氣動計時器 的英文怎麼說
中文拼音 [qìdòngjìshíqì]
氣動計時器
英文
pneumatic timer- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 計時器 : calculagraph; time meter; chronoscope; timer; time market; time totalizer; elapsed timer; running...
- 計時 : reckon by time; timing; chronography
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Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing
文摘:應用計算機模擬的方法,在不考慮燃燒的冷態情況下,研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上,比較了2種不同設計方案的氣流流動特徵,尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明,阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用,同時也增加了空氣管道的阻力損失,在同樣的工況條件下需要提高管道系統的總壓力Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。The thesis focuses on the development of the dynamic simulation model of evaporators, the accomplishment of the stable and dynamic simulation of the parameters of cryogen - side, air - side and how to carry out dynamic simulation on the refrigerating effect of evaporators under different evaporating temperature and the realization of the analyses and calculations of the main parameters, such as, the wind speed of air - side and specific humidity etc, which affect the function of evaporators
本文重點是對蒸發器建立動態模擬模型,並對製冷劑側和空氣側參數進行穩態和動態模擬,同時對蒸發器在不同蒸發溫度下的製冷量進行了動態模擬,而且對影響蒸發器性能的主要參數(空氣側入口風速、入口含濕量等)進行了分析和計算。The gas sensor array testing system comprises the automated flow - injection apparatus, the data acquisition device and the pc software. sample injection and data acquisition are realized automatically through real time pc control. thereby it assures the reproducibility and reliability of testing
研製成功的氣體傳感器陣列智能測試系統由計算機實時控制,可以實現測試氣體的自動進樣和數據採集與處理,提高了測試的重復性和可靠性。It has the characteristic of non - gear - box, large output torque, small volume, easy control, fast response, high track precision, high reliability etc. the system has potential advantages over substituting for traditional hydraulic or pneumatic missile actuator servo control system and has wide prospect in the fields of aerial actuator, servo valve, robot, radar antenna etc. the system ' s operation principle, control idea, functions and realization of each component are discussed in detail
該系統在取代傳統的液壓、氣動導彈舵機伺服控制系統方面有很大潛力,同時在航空舵機、伺服閥,以及機器人關節的直接驅動、雷達天線等領域具有廣闊的應用前景。論文詳述了系統的工作原理與控制思想,以及系統方案的設計和各組成部分的功能與實現方法。Automatic electrical controls for household and similar use - part 2 - 7 : particular requirements for timers and time switches
家用和類似用途的自動電氣控制裝置.第2 - 7部分:計時器和計時開關的特殊要求Built in 25 min timer, can be disabled if not needed. pneumatic remote on off switch. separate 12 v signal light
內置25分鐘時計,氣動式遙控開關掣,分開安裝的12 v的訊號燈,可選擇內置數碼式控制器。Then in allusion to biased momentum wheel system, based on classical control system a pid controller was design about pitching channel. according to specialty of roll - yawing channel, this paper discuss long - time cycle movement and short - time cycle movement. when design the control method of long - time cycle movement, whiff thruster is used to assistant the control system. when design the control method of short - time cycle movemen, in order to sovle the problem of coundn ’ t abtain the angular velocity signal, nonminimum phase controller advanced by terasaki is used
然後針對偏置動量飛輪系統,基於經典控制理論設計俯仰通道的pid控制律,根據滾動?偏航通道耦合的特點,分別討論了由軌道角頻率和章動頻率引起的長周期運動和短周期運動。其中長周期運動控制律設計時,結合了噴氣推力控制來輔助偏置動量控制;短周期運動控制中,為了解決不能獲得角速度信號的問題,採用terasaki提出的非最小相位控制器進行控制。This paper studies the diffuser ' s influence on the fadw ' s running properties experimentally including the inner wall and outer wall of diffuser and the backpressure of the diffuser. to prevent the gas of fadw from leaking into the laser cavity because of the effect of layer and turbulence the leak - proof flakes are designed. first the method of the leak - proof flake design is studied and then its influence on the properties of fadw is studied experimentally
