軌道加速度 的英文怎麼說

中文拼音 [guǐdàojiāsùdù]
軌道加速度 英文
orbital acceleration
  • 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
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 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
  • 軌道 : 1 （供火車、電車等行駛的由條形鋼材鋪成的路線） track; pathway; rail; runway; circle; railway 2 （...
  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. Through theoretical calculation it gets the sizes required to make this device effective, proves this device can trig the cable car at any place of the railway when the tow steel wire ruptures suddenly provided that the desirable sizes are meted. it also calculates the trigging displacement, acceleration and time

    通過理論計算，得出了該套安全保護裝置合理的尺寸要求，證明了在牽引鋼絲繩發生突然斷裂時，該套安全保護裝置確實能將纜車系統制動在運行軌道的任何位置，並計算出了制動位移，制動加速度和時間。
  3. Based on the analysis of the lateral acceleration data of vehicles measured in shanghai metro lin, this paper suggests that the lateral oscillation force of the vehicles shall choose 10 % of the vertical load on a single wheel

    摘要根據鐵路車輛及上海軌道交通3號線上實測車輛橫向加速度值，建議橫向搖擺力取軸重的10 % ，按目前承軌合構造，車輛偶然脫軌后可能橫向偏移左右各1 . 75m 。
  4. Result shows : the vibration of vehicle is mainly relevant to velocity and uneven path. the higher the velocity is, the more uneven the path is, the more violent the vibration of vehicle is ; comparing dynamical response of middle bridge stride on vehicle passing bridge and on equivalent moving loads, the displacement is same but the velocity and the acceleration are different ; the result of velocity and acceleration of vehicle is big over the ground path than over the same path of bridge

    結果表明：車輛的振動主要和車速及軌道不平順有關，車速越高，軌道越不平順，車輛振動的就越劇烈；車過橋時橋梁跨中動力響應與等效移動荷載作用下橋梁跨中動力響應比較，橋梁跨中的位移基本相近，速度和加速度則不同，等效移動荷載作用情況下的數值比較大；車輛過地面軌道不平順時的速度、加速度比車輛過橋上同樣軌道不平順時的數值大。
  5. By inputting impulsive excitation, the dynamic simulation of vertical wheel / rail force, wheel / rail contact stress and accelerations of axle and bogie frame for resilient wheelset system is carried out and the results are analyzed and compared with the system of rigid wheelset. in additions, the stiffness of rubber is optimized

    其次通過輸入脈沖型激擾，對彈性輪對車輛軌道垂向耦合系統進行了輪軌力、輪軌接觸壓力和車軸及構架加速度的動力學模擬，並與剛性輪對車輛的計算結果進行了比較和分析，優化了橡膠的剛度。
  6. The acceleration may in turn be obtained from the velocity of the satellite and the radius of the orbit.

    這個加速度又可根據衛星的速度和它的軌道半徑來求得。
  7. 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
  8. 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 。
  9. Then, we use a simulation method to create a large number of radar measurement values, produce a quantity of random numbers using computer software and add them to the radar measurement values, we use kallman filtering method to calculate the location, velocity and trajectory coefficient of the target at the moment of the final tracking point, and use the numerical solving method of differential equation to calculate the trajectory, the location of the hostile artillery or the impact point of its own projectiles, finally, we calculate statistically the random error of the tracking system and analyze the location accuracy

    然後採用模擬模擬方法獲得大量的雷達測量值，由計算機軟體產生大量的隨機數，加入雷達測量值中，用卡爾曼濾波法計算出最後跟蹤點時刻的目標位置、速度和彈道系數，再用微分方程數值解法計算出整個彈道軌跡、計算出敵方炮位的位置或己方炮彈的落點，最後統計出跟蹤系統的隨機誤差，分析定位精度。
  10. Additional, by comparing with conventional bogie, it is discovered smaller lateral body acceleration, but sticks to one rail trends and high vvorn values because of guided by vvheel flange. it should be referred that these results are only useful to special simulation model of lrv with irws in this paper

    此外，通過與常規轉向架進行比較發現，獨立旋轉車輪車輛車體橫向加速度較小，但有貼靠軌道一邊行駛的傾向，且由於靠輪緣導向，使得獨立旋轉車輪轉向架的整車磨耗比傳統輪對轉向架的略大一些。
  11. While the theory of wheel / rail system dynamics is applied in the points ( switch ) dynamics, the system is more complicated and computation time is longer, therefore the parallel computing technology is an effective method to increase computation speed

    特別是隨著輪軌系統動力學在道岔動力學中的應用，處理的問題更加復雜，計算時間長的問題，已成為實際應用中的一大障礙。提高其計算速度的一個有效方法就是採用并行計算技術。
  12. 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。
  13. 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。
  14. These examples of cases were focused on high way charge securitization and international trade credit securitization. for speeding up chinese cross - border securitization development, we should take many steps to perfect our financial system and make chinese cross - border securitization develop in a healthy and ordering way

    為了加速我國跨國資產證券化的發展，我們必須注意保證資產池的質量，合理確定特殊目的機構（ spv ）的組建和選址，防範匯率風險，建立健全相應的法律法規制度和監管體系，使我國跨國資產證券化走上合理合法、健康有序的軌道。
  15. Gravitic launchers are massive railguns where mass drivers trigger the initial acceleration before the ships gravitic field is pulsed to squeeze the missiles toward the enemy at enormous speed

    重力彈射器是大型的軌道炮，使用重力引擎獲得初始加速度，而後用船體的重力場脈沖以極高速度推動導彈飛向敵人。
  16. 2. the discrete sampling value of field track vibration acceleration wave is transformed by fft and analyzed by deterministic analysis. one degree of freedom simplified model is used for train and the kinematic equilibrium differential equation is deduced to simulate the vertical wheel system

    最後，通過線性回歸得到了該地鐵軌道交通引起的環境振動的振級衰減公式; 2 .通過快速fourier變換，對實測的軌道振動加速度進行了數定分析。
  17. 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。
  18. The discussion about the mobilization of state - owned shares, the joining in of privately owned capital, the increasing communication in the market regulatory level, the higher expect for the extent of market ' s opening, and the conversion of security institutes " investment concepts, are all fully indicate that our market is making great efforts to perfect itself and to fill the gap between the capital market ' s standard in developed country and that of china

    進入了新的千年。我們的證券市場也步入了一個更為迅猛的發展軌道。國有股權流通方式的討論、民營資本的加入、市場監管層面的國際合作的加強、市場開放程度預期的加強、證券機構投資理念的轉變等等，已經充分說明我們這個市場在加速的完善自己，向發達國家的資本市場標準靠攏。
  19. 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。
  20. Actual measurement indicates that the displacement and acceleration of rail vibration both have random property, the displacement spectrum mostly has obvious low frequency contets which occupy dominant peak value range

    實測表明，軌道振動的位移和加速度都具有隨機特性，位移頻譜組成以低階頻率為主，且有明顯占優勢的峰值區域。
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