換過發動機 的英文怎麼說

中文拼音 [huànguòfādòngjī]
換過發動機 英文
reengined
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 發 : 名詞（頭發） hair
  • 機 : machineengine
  1. The fractal theory application to fault diagnosis is tried in order to overcome the defec t of wavelet transform to nonlinear signal analysis and complicated machine diagnosis, including the concept, function and application about fractal dimension and the process of applying it to analyze the libration signal of rolling bearing and engine burning

    針對小波變換分析復雜非線性機械繫統時表現出的力不從心，又嘗試探討了分形理論在故障診斷領域中的應用，討論了分形維數的概念、物理意義和應用，並通過滾動軸承和發動機燃燒振動信號的分析例示探討和展示了應用分形方法進行故障診斷的方法和過程。
  2. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  3. To the steam generator a heat exchanger, which converts the feed water in the secondary circuit to high - pressure steam at about 67 bar or 6 700 kpa and deliver it to the " conventional island " via steam pipe for driving the turbine and generator

    內的高壓水帶到蒸汽發生器即熱交換器，蒸汽發生器會將二迴路給水轉化為約67巴或6 700千帕的高壓蒸汽，再經過蒸氣管送到常規島，以推動渦輪發電機。
  4. To the steam generator ( a heat exchanger ), which converts the feed water in the secondary circuit to high - pressure steam at about 67 bar ( or 6 700 kpa ) and deliver it to the " conventional island " via steam pipe for driving the turbine and generator

    內的高壓水帶到蒸汽發生器（即熱交換器） ，蒸汽發生器會將二迴路給水轉化為約67巴（或6700千帕）的高壓蒸汽，再經過蒸氣管送到常規島，以推動渦輪發電機。
  5. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  6. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  7. The dissertation covers the topics as follows : 1 ) based on the studies of the net structure of mers, the ideas offered to use the star - type network with server exchanger as its center ; 2 ) by the comprehensive application of virtual, simulating and computer - based graphing technology, to work out a highly - intelligentized engine room simulating system ; 3 ) the probes into designing a dynamic displaying flow chart for the mers by use of grand viewing screen with projector and of computer - based graphing technology ; 4 ) studies offered of the intelligent diagnosis of equipment errors, by which, the simulating system would be able to give early warnings before error occurs

    本文研究的內容有： （ 1 ）通過對輪機模擬器網路結構研究，提出採用以交換機為中心的星型網路結構； （ 2 ）綜合應用虛擬現實技術、模擬技術、計算機圖形技術，設計一個具有高智能化的輪機模擬系統； （ 3 ）應用大屏幕投影和計算機圖形技術，設計輪機模擬器動態示教流程圖； （ 4 ）研究輪機模似器故障的智能診斷，使模擬系統能提前對故障發生預警。
  8. With the engineering thermophysics subject as a main theory basis, the boiler, the steam turbine, the internal combustion engine and the other new, being developed power machinery and system as the research object, the application of engineering thermodynamics ， heat transfer, computer system control theory, environmental science, microelectronics technology, energy - saving technology and other knowledge ， study the process and the basic law of fuels chemical energy and liquid kinetic energy to converse to the power securely and efficiently and low ( or no ) impurely ; study the energy conversion process systems and technology of equipment automatic control ; study the producing mechanism and emission control technology of combustion pollutants ; study energy - saving technologies and the development of new energy technologies

    熱能工程是以工程熱物理學科為主要理論基礎，以鍋爐、汽輪機、內燃機和正在發展中的其它新型動力機械及系統為研究對象，運用工程熱力學、傳熱學、計算機自動控制理論、環境科學、微電子技術、節能技術等學科的知識，研究燃料的化學能和液體的動能安全、高效、低（或無）污染地轉換成動力的基本規律和過程；研究能量轉換過程中的系統和設備的自動控制技術；研究燃燒污染物生成機理與排放控制技術；研究節能技術與新能源的開發技術。
  9. The result of the calculation for tip clearance is reasonable when it is compared with theory. two ways are put forward for convention of dimension of the turbine components from high temperature to low one, which is related with tip clearance, a simple example is used to illuminate that the two ways are useful, using the method of design optimization, axiisk and a blade of a certain turhine is analysed, it showes that the method of design optimization is feasible to be used for convertion of dimension of the turbine components. finally, ansys software is used to analyzed the variation of tip clearance with the method of cyclic symmetry analysis when engine works under the conditions of temperature and rotational speed, am using a new method to deal with thermal contact resistance in the calculation

    本文完善了計算渦輪葉尖間隙的簡化演算法程序，增加了程序的計算功能，並將其應用於某高壓渦輪進行葉尖間隙分析，所得結果與理論結果進行了對比，得出修改後的程序用於葉尖間隙計算是合理的；同時提出了與葉尖間隙相關的渦輪典型部件的冷、熱態的尺寸兩種換算方法，使用優化設計的方法進行了實例分析，說明了所提出的計算方法是可行的；最後應用ansys有限元軟體利用循環對稱的方法分析了某型發動機高壓渦輪在溫度場及離心力作用下的葉尖間隙在發動機工作過程中變化情況，並分析了計算中的接觸熱阻的處理問題。
  10. The author studies on the transient process for ca6df2 ? 26 diesel engine by using engine test and software simulation method

