ship curve 中文意思是什麼

ship curve 解釋
船體曲線
  • 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...
  • curve : n 1 曲線；彎曲；彎曲物。2 曲線規 （＝French curve）；【機械工程】曲線板；【棒球】曲線球；【統計學...
  1. The time - frequency curve of stern scatterer is analyzed. furthermore, high quality images are obtained by identifying the regions which are uniform in frequency. chapter 4 exposits the method of optimal time selection for ship isar imaging in detail

    本章分析了船尾處特顯點的時頻分佈曲線，並選擇了時頻曲線中頻率近似不變的時間段得到艦船圖像，其成像質量有了較大的提高。
  2. It is determined that with accurate knowledge of the complete stress - strain curve of concrete in compression, steel in tension, and with an iterative computerized non ? linear method, it is possible to predict the entire moment - curvature, moment - flexural rigidity and axial rigidity relation ship of a cross - section of a structure member

    可以確定，只要知道混凝土受壓和鋼筋受拉的完整的應力應變關系，採用選代的非線性計算方法，就有可能預測結構截面彎矩一曲率、彎矩一彎曲剛度和軸向剛度的關系。
  3. The paper build a model of electric ship power system, include the model of motor and generator derived from simulink, the model of propeller build by the author, the model of load flow. after the process of model simulation, the dynamic curve of electrical ship were drawn out

    應用simulink已有的電機模塊，再自行建立螺旋槳的simulink模型，結合數據庫模塊和用戶自定義的s函數模塊，建立了電力推進船的船?機?漿匹配模型，並進行了模擬計算和動態特性模擬，並進行了模擬結果分析。
  4. Fitting of curve based on the ship lofting

    基於船體放樣的曲線的擬合
  5. Abstract : by both the external combination of deck coefficient and designed water - line coefficient ? and the in - ternal combination of deck transformation and cross - section area curve transformation ? a new ship line is generated on the condition that cross - section area is the same as the basic ship and designed water line satisfies the need. this method needs not look for any transformation function to finish the change of cross - section area curve. it is a profitable development to the traditional lackenby method

    文摘:本文通過甲板面面積系數和設計水線面面積系數的外層疊代、甲板面變換和橫剖面面積曲線變換的自身內層疊代，在保持橫剖面面積曲線不變的條件下，獲得滿足設計水線面系數變化要求的新船型，而不必尋找橫剖面線的變換函數來實現設計水線面的變換，本方法是對傳統的母型船變換的一個有益補充。
  6. This paper introduces the simulation method and advanced computer technology combining with ship statics principle into cargo shipment of bulk grain carrier, and develops loading simulation system of the bulk grain carrier. and introduce the principle of system and method of implement particularly. this paper describes the relating high precision calculation algorithms of the stability, trim and strength calculation used by the loading software in detail, focuses on the algorithms of numerical value integral and curve difference and imitate algorithms

    另外，本文還引入模擬的方法，採用先進的計算機技術，結合船舶靜力學原理和散裝穀物船舶穩性校核的特殊要求，開發了散裝穀物船舶的裝載模擬系統，並詳細介紹了該系統的原理和實現方法，在計算方法上，採用了高精度的浮態、穩性、和強度的計算方法。
  7. Abstract : this article is devoted to the development hull lines fairing, analyses some cases of this topic in home and abroad, poses some technical questions of hull lines fairing and also gives the solution including the spline curve precision fairing theory, ship data series, adept more data interactive way, and the integration of lines fairing and cad / cam, etc

    文摘:本文以船體線型光順的發展方向為題，論述了國內外的發展概況，針對國內情況提出了船體線型光順的一些技術問題和解決方案，包括建立樣條曲線的精密光順理論，系列船數據庫，更多地採用數據圖形交互手段，線型光順和cad / cam實現一體化。
  8. It offers the idea according to problem faced, considering the good character of the ends, the ajusted cubic b - spline curve is used to fit ship lines. it finds out the control vertexs according to a sequence of given points, and then, through particular formula, each point in the curve could be worked out. it smoothes lines with the method based on small - paramter

    針對面臨的問題，提出了自己的思路，在數學計算方法上，由於三次準均勻b樣條曲線良好的端部性質，這里用它來擬合船舶型線，首先根據所給的初步型值求出其控制頂點，然後根據相關公式進行插值便能得到曲線上的所有插值點。
  9. In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training

    本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中，編制了計算程序，成功地以現有12座典型橋梁的基礎數據為樣本，以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數，以船撞橋概率為輸出參數，經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。
  10. 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。
  11. To interpolate the given ship offset data, the ship - hull surface is represented successfully by nurbs. the boundary conditions computation and knots vector construction are detailed in nurbs curve and surface interpolation

    本文根據船體型值表的數據，用nurbs曲面來描述完整船體曲面，對插值曲面邊界條件構造及節點矢量計算進行了研究，實現了船體曲線曲面的nurbs表達。
  12. In the aspect of ship maneuvering hydrodynamics, taking bulk carriers and oil tankers for an example, the prediction was done ; in the turning circle, different ships under different rudder angles were studied and predicted ; in the zigzag curve, different ships under constant rudder angle were studied to predict another two ships

    在操縱運動水動力方面，以散貨船和油船為例探討應用bp網路完成水動力的學習和預報；在回轉圈方面，完成了不同船舶在不同舵角下的學習和預報；在z形曲線方面，對不同的船舶在同一舵角下進行學習，預報了另外兩艘船舶的z形曲線。
  13. We propose a method that automatically generates discrete bicubic g 1 continuous b - spline surfaces that interpolate the curve network of a ship hullform

    本文中我們提出一種從船殼網格中插值生成離散雙三次g 1連續的b樣條曲面方法。
  14. For the specification of the curve surface of ship, this system applies three methods, i. e. triangle, b - spline and nurbs, to express the ship curved surface

    針對船體曲面的特殊性，本文採用了三角剖分、 b樣條曲面、 nurbs等多種形式來表達船體曲面。
  15. It is verified that the prediction accuracy of ship maneuvering hydrodynamics, turning motion and zigzag curve are acceptable in practice, if the learning samples, network ' s structure and learning algorithm are reasonable

    研究結果表明，只要選擇適當的學習樣本、網路結構和學習演算法，神經網路的水動力預報精度、回轉運動預報和z形曲線的預報在實際中可以接受。
  16. The results indicate that start and end segment of interpolation curve are changed with different boundary conditions. interpolation and approximation of arbitrary data points and ship hull surface modeling based on nurbs is implemented

    研究了nurbs的曲線與曲面的正算、反算演算法及其邊界條件的確定方法，實現了任意點列的nurbs插值與逼近及船體曲面造型。
  17. The concept of the longitudinal strength of ship hulls has changed and advanced greatly as the study on the failure mechanism of the hull is getting deep. by taking account the failure modes of yielding, buckling and their combination, as well as the non - linear interactions between structural members, the ultimate longitudinal bending moment is defined by the moment corresponding to the point with zero slope on the moment - curvature curve of the ship hull

    但隨著對船舶破壞機理的認識和研究發現，在研究船體的總縱極限強度時，必須考慮構件的屈曲、屈服等各種可能的破壞模式，要考慮受壓構件屈曲后及崩潰后的非線性性能的影響，要考慮組成船體的各個構件發生破壞的漸進性質和相互作用等。
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