航行參數 的英文怎麼說
中文拼音 [hánghángshēnshǔ]
航行參數
英文
navigational parameter-
For the avion, it ’ s the foundation of getting war ’ s dominance to design a flight path with highest survival probability using terrain and enemy ’ s situation information
對于軍用飛行器，能夠最大限度的利用地形信息和敵情信息，綜合考慮飛行器的各個相關的參數，為飛行器設計出生存概率最大的飛行航跡，是獲取戰爭空間優勢的基礎。When testing begins, the computer of the tested uav flight control system will be connected into the network as a slave. the master of the system will diagnose faults should there be any ; otherwise it will set flight parameters and load flight course data for the slave
檢測時，無人機的飛控系統計算機作為從機連入網路，如果從機的飛控系統沒有故障，主機將為從機設置飛行參數和裝定航線數據；如果有故障，則主機為從機飛控系統診斷故障。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義This paper introduces the basic structure, system composition, applicable condition, main parameters and construction procedure of the first walking underwater bed leveling machine in china, and describes the construction quality and efficiency of bed leveling in yangtze estuary deepwater channel regulation project
摘要簡要介紹我國第一臺步履式水下基床整平機的基本結構、系統組成、適用條件、主要技術參數和施工工藝，並對其在長江口深水航道治理過程中進行基床整平的實際施工質量和工效作了說明。By comparing the two types of airline networks based on the same network model parameters, it is found that the flight frequency, nonstop traffic and fare given by hub - and - spoke airline network is larger than that by fully - connected airline network, while the single flight occupancy is incomparable
基於相同的網路模型參數，對全連通航線網路和樞紐航線網路中的航班頻率、客流量、直達票價、單航班座位數之間的關系進行了研究，結果發現樞紐航線網路中的航班頻率、直達客流量和直達票價分別大於全連通航線網路中的航班頻率、直達客流量和直達票價，但是不能確定兩種航線網路中單航班座位數之間的大小關系。Secondly, introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology, and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character. thirdly, with the application of mode recognition method, completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology. fourthly, introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis, hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information
本文的研究工作主要包括以下五個部分：首先，介紹航空發動機常見的磨損故障類型，研究磨損故障的失效機理，分析磨粒的產生機理、分類以及形態特徵：其次，針對傳統鐵譜分析技術的缺點，引入圖像分析技術，再結合特徵參數優化篩選，形成基於圖像的磨粒顯微形態學特徵描述方法：然後，基於提取到的磨粒形態特徵信息，應用模式識別方法完成磨粒自動識別，並根據顆粒摩擦學的基本原理進行航空發動機磨損故障的診斷與定位：再后，鑒于單一方法不能提取足夠的故障徵兆信息進行磨損故障診斷，本文引入信息融合技術，開展航空發動機多故障徵兆信息綜合診斷方法的研究與探索；最後，基於航空發動機滑油光譜分析與鐵譜分析數據，應用時序模型、灰色模型以及組合模型進行磨損故障的預測方法研究。So the size of hydrotechnic obstructions will be reasonably controlled under the premises of shipping ' s development. this study results into a elementary river hydrotechnic obstructions assessment standard and a elementary river hydrotechnic obstructions assessment program. and the dissertation studies the calculation measures of obstructions " parameters
通過本論文的研究，得到一個初步的內河水工礙航物礙航評價標準和一個內河水工礙航物礙航評價工作程序，並對礙航物通航參數的計算方法進行了較詳細的研究。Cot1s i deri ng that t he exte ] - ioi - in t el - ference mai n1 y comes from t 11e sea fl o v l11elj i t i s un ( lel ' - i1 t el ", thi s nfr ) j { j1t i ; fi + lk, 7 : f } itft, ? } { t ! : i / cx pal7er veri fj ed t he st i ~ ol1g 1 ~ oi ) ust ness of th is fuxzy va1 - iilb1 e st l ' uctul ' c control method against the mode1 uncertainties and external disturhances, such as the variat ions of the sea current i s sdeed and direct ion, ancl it a1 so coinpared it se1f wi t. h the l > ji ) contl ~ o1 ler in comnlon use and the regu1ar variable structure contro11 er
