航空工程問題 的英文怎麼說
中文拼音 [hángkōnggōngchéngwèntí]
航空工程問題
英文
aeronautical engineering problem- 航 : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 工 : Ⅰ名詞1 (工人和工人階級) worker; workman; the working class 2 (工作; 生產勞動) work; labour 3 ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 問 : Ⅰ動詞1 (請人解答) ask; inquire 2 (詢問; 慰問) question; ask about [after]; inquire about [aft...
- 題 : Ⅰ名詞1. (題目) subject; title; topic; problem 2. (姓氏) a surname Ⅱ動詞(寫上) inscribe; write
- 航空 : aviation; voyage
- 問題 : 1 (需回答的題目) question; problem 2 (需研究解決的矛盾等) problem; matter 3 (事故或意外) tr...
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In summary the major research work in this thesis can be drawn as follows : 1. the techncal data and research information from woridwide aviation history about bird striking to airframe have been collected and reviewed more carefully the evolutions of bird striking load models and fem numerical compatation methods to bird strike also have been sununarized. this informational research makes great help to position further thesis work scientifically 2
本文研究工作可歸納總結為以下三個方面: 1 、較全面整理綜述了鳥體撞擊飛機結構在國內外航空史上的技術資料以及鳥撞問題理論與工程研究的歷史沿革,總結了撞擊載荷研究模型、有限元數值計算方法的發展歷程等,明確了本文研究工作的科學定位。Professir yuanxian gu visited the graz university of technology, austria and the stuttgart university, germany during 13 - 17 july 2003, and gave a seminar at the department of aerospace engineering of the stuttgart university on the design optimization of thermal structures and heat transfer problems
顧元憲教授於2003年7月間訪問了奧地利格拉茨技術大學及德國斯圖加特大學,在德國斯圖加特大學航空工程系做了一次關于受熱結構的優化設計及熱傳導問題的學術報告。At present carbon fiber - reinforced composite is developed to use in some aero - engine components in our country. using the numerical method and fatigue damage theory, the buckling and fatigue on the composite materials and composites case are studied for aero - engine design
本文從實際工程背景出發,利用板殼理論和現代數值分析技術的研究成果,結合疲勞累積損傷理論,對航空發動機用的復合材料及其機匣結構的屈曲與疲勞壽命問題開展了較為系統深入的研究。Under the background of south china bluesky aviation oil co., ltd, based on the principle of modern economic theory, large scale system theory, modern enterprise management experiences and new scientific - technical achievement, paying attention to unify of the company profit, customer demand and social benefit, this paper studies the optimum of the purchase, transport and storage of the aviation oil logistics system
本文以華南藍天航空油料有限公司為具體研究背景,以現代經濟學、現代企業管理理念和最新科學技術成就為基本出發點,兼顧企業利潤、用戶需求和社會效益三方面利益的統一,應用系統工程大系統最優化原理,探討了藍天公司經營的全局優化問題。As the requirements of its function, a bus control interface board has already been designed. also the paper have provided the scenarios demonstration for the bus control interface board ( bcib ), the design for the protocol of communication, the hardware for bcib, the software for bcib, and the software for the processor ' s communication. while the analysis for the capability of real - time and the calibration and test for subsystem have been also finished. during the design, the system advanced ability, reliability, resources availability and the cost - efficency ratio are considered. the issus such as system integrated control, mutual exclusion of the shared storages, generation of handshaking signal and system self - test were resolved
本論文主要對航空自衛系統的綜合化方式進行了深入研究,並按其功能等方面要求,對航空自衛系統綜合化總線通信模塊進行了設計,主要完成了總線通信模塊方案論證、通訊協議設計、總線通信模塊硬體設計、總線通信模塊( bcib )軟體設計、處理機通信軟體設計、實時性分析、系統調試、試驗等項工作,在設計過程中,綜合考慮了系統先進性、資源利用率、費效比及可靠性等因素;重點解決了系統綜合控制方式、共享存儲器互斥、握手信號產生及系統自檢測等問題。It plays a very important role in many application, according to the point of mathematics point, its mostly application originate from equations of mathematical physics, difference equations, markov process, and so on, its purpose is to solve the problems of solid, fluid, electromagnetic, microscopic particles, system control, and etc. in practical science research and engineer applications, such as, architecture project, research of aeronautics and astronautics, bioscience, computing physics and oil reconnoiter, many large scale generalized eigenvalue problems need to be solved
