船模速度 的英文怎麼說
中文拼音 [chuánmósùdù]
船模速度
英文
model speed- 船 : 名詞1. (水上的運輸工具, 船舶的通稱) boat; ship; vessels 2. (姓氏) a surname
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 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
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Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity
該模型的主要特點是: ( 1 )它採用了三尺度復合表面模型的思想來計算海面的電磁散射,考慮了中等尺度波對紋波的進一步調製作用,彌補了傳統雙尺度模型的不足; ( 1 )它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用,實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬; ( 3 )它把海面長波的軌道速度作為基本的動態成分,並依此來考慮海面運動對sar回波信號的影響。The simulation results show that coning error and sculling error can be compensated satisfactorily in the algorithms. 3
模擬結果表明:捷聯慣導演算法能實現對姿態圓錐誤差和速度劃船誤差的補償。In the test, the influence on the ship resistance and performance ability of changing the shaft angle of the skeg was discussed
為進一步研究和確定其快速性,製作了船模,完成了阻力試驗和自航試驗。試驗探討了不同尾鰭角度對船舶快速性能的影響。Another based mathematics model about the anchor cable is used for ship - anchor system. the numerical calculation have been worked by programmed in the matlab language. at the same time the influence that the dragging speed of antisubmarine helicopter and the height over the surface of ocean acts on the shape and the tension of underwater cable, and that the current velocity and the diameter of anchor cable acts on the shape and the tension of anchor cable, has been calculated
把建立的水下拖索數學模型和錨索數學模型分別應用於航空吊放聲納探頭?纜繩動力學系統和船?錨系統,採用matlab語言編程進行了數值計算,同時分別計算和分析了反潛直升機拖速、距海面高度對拖索形狀和張力的影響以及海流速度、錨索直徑對錨索形狀和張力的影響。The theoretical calculation and the model experimental result both have confirmed that the built - up stabilizing appendage is able to reduce pitching n heaving motions and especially bow acceleration considerably
理論計算和模型試驗結果均證明了組合減搖附體能夠減小船的縱搖運動、升沉運動,尤其是大幅度降低首部加速度。Therefore, the safety of bulk carrier is widely concerned ; the theory of insubmersibility is followed by the introductions of domestic and international regulations, solutions, rules and requirements on the floodability ; introduced are the conditions of hold in flooded condition, and provided are the calculation methodology of the stability and buoyancy when flooding. the concept of cargo permeability is concretely defined, and the calculation methods of the amount of flooding waters are executed ; the application of the influence numbers simplify the calculation of the still water bending moment and shearing force in flooded conditions. a new method to calculate the maximum still water bending moment and shearing force is developed by means of the influence numbers ; the simulation system provides a means of evaluation and forecast on ship ' s danger extent after ship is damaged
在抗沉性公式的推導過程中採用一些假設,並分析了這些假設對結果的影響;然後介紹了船舶強度的概念和計算方法,鑒于現有的剪力彎矩計算方法工作量大、效率不高的缺點,引用影響數計算船舶進水后的剪力和彎矩;最後根據船舶抗沉性理論對散貨船破艙進水進行模擬,在模擬中根據船舶破艙的實際危險情況,採用直觀的圖形輸入的辦法,判斷船舶的危險程度並計算船舶到達危險狀態的時間以助於船長做出正確快速的決策。Two types of alignment algorithms on moving base were put forward in this paper, one with angular velocity matching, and another with acceleration matching. the error models and measurement models in consideration of ship flexure and lever - effect were deduced respectively. the alignment methods were verified by simulation
提出了兩種動基座傳遞對準的方法,一種是採用角速率匹配,一種是採用加速度匹配,並分別推導了在考慮船體變形和桿臂效應時傳遞對推的誤差方程和量測方程,通過模擬驗證了這兩種傳遞對準方法的正確性。In the full of research, the thesis constructed the dynamic equations of the simplified model, then programmed and computed the feedback gains using lqr method. moreover, the thesis plotted pictures of displacement, velocity, acceleration, bend and shearing force of ship ' s head and middle part in the condition of using cable and not using cable
