ship motion 中文意思是什麼

ship motion 解釋
船舶運動
  • ship : n 1 船;大船;海船;艦〈作陰性看,代名詞用 she her〉。2 三桅船;全裝帆船。3 船形物。4 〈俚語〉賽...
  • motion : n 1 運動 動 移動(opp rest)。2 (天體的)運行;(車、船等的)動搖;(機器的)開動 運轉;【機械工...
  1. This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas, obtains stable time course by resolving in time domain, and then pressure vectors will be available. the pressure includes static pressure, incident waves pressure, diffraction pressure, radiation pressure, and wave impact pressure, and changed with instantaneous draft of each intersection

    該方法應用擴展的切片理論建立迎浪規則波中船舶非線性運動方程,通過時域步進求解獲得船舶剛體運動的穩定時歷,進而給出與船體各橫剖面瞬時吃水相對應的靜水壓力變化、入射波壓力、繞射壓力、輻射壓力和波浪沖擊壓力諸分量。
  2. According to the relation between sea sickness and ship motion, the mechanism and hydraulic system of a platform of ship motion simulating for testing of sea sickness is designed by the working set of researching subject

    根據暈船病與船舶運動的關系,課題組已經研製了針對暈船病測試研究的船舶運動模擬平臺機械結構和液壓系統。
  3. On the basis of improving the dramatic characteristic of fluid drive system of the platform, the electro - hydraulic servo control system of simulating platform is designed, and its characteristic is analyzed, and the corresponding control algorithm is studied in this paper. what all do is in order to make the platform of ship motion simulating simulate the motion of ship, and realize the high precision motion pose of the platform, and achieve the motion performance index required by the testing of sea sickness

    在提高平臺液壓驅動系統動態性能的基礎上,本文進行了模擬平臺電液伺服控制系統的設計、特性分析和控制策略研究,使該模擬平臺能模擬船舶運動,實現高精度的平臺運動姿態,達到暈船病測試所需的運動環境性能指標。
  4. The method of applying frequency analysis theory is proposed to resolve the problem of ship motion. the mathematic models of ship - based missile in launch period are established. these models consist of relative motion in launch - fixed coordinate and absolute motion in earth - fixed coordinate

    採用了動靜法的描述形式建立了艦載導彈在發射段的數學模型,分別給出了導彈相對發射坐標系的相對運動模型和導彈在地面坐標系下的絕對運動模型。
  5. The dynamic lag error of servo system, the error caused by disturbing moment and the influence of ship motion to tracking performance are also described

    同時,給出伺服系統動態滯后誤差、擾動力矩產生的跟蹤誤差,以及由於艦船運動對跟蹤性能的影響。
  6. This paper discussed effects of ship swaying motion in waves on ship - based cannon firing in terms of ship motion equation and theory of artillery shoot, including influence on shoot distance and direction

    摘要從船舶在海浪中運動模型出發,結合炮兵射擊學原理,研究船舶搖擺導致火炮基座運動以及桿臂效應導致子慣導初始對準誤差等因素對火炮射擊的影響,主要針對船載炮射擊在距離與方向的影響進行分析。
  7. The primary work of this thesis is as follow : ship motion is an important factor which effected missile initial disturbance

    作為影響艦載導彈發射初始擾動的重要因素,對艦艇運動規律的研究非常重要。
  8. Prediction of big ship motion with wave survey

    具有艏前波觀測量的大型艦船姿態運動預報
  9. As the overland test base of ship motion control system, semi - physical simulation system for ship motion can quicken the exploitation of product, reduce cost and save manpower and material resources

    船舶運動半物理模擬系統作為船舶運動控制系統的陸上試驗基地能夠加快產品開發速度、降低成本和節省人力物力,它的建成具有重要的科研和實用價值。
  10. In error of 0. 2 degree, the model can predict 8 - 17 seconds for the ship motion

    2度的誤差量級上能預報8一門秒,說明預報模型是實用的。
  11. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. in this paper, the opengl virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the mmg mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. in the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the mmg module mathematical model and serial experimental result

    在系統開發過程中,首先採用mmg分離式數學模型及相關的系列化試驗結果,建立單槳單舵海洋運輸船舶在靜水中的船舶操縱運動方程,並編制計算程序,經與試驗結果比較,證實了計算結果的正確性;為了解mmg數學模型中模型參數變化對操縱性指數的影響程度,作者在上述已有程序基礎上,對有關模型參數進行偏移修正,探討了相應參數變化后的操縱性指數,對船舶操縱性指數對模型參數的靈敏度進行了詳細的分析與探討,所得結論與工程實際相吻合,具有實際應用價值,並為進一步提高船舶操縱性預報的精度打下了基礎;然後,在已有的船舶靜水操縱運動模型基礎上,考慮雙槳雙舵的影響,建立了內河雙槳雙舵船舶的操縱運動模型;最後,綜合考慮風浪流作用力的影響,進行了船舶的操縱運動模擬計算。
  12. Hirayama t, et al. directional ocean wave measurement utilizing running ship motion and radar images [ j ]. 1997, omae - volume, safety and reliability asme 1997