它在很多應用中扮演非常重要的角色,從數學角度來看,矩陣特徵值問題的應用大多來自數學物理方程、差分方程、 markov過程等。目的是為了計算固體、流體、電磁、微觀粒子、系統控制等重大問題。在實際的科學研究與工程應用中,比如在建築工程、航空航天研究、生物科學、計算物理以及石油勘探中,都要涉及到大規模矩陣廣義特徵值問題的計算。With the development of the aircraft performance at low altitude and high speed, as well as the marked progress of eco - environmental protection, the issue of bird impact to aircraft has been concerned more and more
隨著航空器低空高速性能的發展,以及生態環境保護工程卓有成效的工作,飛行器結構鳥撞問題越來越引起人們的注意。Nowadays the issue of composite fatigue is among those primarily concerned for designing aircraft structures with long term durability and reliability
復合材料層壓板由於其高的比強度和比剛度,在現代航空航天結構上得到廣泛應用,其疲勞問題也逐漸受到工程師的重視。Airline passengers can usefully comment on the comfort or discomfort they experience, but they do well to leave the design of the plane to aeronautical engineers
飛機的乘客通常都能評論其乘機經歷是愉快還是不愉快,但是飛機設計的問題,他們最好還是讓航空工程師們去操心。Mechanically fastened joints of composite materials are mainly components in aircraft structures, which need to be subjected to static loadings and fatigue loadings during working. the prediction of damage failure and fatigue life is one of questions that designers always pay attention to
復合材料連接接頭是復合材料航空結構中的主要部件,在工作過程中,要求能承受一定的靜載荷及疲勞載荷,其損傷失效及疲勞壽命是設計人員關心的問題之一。This thesis outlines the aim and the significance of the economic evaluation and studies in detail economic evaluation methods of industrial investment project construction, on the basis of the newest studying achievements in economic evaluation field at home and overseas. meanwhile, the thesis adopts a number of economic evaluation methods for analyzing and calculating some typical projects and makes the relevant conclusions in combination with industry and enterprise realistic practice. furthermore, through practicing in the software development of the economic evaluation of the industrial investment project for hongdu aviation industry group, the author studies a lot of problems and experiences in ec onomic evaluation software design process, and puts forward the complete design thought, design principle, modular construction, software platform and programming tools
本文闡述了工業投資項目經濟評價的目的、意義,並通過系統調研國內外經濟評價領域的最新成果,對工業投資項目建設的經濟評價方法作了詳細的研究,同時,結合了工業企業的實際,採用了部分經濟評價方法,對幾個典型項目作了分析計算,得出了相應的結論,同時,通過參加洪都航空工業集團工業投資項目經濟評價軟體的開發,描述了經濟評價軟體設計編制的諸多問題和經驗,並從系統程序的設計思想、設計原則、模塊結構、開發平臺和編程工具等方面給予了充分的介紹,最後根據經濟評價方法的研究和程序的實際運行效果及取得的經濟效益進行了總結。Since 1960s, the mechanical strength reliability and structural system reliability, whose main failure modes are fatigue and service life, has achieved a great deal of development and been applied to engineering machine, aeronautical and astronautical engineering, electric apparatus, bridges, ship, civil engineering etc. with the developing of space technology and tendency of machine towards high speed, precision, automation, one realizes the importance of mechanism reliability based on the accuracy of motion, for the errors of mechanism occurred more often than that of structure, especially in the field of aeronautical and astronautical engineering and operate system of weapon
