軌道拉力 的英文怎麼說

中文拼音 [guǐdàolālì]
軌道拉力 英文
rail pull
  • 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） ...
  • 拉 : 拉構詞成分。
  • 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...
  • 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 （...
  • 拉力 : pulling; pulling force; thrust; traction; tension拉力表 draw bar [pull] dynamometer; 拉力測定儀 [...
  1. With two examples of the prestressed celom tension in the continuous girder design, which is utilized in the projects of mingzhu elevated railway and xinmin elevated railway, the author analyses the characters of the design and the application of this technology

    摘要就軌道交通明珠線、莘閔線等工程的連續梁設計中預應力束體內張拉的實例，分析其設計特點和應用。
  2. In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models

    本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。
  3. According to the new rules for a planet adopted at an international astronomical union meeting in prague, pluto doesn ' t make the grade for a planet : " a celestial body that is in orbit around the sun, has sufficient mass for its self - gravity to overcome rigid body forces so that it assumes a nearly round shape, and has cleared the neighborhood around its orbit. " pluto is automatically disqualified because its oblong orbit overlaps with neptune ' s

    根據在布拉格舉行的國際天文聯合會會議通過的行星新定義，冥王星達不到行星的級別，即：在繞太陽的軌道上運轉的天體，體積足夠大使其自身的重力可以克服其剛體力呈近似圓球狀，且能夠清除其軌道附近的其他天體。
  4. This paper mainly describes the constructions of the formwork which is used in the monorail transit system in chongqing, and indicates that during the track girders ' fabrication, it is very important to pay attention to steel fabrication, orientation of conduct for tendon passing, the mixing, molding and maintaining of the concrete and the stretching of the prestressed tendon

    介紹了重慶市單軌交通系統中的預應力混凝土軌道梁模板的構造，並闡述了在軌道梁製作過程中應重點做好鋼筋製作、預應力管道定位、混凝土拌制、成型、養護及預應力筋張拉等工序的工作。
  5. The existing problem of sliding plug door system for urban mass transit vehicle is difficult to close because of the push of passengers

    摘要針對現行城市軌道車輛上使用塞拉門系統「關門難」的現象，分析了乘客擁擠情況下門系統的受力狀況。
  6. 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。
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