論文分別討論了潛器縱向，橫向和航向三個子系統在不同條件下的控制問題，考慮到該潛器潛航時外界干擾主要來自海流，驗證了模糊變結構控制方法對模型參數時變及海流速度、方向變化的強魯棒性，同時將該控制器跟實際工程中常用的pid控制器和常規的變結構控制器的控制效果進行比較，並結合實際情況，將該控制器同縱傾調節相結合進行控制以更好地滿足實際工程的需要。Based on a general overview of firm performance assessment theories, this study makes a comparison between traditional performance measures and strategy - oriented performance measures, analyzes the existing performance measurement system of the national aviation oil companies. the thesis has a literature review of the balanced scorecard researches and applications, expounds the advantages of the balanced scorecard over traditional measurement systems in revealing the intension of firm performance, analyzing the critical factors behind firm performance and providing information support for firm strategy, documents the relationship between the balanced scorecard and firm strategy, and puts forward the idea of strategic performance. by using the data and background information from one of those national monopoly oil companies, this study a ppraises the limits of this sort of companies " performance measurement system, applies balanced scorecard method to this kind of national monopoly oil company, designs questionnaires to collect experts " opinions, colligates the opinions, selects kpis, builds experimentally the first strategy performance assessment indicator system in this kind of company, determines the indicators " parameters, uses the real corresponding data to measure the 6 business lines of this company, through comparing the assessment result with the strategic standard, a conclusion is drawn and suggestions are put forward about how to exploit the performance potential under present conditions
在對績效測評理論進行回顧的基礎上，本文研究了傳統測評指標體系與戰略導向的測評指標體系的區別，總結了中國航空油品經營企業的績效測評現狀，對平衡計分卡理論研究和應用進行了綜述，分析了平衡計分卡在揭示績效內涵和影響績效的因素、發揮績效測評的信息作用等方面的優勢，論述了平衡計分卡與企業戰略的關系，提出了戰略績效的概念，並結合某壟斷性油品經營國有企業的實際，評述了此類企業傳統績效測評指標的局限性，借鑒平衡計分卡思路，通過設計調查問卷、收集專家意見並加以綜合分析等工作，選取關鍵績效指標，探索性地建立了中國壟斷性航油經營國企的首個企業戰略績效測評指標體系，並確定了指標有關參數，對應指標的統計口徑採用經調查獲得的測評所需數據，對該企業6個業務板塊的績效進行測評，通過對比分析得出在現有條件下如何挖掘潛力的結論和建議。All the researched results prove the era method is steady and suitable for those structures : spacecraft 、 beam - plane structure 、 truss structure 、 frame 、 bridge, etc. on the basis of the consideration of the above, the major job of the article is to discuss how to identify the parameters of the long - span structure with the method of era under the action of the wind loads
但是，國內外已有的相關文獻，對于下面的結構均進行了相關的研究，如航天器、梁板結構、桁架、框架、橋梁等。基於以上考慮，本文主要工作，就是探討在風激勵荷載作用下，如何用era演算法識別大跨空間網格屋蓋結構的模態參數。In order for using mdyb - 3 pmma safely and economically, it is of engineering significance to study the response of the kind of damage - contained canopy materials and structures withstanding service loading quantitatively, and to develop corresponding analytical techniques
為了安全和經濟地使用mdyb - 3航空有機玻璃，有必要對此材料的疲勞和斷裂特性進行系統的研究。為此，本文開展了mdyb - 3有機玻璃的斷裂參數、疲勞裂紋特性的試驗研究和裂紋擴展機理分析。On the basis of these, a simplified iced aerodynamics model is established, describes the effects of aircraft icing on aerodynamic parameters. main principle and implement method of iced aircraft envelope protection system are proposed. after ascertain iced aircraft envelope, for pilot and autopilot, open - loop and close - loop aircraft envelope protection control law respective designed, ensure the aircraft will efficiently follow the flight path specified by the pilot in the safe - flight envelope
在此基礎上，建立了簡化的飛機結冰氣動模型，以描述結冰對氣動參數的影響;給出了結冰飛行包線保護系統的基本原理及實現方法，在計算確定結冰飛行包線后，對於人工駕駛、自動駕駛飛行兩種情況，分別設計了開環、閉環飛行包線保護控制律，保證飛機在安全飛行包線內沿著預定的航線飛行。Based on underwater vehicle ' s nonlinear differential equation and observation equations, swarm intelligence algorithm is used to identify ten hydrodynamic parameters from simulation observed data of the motions of underwater vehicle