    本文主要研究發動機在整車加速過程中有關換氣系統參數的變化情況。
  11. The programs of system are written with assemble language. in order to resolve the problem of signal jammed, not only we used hardware ( photo couplers, watchdog, special parts, etc. ), but also used some arithmetic ( average, wavelet, etc. ). after analyzing the deficiency of the popular mechanical instrument in motorcycle, this paper focuses on researching and designing the digital instrument. the developing work of ( the research of the led digital multi - parameters instrument in motorcycle ) has been finished and is being commercializing packaged

    我們採用了專用的a / d轉換器作為模擬量的測量，採用光耦器件作為車速、發動機轉速信號的輸入，採用高亮度的led器件作為在強光下顯示器件，採用兩個獨立的微處理器以提高系統的可靠性，採用模擬條和數碼管同時顯示以符合駕駛人員的習慣，同時通過改進演算法，實時處理車速和發動機轉速與數據顯示和數據存儲等技術難點。
  12. To meet the increased regulatory requirements on emission and fuel economy, the electronic control units ( ecu ) for engine is becoming more and more complex, which also makes its exploitation more difficult. the traditional method of debugging ecu through bench tests is almost outdated for its high cost, long exploitative period, unstable environment, etc. the substitute is found to be hardware - in - loop simulation

    為了滿足日趨嚴格發動機排放和燃油經濟性法規限制，發動機電控系統（ ecu ）的功能復雜程度在不斷提高，相應的開發難度也在不斷加大，通過臺架試驗來逐步調試ecu的傳統方法由於耗費大量人力物力，開發周期長，調試環境不穩定、可重復性差等缺點，已難以適應ecu系統快速升級換代的需求，對此可採用硬體在環模擬技術予以解決。
  13. Based on the different work states of engine, the engine vibration signal collected in it ' s steady work conditions is analysed by the technique of confrequency spectrum ; the signal related to the fast run - up state is processed by stft and wavelet analysis

    根據發動機的工作特點，將振動信號分為穩態振動信號和過渡態振動信號。穩態信號採用傳統的傅立葉分析方法，過渡態信號採用了短時傅立葉變換和小波方法。
  14. The main features of the system are as follows : ( 1 ) there is no direct mechanical connection between engine and wheel, so the engine can be adjusted to work at high efficiency zone. ( 2 ) the power of the engine can be transmitted to driving axle directly by the electromagnetic force, and only part of power is converted from mechanical energy into electric energy, so the power losses in energy conversion can be reduced. ( 3 ) the system can also operate as electronic continuously variable transmission

    其特點是：發動機獨立於車輪運轉，可始終在高效區工作；發動機的動力主要通過電磁力直接傳給驅動橋，僅有少部分動力經過機械能電能機械能的轉換，降低了能量轉換過程中的損失；且該系統兼備無級變速器的功能。
  15. The design of the transmission typed planetary gear power - shafted, is confirmed to cater to the request of design of the whole machine by the confirmation of the travel gear, the matching of the engine, the transmission and torque converter, the suitable transmission ratio of the transmission

    對行星式動力換檔變速箱的設計研究，是通過對整機行駛檔位的確定，發動機和變矩器及變速箱的匹配，找到合適的變速箱的傳動比，使其滿足整機的設計要求。
  16. Because the thermoacoustic conversion process that occurs in its regenerator is reversible and velocity is in phase with pressure, traveling - wave thermoacoustic engine can produce and transmit acoustic power with higher efficiency theoretically

    由於行波熱聲發動機在回熱器中進行的是可逆熱聲轉換過程，並且聲場中速度和壓力相位相同，所以可以更高效地產生和傳輸聲功。
  17. Automatic mechanical transmission as so called amt, accomplishes automatic gearshift based on manual fixed - shaft and dry clutch, which takes ecu as kernel, and then uses hydraulic system to control clutch, gearshift and manipulates throttle by adopting electronics technique and automatic gearshift theory

    電控機械式自動變速器（ amt ）是在傳統固定軸式變速器和乾式離合器的基礎上，採用電子技術和自動變速理論，以電子控制單元為核心，通過液壓執行系統控制離合器的分離與接合，選換檔操作以及發動機節氣門的調節來實現起步、換檔的自動操縱。
  18. A mathematical model is developed for simulating transient performance of the turbofan engine, in which the transient heat transfer between the components and airflow, tip clearance and components efficiency changes caused by heat transfer are analyzed

    摘要以某渦扇發動機的過渡態性能模擬為研究對象，建立了過渡過程中零部件與氣流之間的不穩定熱交換、由於熱交換引起的間隙變化以及引起的部件效率變化的數學模型，並且將此模型引入面向對象的航空渦扇發動機過渡過程性能模擬程序的框架中。
  19. The calculated result shows that there are significant influences of heat transfer on the engine ' s transient performance, and the component efficiency loss caused by tip clearance changes can not be ignored

    通過計算分析，零部件與氣流之間的熱交換對發動機過渡過程性能有顯著影響；過渡過程葉尖間隙的變化引起的部件效率損失是不容忽視的。
  20. Annihilates - 10 manufactures to be earnest, in the defense, certainlymust by the least energys, receive in exchange for the greatest costbenefit, a uygur shortcoming, annihilates - 10 engines, but also mayimprove arise suddenly the thrust boosting in on land, annihilates - 10 to be allowed to surpass to on design, the short distance takes off

    殲10製作認真，在防衛上，一定要以最少能源，換取最大成本效益，維一的缺點，是殲10的發動機，還可以改良到在陸上突發加大推力，更殲10可以超過對上的設計，更短距離起飛
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