在研究工作中,首先對船舶的簡化模型建立了動力學方程,然後採用線性二次型最優控制方法,編寫程序並計算出船體垂向振動固有頻率和最優反饋矩陣,得到控制前後船艏以及船舯部的位移、速度、加速度、彎矩和剪力歷程圖。At the same time, the paper discussed the establishment of mathematics simulation model for digital governor dgs - 8800 according to the traditional pid control model. it also comes up with the idea of optimizing the speed - adjusting system for the marine main engine by making use of fuzzy control theory
同時,在pid控制模型基礎上,建立了電子調速器的模擬數學模型,提出了應用模糊控制理論來優化船舶主機的速度調節系統的思想。The concept of the optimize design is proposed and its mathematic foundation is analyzed in this paper. after comparing several optical calculation methods, the one that is suitable for the lubricating system is chosen and analyzed in detail about its concept, characteristic and some focal points. meanwhile, combining with the analysis of the relationship among the parts and structure of marine low - speed diesel lubricating system, the internal disciplinary, other pipeline system and main engine, aiming at reducing the initial investment and the running cost in a certain years, the mathematic model of the system is built and the object function and subjected conditions are set up
本課題闡述了最優化設計的概念,分析了最優化設計問題的數學基礎,比較了約束多維問題的幾種優化方法,選取了適合於潤滑油系統的優化設計方式,並對該方式的概念、特點及其應注意的問題進行了較詳細的分析;同時,結合海船低速柴油機潤滑油系統的組成部件及其結構以及潤滑油系統內部規律與其它管路系統、船舶主機的關系的分析,從經濟性的角度,以設備初投資及其在一定年限內的耗能費最低為目標,建立了本系統優化設計的數學模型,確立了目標函數和約束條件。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。The influence of swinging ship to los is analyzed in detail. the tracking precision of the shipborne tv tracker will be improved greatly when the feedforward signal otship swaying is measured by rate gyro
本文詳細分析了艦船搖擺對視軸穩定的影響,通過理論推導和模擬分析論證了採用速率陀螺測量並前饋艦船搖速度信號將極大的提高艦載電視跟蹤儀的跟蹤精度。Aimed at overcoming the shortage of basic fuzzy controller, a kind of two stage fuzzy controller with scaling factors self - regulating and fuzzy pi controller is presented. when it is used in course control system, system " s anti - disturbance and response speed are satisfied
針對基本模糊控制器的不足,提出一種帶模糊pi控制的參數自調整的雙級模糊控制器,應用於船舶航向控制系統時,系統的抗擾性和響應速度方面均獲得滿意效果。The induction of ais technology still ca n ' t integrated with the devices of old system satisfactorily, the data of ais is only shown on the electronic chart background in ecdis, but does n ' t fulfill the fusion with the data of radar. more, some system functions related with display and interface still need be perfected, such as quickly moving, auto select chart, static information associate with target display, etc. the integrated information processing and display system researched in this thesis has been successfully applied in some vts projects and related projects, such as cheng - dao oil field survey system, yan - tai mount vts rebuild project etc. to the disadvantage exposed to us in national and foreign vts system, and those putted up in application projects, the thesis did a farther study and consummation, and acquired some research fruits, as follows : 1. fulfilled the eagle eye function in electronic chart display system