    由航行中的船體運動實時推算海浪譜- -方向波譜的推算[ j ] .關西造船協會志, 1987 ,第204號.李俊興譯
  13. The method combining digital filter and ship - dynamic compensation is used to realize the precise motion - target tracking on the condition of ship - motion which causes the target relative motion and the results coming from real system test prove the effectiveness

    針對甲板運動所造成的目標的相對運動和牽連運動,採用數字濾波與動態補償相結合的方案,實現了艦船搖擺情況下跟蹤雷達對運動目標的精確跟蹤,並經實踐驗證后裝備于某型跟蹤雷達。
  14. Starting from studying various environmental loads during the ship undocking process, an environmental loads calculation model and the environmental loads testing methods are established in this dissertation utilizing the orthogonal design theory. this dissertation also analyzes the impacts of the environmental loads at various ship undocking conditions. utilizing the current optimization technique and fuzzy evaluation method, this dissertation creatively studies the tug configuration mechanism and the ship motion simulation forecasting during the ship undocking process

    本文從探索船舶出塢過程中的各種環境條件出發,利用正交設計理論制定了一套船舶出塢過程的環境載荷計算模型和環境載荷試驗測試方法,分析了在不同的出塢環境條件中,作用於船舶的環境載荷對船舶出塢的影響程度,利用目前的優化技術和模糊評價方法,率先研究和探討了船舶出塢過程中,拖輪配置機理、拖輪配置數量和方法,以及船舶出塢過程的運動模擬預報,還討論了擋水板對船舶出塢影響這一特殊問題。
  15. How to overcome the diverse solution is a critical factor in the nonlinear ship motion solution in oblique seas

    如何克服這一困難,是斜浪中船舶非線性運動計算的一個關鍵性問題。
  16. Solution of nonlinear ship motion equations in oblique regular seas. in this thesis, a new method is presented about calculating nonlinear ship motion responses in oblique seas based on minimized theory

    哈爾濱工程大學博士學位論文關于斜浪中非線性船舶運動方程的求解:本文提出了按極小化原理確定斜浪規則波中船舶非線性運動響應的新方法。
  17. In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll

    研究表明:在某些頻率范圍內相關水動力系數基本不隨吃水變化,只有超過某一頻率后水動力系數的值才會出現差異;在橫搖方向,水動力系數並沒有隨著吃水的變化發生規則變化,而是出現了波動現象;近船首剖面的水動力系數計算表明,水動力系數的波動非常大,並遠遠偏離了平均位置的水動力系數值,值的變化速率也不盡相同,總的看來,上振幅曲線曲率較大,變化較快,下振幅曲線曲率較小,變化較慢;外飄力和波面運動的速度的平方項有關,導致其振動頻率和相應運動方向的頻率不同;外飄力使升沉向下運動的幅值減小;船速對三個計算量的峰值影響甚微,但對振動頻率有明顯影響;波幅對船舶運動的影響是明顯的,船舶運動的幅值基本上和波幅成線性關系。
  18. Applying the method studied in this thesis, theoretical calculation of certain container ship in regular wave has been done on ship motion and hydrodynamic pressure. it also has the results compared with those obtained under multipole conditions in the model tests. as a consequence, we abstract some characteristics of the distribution of instantaneous hydrodynamic pressure on ship wet surface, and the distribution changes with forward speed and wave parameters

    利用本文方法對某集裝箱船進行了規則波中的船舶運動和水動壓力的理論計算,並與船模水池試驗所提供的多狀態的壓力分佈數據相比較,得出船體表面瞬時壓力的分佈及其隨航速和波浪參數變化的某些規律。
  19. Before h wave filter is designed, the control system model must be known, so the mathematics model of the ship motion and the wave disturbance are introduced. 3

    在應用h _濾波技術設計海浪濾波器時,必須首先知道被控對象的數學模型,因此在設計h _海浪濾波器之前,我們簡單的介紹了設計時需要用到的船舶運動數學模型和海浪干擾模型。
  20. In the ship motion control, the heading angle of ship is affected badly by the wave disturbance. if the wave filter is applied, the high frequency effect of the wave disturbance can be reduced greatly and the control performance can be improved

    在船舶運動控制中,海浪干擾對船舶的航向輸出具有很大的影響,而運用海浪濾波器可以有效的消除海浪干擾,提高船舶的控製品質。
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