自航船模 的英文怎麼說
中文拼音 [zìhángchuánmó]
自航船模
英文
self-propulsion ship model-
The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too
比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點,探討了在減壓拖曳水池中實現實船自航點的方法,並進行了兩只螺旋槳模型的脈動壓力測試,經與空泡水洞中脈動壓力的測試結果進行比較,說明該項測試是成功的,同時也對脈動壓力的理論預報結果做了驗證。The experiment can obtain the driver and the torsion of the screw propeller of relative speed and is an important method to analyze the efficient part of push
船模自航試驗可獲得對應航速螺旋槳推力和轉矩,是分析各種推進效率成分的重要手段。In this paper, the numerical harbor should include following contents : 1. database of wave field, tidal current field, sediment field in researched area ; 2. database of ship styles. 3. numerical model used to analysis data. 4. plans of outer dike, utilities of sea line, and selections of waterway, which based on the above databases
本文認為,對于港區而言,數值化的內容應包括以下幾個方面: ( l )所研究港區的波浪場、潮流場及泥沙場等自然條件數據庫的建立; ( 2 )船型數據庫的建立; ( 3 )數值分析模式的建立; ( 4 )提出建立在自然條件基礎之上的外堤布置、碼頭岸線利用策略及航道的擬定方案(即優化模式的建立) ; ( 5 )按照經濟最優原理快速準確地提出碼頭裝卸的策略及當前方案。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。On account of the uncertainty existing in the nonlinear ship responded model, we design a dynamic adaptive ship steering controller by using adaptive backstepping. after deducing the update law of the unknown constant, we choose the controller gains to guarantee the closed loop system and the control signal global boundedness
由於船舶非線性響應模型中含有未知常參數的不確定項,因此採用自適應backstepping的方法,選擇參數自適應調節律,設計動態的船舶航向控制器,實現在線控制。Our mission is to provide test and measurement instrumentation, test - program software, and related electronics products and services to the china market and to apply china s vast reserve of cost - competitive engineering talent to design and manufacture electronic instrumentation and instrument driver software and manufacture an extensive range of electronics products for the international market
我們同時提供ate自動測試系統集成咨詢環境科學咨詢儀器模塊軟體的開發服務。我們的產品與服務已經深入電子製造服務業ems oem國防航空航天電子通訊汽車冶金石油化工自動化鐵路船舶等多個領域。This thesis develops computer monitoring system of water depth of the automatic control system for the geotextiles - laying boats used for the yangtze river
本課題依據長江航道鋪排船自動控制系統,完成鋪排船集控臺上水深計算機監視系統的開發,研究水下地形的模擬和再現。Procedure of self - propulsion tests for twin - screw displacement ships
一般排水量船模雙槳自航試驗方法The process of effluent flow during loading in self - propelled trailing suction hopper dredgers was simulated by way of physical modeling and was measured and analyzed by using the flow rate and concentration of spoil in the hoppers, particle sizes of sediments at the inlet and outlet of the effluent flow pipe and hopper volume as the major control parameters
摘要通過物理模型試驗模擬自航耙吸挖泥船裝艙溢流施工過程,以艙內流速、艙內濃度、溢流進出口泥沙粒徑、裝艙量幾方面為主要控制因素,進行實測、分析,並比較自航耙4種常用裝艙裝置的消能效果。Three - gorges ship lift structure is one of important navigation facilities in the three - gorges projects. as far as its scale for navigation, its lifted weight and height are concerned, the ship lift structure is the greatest one in the world. in this paper taking the ship lift structure as background, the principle of mr adaptive reduced vibration control system is proposed to solve the problem of seismic whipping effect of the top machinery building of ship lift structure
三峽大壩升船機是三峽水利樞紐工程中重要的通航設施之一。就其通航規模、提升重量及高度而言,均屬國內外已建、在建升船機之首位。本文以該大型升船機為工程背景,對升船機頂部廠房地震鞭梢效應問題提出了磁流變智能自適應減震控制的原理、設計方法和效果分析。There are many sorts of the modern dredgers, to adapt the various working regions, and soil conditions etc. it is inevitable to select to build the large self - propelled trailing suction hopper dredgers for shanghai channel bureau, because of the developments of the big - scale ports and channels at home and abroad, and the bad working conditions offshore, and the business direction