摘要通過水下航行體的狀態方程和試驗觀測方程，利用智能辨識技術對水下航行體的模擬運動數據進行了模擬辨識，求得了10個水動力參數。Chapter two ascertains main technological factor of dong gou lock reconstructing, including forecast the cargo and volume through the lock to reason about representative type of vessel designed for through the lock and its operation organize. chapter three design the renovate engineering through ascertaining the main technological factor scale of the lock, dimension, designed water level and altitude, including design of structure of the lock, lock chamber and lock gate, and select the main technological factor and pattern of headstock gear. chapter four draws a comprehensive compare of the two design scheme of the renovate project with engineering project economy evaluation method, and makes out the recommended scheme, and furthermore, to calculate the economic evaluation index of the recommended scheme and makes the economic sensitivity analysis of the scheme and finally demonstrate economic feasibility of the scheme
本論文共分四章：第一章主要介紹了原東溝船閘的地理位置和營運現狀，說明了船閘在航道建設和水資源綜合利用中的作用及東溝船閘改造的必要性；第二章東溝船閘改造的主要技術因素確定其中包括東溝船閘過閘貨種和貨運量發展的預測，並確定東溝船閘的設計代表船型及營運組織；第三章東溝船閘改造工程設計本章通過船閘改造工程主要技術參數：船閘規模、尺度、設計水位和高程等的確定，設計了二個船閘改造方案，包括鋼筋混凝土整體塢式閘首結構、閘室和閘門的設計，並選定了啟閉機的主要技術參數和型式；第四章採用了工程項目經濟評估方法對東溝船閘改造工程二個設計方案進行全面綜合比較后，確定了推薦方案。The cycle parameters of missile for turbofan engine were optimized for meeting the demand of maneuverable missile, and the developing trend of missile for turbofan engine was predicted
根據飛航導彈的要求對渦扇發動機進行了循環參數優化選擇並預測了未來渦扇發動機的發展趨勢。Because the designing fin and oar and the experiment fin and oar pro rata, so we can use the coefficients to calculate our designing fin and oar " s rising force. secondly, constituted the control system of pushing fin, and studied its control scheme. lastly, used matlab to simulate our control system, and applied ga to optimize the parameters of pid controller ; from the simulation result we can see the pushing fin has the ability of reducing the ship shake in all speed
最後，對推力鰭減搖裝置控制系統用matlab語言進行模擬，並應用遺傳演算法理論，對推力鰭控制系統中的pid控制器參數進行優化，並將模擬效果與傳統的鰭的減搖模擬效果進行對比，從模擬效果上可以看出，推力鰭減搖裝置控制系統的減搖效果在低航速下優于傳統的鰭的減搖效果，而且在中、高航速下推力鰭的減搖效果也能達到傳統鰭的減搖效果，打到了設計的目的。Secondly, towed system is considered as many rigid body systems. according to research approaches of many rigid body systematic dynamics, the towed systematic engagement calculating models is derived ; according to actual course of the towed flight, deriving mathematics model of the course of taking off and towed flight of the towing plane and of carrier rocket, and corresponding parameter calculate models
其次將牽引系統作為多剛體系統宋考慮，根據多剛體系統動力學研究方法，建立牽引系統約束方程，由此推導出約束力計算公式；根據牽引飛行實際過程，推導出載機、運載器在起飛階段，巡航飛行階段的數學模型，以及相應的參數計算模型。In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。The thesis is from guizhou aero - engine research institute, member of china aviation industry corporation i. researchers in the institute remodeled wp13aii engine into wp13b engine, resulting in the changing of the operating point and thus the abnormity of anti - surging regulator. the author aims to probe into the relation among the parameters of the anti - surging regulator, of the engine and of the main fuel regulator, ravel the failure and show how to modify the anti - surging equipment by accomplishing the modeling and simulation of the process
本課題來源於航空工業總公司第一集團貴航發動機研究所，該所在將wp13a發動機改型為wp13b發動機後由于工作點變化導致發動機防喘切油過程異常，本課題的研究目的就是通過對發動機防喘切油過程進行建模和模擬，來探討防喘調節器各結構尺寸與發動機及調節器各參數之間的關系，以及wp13b發動機防喘切油故障的原因，並給出防喘裝置改進設計的具體措施。Or, what should be taken as the real foundation to make a software test plan ? this paper solves this problem by developing a software test effort estimation model ( teem ) which is based on three software test metric models - unit test metric model, integration test metric model and system test metric model. these metric models are more accurate and more particular than other existing metric models using kloc or fps
本文從航天型號軟體的特點入手，重點研究航天型號軟體測試計劃技術；在參考現有成熟度量技術的基礎上，提出了適合我國航天型號軟體的單元測試度量模型、集成測試度量模型以及系統測試度量模型；並且在這些模型的基礎上，提出了測試工作量估計模型teem （ testeffortestimationmodel ） ，並利用最小二乘原理進行參數估計。分享友人