orbiting satellites are affected by several perturbations. we put the main emphasis on the influence of the perturbations of the atmosphere drag and the earth ’ s eccentricity on the six orbital factors and the simulation ’ s accuracy

    其次，衛星在軌運行時將受到各種干擾力的影響，因此在研究精確地磁場模型電動力纜繩離軌系統的動力學特性的基礎上，著重研究了大氣阻力攝動和地球非球形攝動對衛星離軌過程中各軌道參數的影響。
  7. Air churning resistance

    空氣擾動阻力
  8. Firstly, under the assumption that the output driving torque generated by the stepper motor of the mirror is constant, such influence analysis is conducted. secondly, a mathematic model of the stepper motor is given. under the assumtion that the input impulse frequence is constant, the rotational motion of the stepper motor of the mirror with the mutual exertions of damping torque, friction torque and disturbance torque generated by satellite platform ' s attitude motion is simulated and analyzed

    對衛星平臺姿態振動對紅外相機掃描機構轉動的影響進行了系統深入的模擬分析:首先在步進電機驅動力矩一定條件下，模擬分析了星體姿態運動干擾力矩對紅外相機掃描鏡轉動的影響;接著建立了步進電機的數學模型，在步進電機輸入脈沖頻率一定條件下，模擬分析了步進電機在阻尼力矩、干摩擦力矩、平臺干擾力矩等負載轉矩的共同作用下的轉動情況。
  9. A detailed study has been made of the main problems of test rolling analog table simulation, including simulation of wave disturbance force / moment and attenuation force / moment of the ship. moreover, the adjusting method of test rolling analog table is given

    討論了試驗搖擺臺模擬船舶運動中幾個主要問題，包括海浪干擾力（矩） 、阻尼力（矩）的模擬及實哈爾濱工程大學博士學位論文現等；給出了試驗搖擺臺的調整方法。
  10. When multi - kinds of interference occur, such as the barrier, the circumstance of upgrade and downgrade resulting in the change of resistance, and electrical source ' s fluctuation, all those influence has a little influence on the speed of welding dolly and the invariable speed and the regulative speed can be realized

    當受到各種干擾（即行走過程中遇到障礙物或上坡、下坡等情況，小車的阻力發生變化及電源波動為主的突發干擾）時，焊接小車的行走速度幾乎不受影響，實現了焊接小車的恆速或變速行走。
  11. Based on the mechanism of slipstream interaction, described in this thesis is firstly the interaction of the propeller slipstream with the wing 、 fuselage and horizontal tail. subsequently, the changes in lift 、 drag and pitching moment are derived, giving an engineering model for the prediction of the increments in the aerodynamic characteristics caused by the interference between the propeller slipstream and the other parts of aircraft. this method offers a powerful means to the calculation of the aerodynamic interaction between the propeller and the aircraft, providing reliable data for the design of and aerodynamic calculation on propeller - powered aircraft

    本文以滑流干擾的機理為出發點，研究了螺旋槳滑流與飛機機翼、機身、平尾組合體之間的相互影響，推導出滑流引起的飛機升力、阻力和俯仰力矩的變化，給出了滑流干擾對機體氣動特性影響的工程估算方法，為研究螺旋槳與飛機部件之間的相互干擾提供了有力的工具，為以螺旋槳發動機為動力的飛機的設計和氣動計算提供可靠的依據。
  12. The set of these eigenvalues can be regarded as the eigenvalues of primary system approximately. this method not only can control the scale of the block - decoupling subsystems, but also achieves the reduced - order eigenvalue calculation for multi - machine power system. so this method can avoid the dimension disaster in the qr and calculate all the eigenvalues of large power system with the effect of damping windings considered

    這一方法可以控制分塊解耦子系統的規模，實現多機系統特徵值的降階計算，避免特徵值qr演算法的「維數災難」 ，同時為採用計及發電機阻尼繞組作用的詳細模型計算大型電力系統的全部特徵值、提高電力系統小擾動穩定分析的準確性提供了一種方法。
  13. Under different conditions, for example, with variable additional resists or system parameters, the system applies the variable structure controller to adjust the speed system with train. the results of simulation show the variable structure control can achieve a fast response, high stability under parametric variations and disturbances, with no overshoot. additionally, it has stability for the adjustment speed of atcs and provides the comfortable speed, for the travelers, and improves the system performance