現代挖泥船有各種類型,它們適用於不同的施工區域與土質等工況條件。世界與國內港口航道的發展愈來愈體現出規模大,向外海推進和施工條件惡劣的特徵,從上海航道局的企業經營定位出發,建造大型自航耙吸挖泥船是首選方案。Abstract : based on the results of hydraulic model test and remote - control ship model, the unsteady flow characteristics in the downstream approach channel and the reaches from three gorges project to gezhouba project and navigation conditions in these reaches during the tgp flood - discharge are analyzed. the measures of raising navigation discharge level and improving navigation conditions are given
文摘:根據水工模型試驗成果,分析了三峽工程泄洪時壩下游引航道和兩壩間河段(三峽至葛洲壩)的非恆定波流運動特性,結合遙控自航船模試驗對兩壩間的通航水流條件進行了分析評價,並提出了提高通航流量標準、改善通航條件的相應措施。Code for manoeuvering tests of free - running model of surface ship and standard form for presentatiion of test results
水面自航船模操縱性試驗規程及其結果的標準表達形式Model underwater resistance and self. propulsion test code for submarines
潛艇船模水下阻力自航試驗規程Test method of single screw model self - propulsion for general displacement ship
一般排水型船船模單槳自航試驗方法This thesis is composed of seven chapters : the first chapter is the introduction of this thesis. it is summary of the background, the technology method, and the significance of research ; in the second chapter, the writer propounded the new method for speed regulating to realize the mainland method. the introduction of the foundation of fuzzy control is the content of the third chapter. the main content of the fourth chapter is the theoretical foundation of fuzzy control ; in the fifth chapter, the writer propounded a kind of self - adaptive fuzzy controller according to the defnult of the conventional fuzzy controller and its properties and structure are alse illustrated at the same time ; the main content of the sixth chapter is the design of sa fuzzy controller ; the seventh chapter is the summary of hardware and software of vfsr for controlling system
本論文共分七章:第一章是緒論,簡介課題研究的背景、技術方法及研究意義;第二章簡單分析了傳統pid調速技術存在的問題,提出新的調速實現方案;第三章給出了模糊集合論中的一些基本概念、運算定理等;第四章主要介紹模糊控制的工作原理,並指出常規模糊控制的缺陷及其多種改進方案;在第五章中,作者根據常規模糊控制器的不足,設計了自適應模糊控制器,並闡述了它的性能結構和工作原理;第六章的主要內容是自適應模糊控制器的設計;第七章是船模純粹自航試驗調速系統的實現。Through the practice, the effect that the ac speed adjusting system is controlled by fuzzy control is good. the main content of this thesis is to design a kind of self - adaptive fuzzy controller applying in vfsr for ship model experiment to meet with the request mentioned above
電力電子技術隨著現代控制技術的發展尤其是智能控制技術的發展,實現純粹自航已不再是難題。本論文研究的是在純粹自航試驗船模電機的調速系統中,引入自適應模糊控制,改善系統的調速性能和控制策略。The basic link carries out the function of the conventional fuzzy controller ; the adaptive link performs the modification of the control rules and includes three keys : the properties measurement, the rectification of controlling variable and the modification of the control rules. this method is simple. it is also flexible and convenience to modify. the result of the will testify that the design way is correct and the sa fuzzy controller is useful. for short of time, 1 just focused on theoretical discussion of acvf speed regulating system of sa fuzzy control
基礎層完成和常規模糊控制器一樣的功能;自適應層則執行控制規則的修改,包含性能測量、控制量校正及控制規則修改三個關鍵步驟。這種方案設計思路簡單、修改靈活方便,體現武漢理工大學碩士學位論文這種自適應模糊控制的優越性。山于時間,本文僅從理論角度討論了船模自航試驗調速方案的自適應模糊控制,進一步更深入的實踐研究是今後亟待完成的任務。Aiming at the control feature of large ship, the authors designed a 2 - rank derivative multi - step neural network predictive model and the algorithm of the large delay ship ' s course, and presented a fuzzy control autopilot scheme based on the model with rbf neural network and fcmac controller, it solved problems of model online identification and controller online design in traditional adaptive control, so that the high precision output follow - up control of large ship with large delay and uncertain nonlinear features can be realized
摘要針對大型船舶控制特性,設計了船舶航向的神經網路二階導數多步預測模型及其辨識和預測演算法,提出基於徑向基函數神經網路多步預測模型和模糊小腦模型關節神經網路控制器的大時滯船舶航向模糊控制自動舵方案,解決傳統自適應控制中模型的在線辨識和控制器的在線設計問題,以達到對具有大時滯、不確定非線性特性的大型船舶實現高精度輸出跟蹤控制。Introduce the latest development of the chinese manned space technology and shenzhou vi mission. public can download a set of worksheets to make a 3d paper model of the shenzhou spacecraft
介紹中國航天科技及神舟六號最新資料,市民更可在網上下載神舟號太空船模型製作紙,自行製作飛船立體模型。分享友人