上個世紀60年代以來,以疲勞、壽命為主要失效模式的機械強度可靠性、結構體系可靠性研究得到了很大發展,並迅速應用於工程機械、航空航天、電器設備、橋梁、船舶、土木工程等。隨著空間技術的發展以及機械的高速精密化、自動化發展,人們逐漸認識到以機構動作參數的準確可靠為主要指標的可靠性問題日益突出,因為在很多機械上機構的故障多於結構的故障,尤其是在航空航天及武器操縱系統方面。由於這些機構的運轉特性,振動可靠性的研究亦佔有突出的位置。This is disadvantageous for aircraft ’ s expenses of using. this paper is the study based on arj21 spare part item which done by the rms center of the civil aviation college, nuaa and avic i commercial aircraft co., ltd. the paper discuss the support system of spare part, and emphasize the study on phased support, so solve the question about civil aircraft ’ s spare part support better
本文是以南京航空航天大學民航學院民機工程運用中心與中航商飛有限公司合作的arj21飛機的備件項目為課題背景,對整個民用飛機備件支援系統作了詳細論述,著重研究了備件階段支援的一系列問題,從而更好地解決了民機備件保障問題。Aimed to acquire high efficiency and realize high frequency of the converter, this paper takes the forepart of the aeronautical static inverter ( asi ) - dc / dc converter as research object. push - pull forward converter ( ppfc ), which adapts to be applied in low voltage, high current input power field, is proposed and studied in this paper based on comprehend to main characters of asi and references to the development of the vrm
本文以航空靜止變流器中dc dc ? dc ac結構的前級為主要研究對象,針對效率和高頻化問題,在充分考慮航空靜止變流器前級dc dc特點的基礎上,借鑒國外vrm技術的發展歷程,選擇了適合於低壓大電流場合下工作的推挽正激電路( ppfc ) ,作為基本電路拓撲,進行了一些理論與實驗的研究工作。At a & a contract customs brokers, a comprehensive service menu is open to all shippers and co - loaders all over the world and our professional and friendly staff members welcome any questions from you and will be more than happy to discuss with you to find the best solutions
公司擁有和使用的大部分設施都是為了用於全面監督貨運及清關過程,以確保客戶100 %的滿意我們對事物的快速反應,海運、航空公司所提供給我們的一手運價加上一流的員工使我司具有很高的聲譽,我們的客戶服務人員清楚地知道貨物運輸及清關過程中所存在的問題,並能為客戶作出快速的排除和解答。Powder metallurgy turbine disks are worldwide adopted in most advanced aeroengine nowadays. the research of engineering application of them is actively being carried out in our country, and the key problem urgently needed to solve is their low cycle fatigue life prediction. the low cycle fatigue failure of powder metallurgy turbine disks is mainly caused by inclusions, so it ' s important to study the effect of inclusion on the stress intensity factors ( sif ) initiation and development of crack in powder metallurgy turbine disks
當前世界上大多數先進航空發動機均採用了粉末冶金渦輪盤,我國目前正在積極開展粉末冶金渦輪盤的工程應用研究,其低周疲勞壽命預測成了亟待解決的關鍵問題,夾雜物是引起其低周疲勞失效的主要原因,因此開展夾雜物對粉末冶金渦輪盤應力強度因子及裂紋萌生與擴展的影響具有重要意義。With the development of technology in the aviation engineering, aeronautics engineering, oceanics, petroleum engineering and civil engineering, dynamics problems become more and more complex, more advanced vibration testing and analysis technology have to be provided to assure the project safety and economy rationalization
隨著航空、航天、海洋工程、石油和土木等大型結構系統技術的發展,其動力學問題日益復雜,必須對其進行高質量的動態測試和分析,以確保工程安全和經濟合理。Based on analyzing the status of domestic airline operational planning system, this dissertation determines the study subject as tail - number - assignment ( tna ) problem
本文在深入分析當前國內各航空公司生產計劃工作現狀的基礎上,選擇了飛機排班計劃作為研究課題,通過系統分析飛機排班工作的流程和要求,提出了描述飛機排班問題的數學模型。The combustion chamber outer casing and bearing chock are important parts of aero - engine. the fatigue failure of them is the most concerning problem in engineering. then, in this paper the strength and fatigue life of the outer casing and bearing chock including welding line have been analyzed
燃燒室外機匣和軸承座是航空發動機的兩種重要構件,其疲勞失效問題是工程界普遍關心的問題,基於此,本文對該兩種結構(包含焊縫)的強度和壽命進行了研究分析。For long times, most of the airlines are still in the primitive stage of manual management on maintenance information. especially in the work of troubleshooting on the civil aircraft, there are difficulties of efficient engineering information support in the field of the airport. therefore, the delays of the flights always happen, and it cost big loss of money to the airlines
在參照美國軍方最新提出的飛機維修數字化技術方案,針對國內民機維修信息管理中存在的問題,結合中國東方航空武漢有限公司的具體工程需求與實踐,本文提出一種新的民機維修信息支持系統? ?數字化綜合維修支持信息系統。分享友人