離軌速度 的英文怎麼說

中文拼音 [líguǐsùdù]
離軌速度 英文
take-off velocity
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 軌 : Ⅰ名詞1. （路軌;軌道） rail; track 2. （比喻辦法、規矩、秩序等） rut; path; course Ⅱ動詞[書面語] （遵循; 依循） follow
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. Orbital velocities in spiral galaxies, instead of declining with increasing distance from the galactic center, flatten out to a constant value, as predicted by mond

    螺旋星系中的軌道速度並不會隨著離開星系中心的距離增加而不停降低，它會平緩下來成為一固定值。
  2. The higher speed of tilting trains mainly depend on increasing the curving negotiate speed, but which will produce larger centrifugal acceleration, reduce the passenger " s ride quality, enhance the lateral force and make the wear serious between wheel and rail

    擺式列車主要是依靠提高曲線通過速度達到提速的目的。車輛曲線通過速度提高后，將產生較大的離心加速度。其結果不僅降低旅客的乘坐舒適度，同時將加大輪軌橫向力和加劇輪軌間的磨耗。
  3. The body travels in an ellipse, the fixed point being at on focus. the speed is greatest when body is near the focus, less when it is farther away

    物體沿著固定點在一個焦點上的橢圓軌道運動。當運動物體靠近這一焦點時其速度最大，而當它遠離時則速度變小。
  4. Maglev, regarded as a " green " means of transportation of 21st century, has many remarkable advantages such as comfortable riding, high speed, good environmental adaptability, flexibility and nonpolluting, etc. compared with traditional railway train, maglev is running above the track

    磁浮列車以乘坐舒適、速度快、對地形適應性強、選線較靈活、無污染等特點，被稱為21世紀的綠色交通工具。和傳統輪軌列車相比，磁浮列車是脫離軌道運行的。
  5. The assemblage angle and maximum step are studied, the method to calculate the maximum step of random structure paramers and random walking orientations is proposed and some formulations are deduced. the singularity and singularity workspace are analysed. based in zmp theory, the track programming is finished depending on leg position workspace

    根據zmp理論，在腿位置運動空間內作了軌跡規劃，劃分了步行周期，求出了腳圓心的軌跡，對速度和加速度作了規劃，應用離線軌跡規劃方法，給出了離線求取桿長伸長值及速度值的演算法框圖。
  6. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  7. 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 。
  8. This paper emphatically researched the problem how to calculate the intersection point between workpiece that rotated with variational angle velocity and milling cutter that moved with complicated track and rotated with high speed. furthermore it adopted the discrete curve surface method for every milling cutter, and treated image frame as the control parameter of position of milling cutter during the intersection calculation process, so the algorithm of intersection between workpiece and milling cutter was obtained. the paper also discussed further three - dimension graphic problem of manufacture process

    文中對做變角速度運動的工件和運動軌跡復雜的高速自轉中的銑刀求交問題進行了重點研究，採用將銑刀上的每個刀尖劃出的曲面離散化的方法，以圖像顯示的幀數作為求交計算過程的銑刀位置的控制參量，得出了銑刀與工件的求交演算法。
  9. Wave off into shallow waters, seabed by the friction effect change steep wave front, trough ice, water points trajectory showed reciprocating flow, but also to the shore into the flow speed usually return rate greater than offshore, the net result of sediment at the bottom to the shore handling, and was the shock waves on the shore with the water current - riviera online accumulation

    外海波浪傳入近岸淺水區，受到海底的摩擦作用，波鋒變陡、波谷變緩，水質點運動軌跡呈現往復流動，而且向岸進流速度通常大於離岸迴流速度，導致底部泥沙凈向岸搬運，並被激岸浪的上沖水流帶至海濱線上堆積。
  10. As for the speed of the railway, the design speed of maglev trains is higher than that of wheel - on - track trains. nevertheless, a reasonable distance between stations will be required in order to optimize the efficiency of the maglev system in reducing the journey time

    就鐵路的速度而言，磁懸浮列車的設計速度比輪軌列車為高，但需要站與站之間有相當的距離，才能充份發揮磁懸浮技術的高速優勢，縮短行車時間。
  11. In this dissertation, we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system, further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } ", hence we can give mixing conditions on them

