數學船型 的英文怎麼說
中文拼音 [shǔxuéchuánxíng]
數學船型
英文
mathematical ship form-
In addition, the second part of text adopts mmg segregative math model and correlative series test result and built ship manoeuvre movement equation of one propeller and one rudder ocean transport ship in still deep water. besides, the text used math model to workout calculated program that was modeled on ship ' s turning trajectory and zigzag manoeuvre
另外,論文後半部基於mmg分離式數學模型及相關的系列化試驗結果,建立了單槳單舵海洋運輸船舶在靜水中的船舶操縱運動方程,利用數學模型,編制了計算程序,對船舶回轉運動、 z形操縱運動進行了數學模擬。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。Firstly, by analyzing the shortcoming of the traditional methods, the paper sets up a new model which can be used to calculate the optimum assignment of fire power for heavy artillery weapons. secondly, using the model to study and calculate the optimum assignment of fire power for heavy artillery weapons and for ship - loaded heavy artillery guns at area targets. in the paper the software that can be used to evaluate the optimum assignment of fire power for heavy artillery weapons is set up
本文從研究傳統決定最優火力分配模型的不足入手,應用高等數學、軍事運籌學以及炮兵射擊理論等知識研究建立最優火力分配數學模型,爾后應用該模型研究對小幅員目標和幅員目標的最優火力分配問題:研究計算機決定最優火力分配的方法和軟體編制;研究船載炮射擊時的最優火力分配模型及模型應用問題,得出了一些有益的結論。By analyzing ship maneuvering motion, we can build ship maneuvering motion mathematic model and perform ship maneuvering motion simulation. thus not only ship maneuverability and running status can be predicted, but also port and channel design can be optimized
通過分析船舶操縱運動,建立船舶操縱運動數學模型並進一步研究船舶操縱運動模擬,不僅可以對船舶操縱性能、運行狀態作出預報,還可對港口、航道設計提供指導。Abstract : this paper analyses the necessity and urgency of exploitation of a marine collis ion - avoidance expert system. it specifies the thinking, scheme and the criterion of the software and makes a study of a mathematical model of risk degree
文摘:分析了航海避碰專家系統軟體開發的必要性與緊迫性,並對整個軟體開發的思路、方法及軟體要求作了論述,同時建立了船舶避碰危險度的數學模型The third chapter is the highlight of the text which focuses on the analysis of the classical colliding case at the " crossing situation ", calculating the distance between two vessels in the state of " involving risk of collision ", approaching a " close - quarters situation " and the " immediate danger situation " through the mathematical model, the thesis sums up the lessons and the prevention of the colliding accidents in every stage at the " crossing situation " by combining with the qualitative analysis, and puts forth a series of methods for avoiding collision aim at three different patterns at the " crossing situation "
包括三個階段計算臨界值數學模型的建立。第三篇是本文的重點,主要對典型交叉相遇碰撞事故進行了分析。通過相應的數學模型計算出兩船碰撞危險形成時機,緊迫局面與緊迫危險形成時的兩船距離,結合定性分析來總結每一交叉態勢碰撞事故的教訓與預防,並提出了一系列針對三種不同交叉態勢的不同避碰方法。The main content of the fourt h chapter is math model, includes ship movement equation model, movement responding model, ship transfer excursion model, wind and current floating excursion calculating model, the occupying fairway width calculating model for determining voyage and so on
第四章為數學模型研究,主要的數學模型有:船舶運動方程模型、武漢理工大學碩士學位論文運動響應模型、船舶偏移量模型、風流致船舶漂移量的計算模型、定距離船舶航行所佔航寬模型。In the process of the system study, the knowledge in the domain of ship collision avoidance is analyzed and the collision mechanism, process and the tactic are studied firstly. and then, using the fuzzy mathematics theory, the fuzzy mathematical model of judging collision risk is built, which take into account of the factors such as ship maneuverability, visibility and so on. in addition, based on the expert system theory, a design method of ship intelligent collision avoidance expert system is put forward, and the frame of ship intelligent collision avoidance expert system is built
在系統的研究過程中,首先對船舶避碰領域知識進行分析,並研究了船舶碰撞的原理、過程及對策;然後運用模糊數學理論,建立了一種評判碰撞危險度的模糊數學模型,該模型考慮了船舶的操縱性能、能見度等多種因素;接著根據專家系統理論,提出了一種船舶智能避碰專家系統的設計思路,並構建了一種船舶智能避碰專家系統的框架;最後以visualbasic6 . 0作為軟體開發平臺,設計了一種具有良好的可視化人機交互界面的船舶智能避碰專家系統軟體。Based on the theory of safety evaluation and risk assessment, this paper first ascertained the evaluating indices affecting ships ' seaworthiness and classified them according to their importance degrees by experts investigation, and used judgment matrix method to calculate weight of the evaluating indices, and then got the membership function by fuzzy collection theory, and finally established the mathematical model to realize a fuzzy comprehensive evaluation to ships ' seaworthiness