    採用變結構理論分析在不同情況下，如附加阻力變化，系統參數變化等，模擬滑模變結構控制器控制的列車自動調速控制系統，模擬結果表明，滑模變結構控制的列車自動調速控制系統能實現速度響應快、無超調，系統對參數的攝動和外部干擾不敏感，實現列車自動控制系統的速度調節的穩定性，保證旅客的舒適，改善了系統性能。
  14. The results are compared with the cases in a single - layer fluid, showing that the density stratification can have a relative large effect on the drag and lift coefficients as well as the vortex shedding

    計算受迫振蕩圓柱體的升力系數、阻力系數隨時間的演化曲線和圓柱體的尾渦分佈，以及圓柱體的受迫振蕩激發兩層流體內界面的擾動，並與均勻流體的情況進行了比較分析。
  15. Increased radiation from the sun and occurrence of geomagnetic storms i. e. severe distortion of geomagnetic field of the earth may cause disturbances such as increases in density in the earth s upper atmosphere. these result in a greater drag on the movement of satellites and spacecraft, causing a slow - down or even a change in orbit

    輻射的增加及地磁暴即地球磁場急速變形的出現，會導致地球上層大氣的擾動，例如空氣密度的上升，從而使衛星和太空船在航行時受到的阻力大增，航行速度因而減慢，甚至軌道亦會改變。
  16. Increased radiation from the sun and occurrence of geomagnetic storms ( i. e. severe distortion of geomagnetic field of the earth ) may cause disturbances such as increases in density in the earth s upper atmosphere. these result in a greater drag on the movement of satellites and spacecraft, causing a slow - down or even a change in orbit

    輻射的增加及地磁暴（即地球磁場急速變形）的出現，會導致地球上層大氣的擾動，例如空氣密度的上升，從而使衛星和太空船在航行時受到的阻力大增，航行速度因而減慢，甚至軌道亦會改變。
  17. The proposed control system includes the attitude controller acting on the rigid hub, designed by using pulse - width pulse - frequency ( pwpf ) modulation integrated with command shaping technique based on csvs method, and the piezoelectric material elements as sensors / actuators bonded on the surface of the beam appendages, designed by the optimal positive position feedback ( oppf ) control technique, in which the selection of ppf gains is determined via introducing a cost function to be minimized by feedback gains which are subject to the stability criterion at the

    設計的控制器僅利用輸出信息，從而避免設計撓性模態狀態觀測器以及引入狀態觀測器誤差;在此基礎上，採用分力合成方法設計命令成形控制器來抑制撓性附件的振動，設計的優化命令成形控制信號在理論上可以對系統的各階撓性模態完全抑制。但考慮到模型不確定性和外部擾動，在內迴路又設計了最優正位置反饋（ oppf ）補償器以增加撓性結構的阻尼，使撓性結構的振動能夠很快衰減。
  18. Several types of curved subsoiler shapes are designed and founded, and the macroscopical disturbing profile of soil after subsoiling and these subsoilers ' working resistance are measured with a big laboratory soil bin, the manner of graphics expression about the macroscopical disturbing profile of soil after subsoiling is quantificationally given, and the relation between the cultivation resistance and the macroscopical disturbing profile of soil after subsoiling is analyzed

    摘要設計製作了幾種彎曲型深松部件，通過室內大型土槽耕作試驗，測定了各種深松部件耕作以後土壤的宏觀擾動輪廓和耕作阻力，對于土壤的宏觀擾動輪廓給出了定量化的圖形表達方式，並且分析了其與耕作阻力之間的關系。
  19. Solar wind flows out from the corona the sun s outer atmosphere into interplanetary space at speed of between 300 and 900 km per second. it causes fluctuation to the earth s magnetic field, which we call magnetic storm. such event will cause deflection of compass needles

    而太陽風則以每秒300至900千米的速度由日冕太陽外大氣層向外拋射，進入行星際空間，對地球磁場造成擾動而產生磁暴，導致指南針指針偏移，嚴重的話更會導致電力受阻和電話線路中斷。
  20. Besides, there is also some alternatives, such as an inductance conversion using differential transformer and space curve deformeter, and variable resistance pressure transmitter

    除此之外還有利用差動變壓器和擾曲線應變計的電感變換方式，以及變電阻式壓力變送器。
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