針對目前國內外vts系統中暴露出的薄弱點,以及應用實踐中表現出的不足本文對綜合信息處理與顯示系統做了進一步的研究和完善,取得了以下的研究成果: 1 、電子海圖顯示系統中鷹眼圖的功能設置與實現; 2 、設計一種簡易的選圖演算法,通過該演算法實現可在海圖放大、縮小時的自動選圖; 3 、電子海圖上自動錄取區的實現(二次自動錄取) ; 4 、實現對雷達和ais目標數據及其誤差的軟體模擬; 5 、船舶自動識別系統中動態信息與雷達動態信息的數據融合處理; 6 、利用數據融合技術解決雷達目標跟蹤方面的問題; 7 、海圖空間信息中顯示區域裁減演算法的設計,該模塊的實現大幅度提高了海圖的顯示速度。To obtain better value of beforehand emendation for maneuvering terminals, the movement characteristics of terminal must be understood well. firstly, the motion time course for speed of 18kn under the condition of second level ocean wave was given through the numerical simulation of naval ships
為了能夠較好的給出運動終端的超前校正值,必須了解終端的運動特性,本文對海上艦船運動進行了數值模擬,給出了二級海浪下18kn速度航行的運動時間歷程。The sculling error in the velocity calculation is described and the sculling optimal compensation algorithms are derived in the sculling base motion environment. for testing the sculling correction algorithms " performance, several simulations are practiced and the simulation results show that the sculling compensation term in the velocity integration algorithms can not be neglected for the high accuracy sins in highly dynamic environments. 3
分析了速度更新計算中劃船誤差的產生機理,詳細推導了劃船補償演算法並在劃船運動條件下推導了劃船補償優化演算法,最後對各階演算法進行了模擬分析,模擬結果表明:對處在高動態環境下的高精度導航系統,劃船補償不可忽略; 3The control algorithms of both traditional and intelligent main - engine speed regulator are emphatically discussed in the thesis. the author established an simplified integrated mathematical model for marine main diesel engine, screw propeller and axis series with the mother type of large low speed diesel man b & w. the digital simulations for pi speed regulator are completed
本文討論了主機速度控制的兩種實現方法;論文以實船應用的manb & w大型低速柴油機為母型,建立了柴油主機、螺旋槳、軸系一體化的簡化數學模型,並對常規柴油主機pi調速系統進行了數字模擬。We can n ' t get result on how to change course and speed to make collision avoidance, this can help little on collision avoidance decision. the article aims at the default on radar simulator and implements the standard result on radar simulator by making use of mcu. the main production is below : first, we calculate how to chang course and speed on the destine point by mcu. we get the new course and new speed on the destine point, we get the point to resume original course and speed, we get the distance and azimuth to resume original course and speed on given course and speed, the six essential : dcpa, tcpa, distance, azimuth, real speed and real course
本論文針對當前雷達模擬器標繪訓練中的不足,實現了利用單片機進行雷達模擬器標繪標準值的計算,主要成果有以下方面:首先,利用單片機計算得到了在預定點改變航向和改變航速的計算,求得預定點改向的新航向c _ n和預定點變速的新速度v _ n ,恢復原航向和原航速的時機點的計算;在給定避碰的新航向、航速的條件下,計算出恢復原航向航速的時機點h的距離r _ h和方位_ h ;目標船的六要素,即dcpa 、 tcpa 、距離r ( t ) 、方位( t ) 、真航速v _ t和真航向c _ t 。After analyzing the feed ford neural networks structure, algorithm and astringency, which are used very popular in control field, the thesis proposes that the ship steering dynamical characteristics is learnt with rbf neural network. the simulation results show that the rbf neural network has faster learning speed and higher prediction precision than bp neural network
本文在對控制中應用最多的前饋型神經網路的結構、演算法及收斂性方面分析比較基礎上,提出應用rbf網路對船舶操縱運動動態特性進行辯識,模擬表明辨識精度和速度方面都能夠獲得滿意的結果。Based on the solving technique of explicit non - linear finite element method and the mechanism in ship - anti - collision equipment collision, this paper develops numerical simulation to collision process of a ship and an anti - collision equipment, then studies the influence of uncertain factors in the collision problems and gives some suggestions to improve the anti - collision equipment
摘要在研究船橋墩防護裝置碰撞機理的基礎上,結合實例探討了碰撞問題中的諸多因家(如碰撞位置、防護裝置的結構尺寸以及碰撞速度等的變化)對防護裝置抗撞性能的影響,並據此對橋墩防護裝置提出了改進意見:通過模擬計算,改進防護裝置的板厚以及板上筋的結構尺寸;在防護裝置的內圍壁與橋墩之間放置橡膠吸能元件或在防護裝置的外圍壁安裝橡膠護舷件,以加強防護裝置的吸能作用。分享友人