摘要根據安全評價理論、風險評估理論,通過專家調查方式確定影響船舶適航性的評價指標並按照重要程度進行分類,然後採用判斷矩陣法計算評價指標的權重,運用模糊集合理論確定隸屬函數,進而建立數學模型,實現對船舶適航性的模糊綜合評價。The second chapter studies the economy of ship ' s power plants, based on the aspects of lowering fuel cost, waste heat recovery, the match of ship, machinery and propeller, increasing propulsion efficiency, increasing the economy of ship ' s power plants, etc. the third chapter discusses in detail the control measures of voyage change cost, analysizes systematically the voyage change cost based on the way of fuel cost, harbor cost, voyage venture cost. the fourth chapter studies the structures and control measures of seafarers cost, maintenance cost, spare parts and stores cost, lubricating oil cost, etc. which are relatively easy to be controlled ; based on the state maintenance decision - making, a mathematical model is put forward, the validity and its solve process are discussed. the control measures of spare parts, fuel cost and lubricating oil cost should be based on scientific budget, through the control means of application, reception, usage, store check, try to acquire the inosculation of theory
第一章主要討論營運船舶運輸成本,對船舶運輸成本的概念、結構、性質與分攤、成本細分進行了分析,從宏觀上闡明了船舶運輸成本的生存環境和生長趨勢;第二章研究了船舶動力裝置的經濟性,在營運船舶降低油耗、廢熱利用、船機槳匹配、提高推進效率、提高船舶動力裝置經濟性的有效途徑等方面進行了闡述和論證;第三章詳細論述並論證了航次變動成本的控制措施,全面系統地分析和總結了航次變動成本,通過對燃油成本、港口使費、航次風險成本的分析與控制,提出了航次風險成本的概念並論述了若干航次風險成本的控制措施;第四章對船舶營運成本中的船員費用控制、維修保養及其費用控制、船舶備件物料管理及其費用控制等幾個主要可控性較高的成本進行了細致的分析並分別討論了相互的控制措施,提出了基於狀態維修決策的馬爾可夫數學模型並論證了模型的正確性及具體解算步驟,對于備件、燃潤物料的控制堅持以科學的預算為前提,以申領、接收、使用、盤存為控制環節,切實做到理論與實踐的密切結合;第五章,結合營運成本的預核算的案例,對船舶營運成本的預算及核算進行了有益的探討,旨在揭示成本發生的動因,並給出了成本預算、核算的編制方法。In the light of the laggard dry bulk logistics of our country and the broad development prospect, this thesis studies the problem of port based import iron ore logistics system in detail. in this thesis a mathematics model is built up to compute the least overall expense, for supporting the import ire ore logistics system. and the expense include port, shipping, cargo owner and other correlative sides
本文則針對我國干散貨物流比較落後的局面和干散貨物流發展的廣闊空間,以港口為切入點,就進口鐵礦石以港口為節點的物流問題進行詳細的探討和研究,在充分考慮港口、船方、貨方等各方面利益的前提下,通過建立數學模型研究流通費用最小的綜合物流系統。According to the practical observation, a math method to calculate the traffic capacity is discussed. a grey incidence analysis model is set up to analyze incidence degree between environment factors and the vessel accidents in port in order to find out the instinct reason in chapter 4. that the visibility and the vessel traffic are the most two important factors is concluded
第四章利用灰色系統理論對港口船舶交通事故主致因進行灰色關聯分析,並且對計算模型的改進提出了作者的見解,用灰色綜合關聯度的數學模型對沿海六個港口環境因素八個指標與船舶交通事故的關聯度進行了定量的計算;指出能見度不良和港口船舶交通量是港口環境中導致船舶交通事故的最主要影響因素。On basis of ship strength theory, mathematical model and solvable method of limited deflections of ships are established, and deflection criterion to check the demands of longitudinal strength of intact ships or damaged ships is proposed. it is convenient for the preliminary ship design
根據船體梁強度理論,建立船舶極限撓度數學模型與求解方法,提出利用船舶撓度檢驗船體總縱強度的新方法,可以較方便地對正常或破損船舶總縱剩餘強度進行檢驗,便於初步設計。Application research of gis were done in data display, flow analysis at inlet and outlet and information search about filling and emptying system and so on. first, edit, browse or search can be completed at the same time when the related figure is displayed. second, database which involves attribute data and space data about filling and emptying system can be created so as to do some search between figure and its attribute data
在船閘引航道信息顯示與水流分析和輸水系統信息查詢分析等方面進行了gis技術應用研究: ( 1 )使圖形與信息結合,在圖形顯示的同時,對船閘基本信息及引航道信息或輸水系統信息進行編輯、瀏覽與查詢; ( 2 )建立輸水系統屬性數據庫,便於圖形?數據互動式查詢; ( 3 )在數學模型計算分析的基礎上,將研究成果可視化。Based on the mathematical model of these forces, a simulation model is built by using the software of adams
並以耙吸式挖泥船為例,根據得出的作用力數學模型,建立了基於adams動力學分析軟體的模擬模型進行驗證。It is defined the mathematical ship hull to use mathematical function in designing hull lines
數學船型就是用數學函數表達和設計船體型線。It is defined the mathematical hull - design to use mathematical function in designing hull lines
所謂數學船型就是用數學函數表達和設計船體型線。Beacauses of numbering the hull, it is bring about the emergence of the mathematical - hull
船型的數據化導致了數學船型的出現。In modern day society, in the field of ship - design, the mathematical hull - design is a new method, which has a lot of profit
在當代船舶設計的研究工作中,數學船型的設計方法是一種相對較新的方法。Firstly a mathematical swath in full scale is studied. the numerical results of total pressure, wall shear stress, corresponding viscous resistance coefficient at different velocity and so on are obtained. the computational viscous resistance coefficients are compared with the estimated ones using empirical formula and the results are found to be in good agreement
首先對一swath數學船型做了研究,得到不同航速下的物面總壓力、物面切應力分佈及相應的粘性阻力系數等結果,並將各航速下的粘性阻力計算結果和經驗公式估算結果做了比較,吻合得較好。分享友人