    在這篇碩士學位論文中，我們主要藉助lyapunov第二方法的思想，討論了兩類脈沖微分系統：脈沖混合微分系統和具有依賴于狀態脈沖的微分系統的穩定性問題。不同於以往的研究，本文所找的lyapunov函數沿系統軌線的一階導數不再局限於常負或定負，甚至不用其導數來限制其增長速度；不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件。
  12. According to different mechanisms, there exist several types of resonance, including the bridge resonance induced by the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced by the loading rates of moving load series of vehicles, the bridge resonance induced by the periodical loading of train vehicles excited by rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced by periodical actions of the regular arrangement of bridge spans and their deflections

    根據發生機理的不同，車橋系統可能發生幾種不同形式的共振，包括由車輛重量、離心力、橫向平均風荷載等形成移動荷載列的周期性動力作用引起的橋梁共振，由移動荷載列加載速率引起的橋梁共振，由軌道不平順、車輪扁疤、輪對蛇行等周期性加載引起的橋梁共振；由橋跨的規則性排列及其撓度的影響，對移動車輛形成周期性動力作用使車輛出現的共振。
  13. Case 1 : when there is no relative measurement, each satellite uses its own on - board attitude sensors to determine its attitude, and exchange the information through the communication link between formation satellites, and then the relative attitude is determined through simple mathematical operation. case 2 : based on the range measurements of gps like sensors, using two - point measurement of the relative orbit state to establish relative orbit and attitude kinematics and measuring equations. and state estimation is achieved through the extended kalman filter technology and unscented kalman filter technology, respectively

    方案一，在星間無相對測量時，由衛星自身攜帶的姿態敏感器實現單星高精度姿態確定，利用星間通信鏈路進行信息交互，通過簡單的數學計算獲得星間相對姿態;方案二，利用類gps相對測量，建立了編隊衛星相對軌道運動和相對姿態運動模型及相對距離測量方程，推導了兩點相對軌道運動模型，設計了擴展卡爾曼濾波器及uscented卡爾曼濾波器，對相對位置、速度和姿態進行估計。
  14. With the input of a vibration acceleration history of subway train, a full dynamic analysis of soil - pile - structure is carried out. the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed. some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source, vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source, the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction, the vibration velocities and accelerations at the end points of each story of a building are the nominal identical, which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings

    本文以北京地鐵八王墳車輛段地上超大結構（車輛段大平臺及其上的小區樓房）及其地基基礎為研究對象，在研究和分析有關資料的基礎上，用快速拉格朗日有限差分法軟體flac建立了二維數值分析模型，並以列車振動加速度時程作為模型輸入，進行了地基?樁基礎?地上結構的整體動力學分析，分析了地鐵列車運行產生的振動在地面的傳播規律及其對地上結構的影響，得到了如下結論： （ 1 ）隨著與地鐵線路距離的增大，地面的振動強度有減小的趨勢； （ 2 ）地面豎直方向的振動強度較之水平方向的略大； （ 3 ）隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動強度由底層和頂層的最大、中間層的最小逐漸過渡到沿樓層增高而減小； （ 4 ）在豎直方向上，每幢樓各層端點的振動速度、加速度完全相同，表明樓房各層在豎直方向上的運動狀態一致； （ 5 ）各幢樓房豎直方向的振動強度比水平方向的大； （ 6 ）增加軌道彈性是減輕地面和地上建築振動的有效途徑。
  15. Meanwhile, in order to satisfy various requirements of research, teaching and verification, the system provide all kinds of modes of 3d display, for example, the range - velocity display mode, the range - direction display mode, the velocity - direction display mode, single / multiple targets ’ track display mode, single / multiple graph display mode, clutter - hidden display mode, single / multiple group data display mode and so on

    同時，為滿足科研、教學、演示驗證等多場合情況下的各種需求，本系統可按使用者的需求實現所有可能的組合顯示:例如，速度、距離、方位的兩兩組合、單/多目標的運動軌跡組合、單/多圖顯示、雜波消隱顯示、單組數據顯示、組數據顯示等可選功能，極大地方便使用者。
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