實驗研究了擴壓器對fadw工作性能的影響,提出了擴壓器結構和超音速噴管相對布局參考數據;研究了氣動窗口側壁防漏片的結構對氣動窗口性能的影響,並給出其工程設計方法;同時還研究了擴壓器不同的背壓對整個fadw作性能的影響,據此提出了擴壓器與引射器結合的設計方案,從而為大壓比、高性能的fadw的設計提供了進一步設計參考方法。The hydraulically actuating, electronically controlled variable valve actuator, the common rail hydraulical source and the electronic control unit have been designed and developed. the primary control strategies of the valve timing in different conditions have been discussed. the performance of the system has been researched deeply by experiments, from which, plenty of rules have been obtained, and the way to adjust valve timing, lift and duration has been put forward
研製了電控可變氣門系統的執行器? ?電控可變氣門驅動機構,設計了電控可變氣門系統的液壓驅動源? ?中壓共軌液壓源,開發了電控可變氣門系統的電子控制單元,實現了在不同工況下,氣門正時、氣門開啟持續期、氣門升程柔性的電子控制,並對不同工況下配氣正時的控制策略進行了初步探討。In the aero - optical flow field tomography measurements, all projection data of different direction must be simultaneous. and the laser nozzle flow field up - stream and down - stream strehl ratio simultaneous measurements have the synchronicity requirement. the working environment of high power laser is rigorous and complicated
在考慮了由於氣動光學流場層析測量中的多個投影方向數據的同時測量、激光器噴管流場上游和下游同時測量的同步要求,以及高能激光平臺的復雜環境多方面因素的基礎上,考慮了硬體匹配的一些問題,設計了一套高速的線陣s - h傳感器。The dissertation presents the combined theoretical, numerical and experimental studies on the experimental modeling of the actuator, the design of test rig and control system, the modeling of two - dimensional airfoil aeroelastic system, the control design of active flutter suppression, and the effect of group delay in the digital filter on the stability of aeroelastic closed - loop system
本文通過理論分析、數值模擬與風洞實驗相結合的方法,研究了超聲電機作動器建模、翼段顫振實驗裝置和控制系統設計、二維翼段氣動彈性系統建模、顫振抑制控制律設計以及數字濾波器群時延對顫振抑制閉環系統穩定性影響等問題。This product acquires engine crank corresponding phase signal and rotating speed signal, which after ecu treatment, are used together with signals collected from other load sensor ( such as shutter location sensor ) to achieve electronic control over engine ignition timing. compared with mechanical ignition timing control, this is more precise and reliable, resulting in optimized performance of engine in oil consumption, exhaust, output and torque
Fdw465b型電噴分電器總成採集發動機曲軸相位信號及轉速信號,同其它負荷傳感器(如節氣門傳感器等)採集到的信號,經電控單元ecu計算處理后,實現對發動機點火正時的電子控制,較之機械式點火正時控制更加精確、可靠,使汽車發動機系統的綜合性能得到較大提高,特別是發動機的燃油消耗率、排放、輸出功率、扭矩等方面都得到較大優化。Festo pneumatic orientation controller spc100 is deeply analyzed. design principle and control performance of the controller are studied so that design and research of the mechanical hand are guaranteed in control, which can make system work in the status of optimization
同時對festo公司氣動定位系統的控制器spc100做了深入的分析,分析控制器的設計原理及其控制特性,為機械手的研究設計做了控制上的保障,使系統能以高性能優化的狀態進行工作。The radial, circumferential and axial distributions of static pressure amplitude under post - stall conditions are measured and compared. the experimental results have proved the feasibility of using one - dimensional model to analyze the post - stall behavior and recoverability of compression systems. at the same time, the results of experiment have provided the first - hand data for analyzing and calculating vibrating response of blades under post - stall conditions
以單級軸流壓氣機實驗器為對象,研製了兩種型式的靜壓動態探針?梳形針和圓盤針,詳細測量了過失速狀態下流道中壓力沿徑向、周向和軸向分佈,驗證了用一維模型分析壓氣機過失速性能和失速可恢復性的可信度,同時為過失速狀態下葉片的振動響應分析計算提供了第一手實驗數據。Flapping - wing micro air vehicles ( fmav ) are new conceptual air vehicles. they surpass the research fields of traditional airplane design and aerodynamics in relation to application technologies, and initiate the applications of mems technologies to aviation fields
微撲翼飛行器是一種模仿鳥類或昆蟲飛行的新概念飛行器,在應用技術上它超出了傳統的飛機設計和氣動力的研究范疇,同時開創了微機電系統技術( mems )在航空領域的應用。The article put forward the general plan to realize intelligent pneumatic actuator and studied and analyzed on some of key technical questions : low power - consumption electrical - pneumatic converting unit and low power - consumption control circuit solution which is based on piezo ceramic principle and meet the requirements of intrinsically safe explosion - proof ( ib ct5 ) ; general software solution which realizes the goal of intelligence and hart communication function ; reliability design solution which answers the purpose of mtbf 16000 hours and regard electrocircuit, machine unit and software as main parts
本課題以氣動調節閥的智能化為研究目標,提出了實現氣動執行器智能化的總體方案。並對其中幾個關鍵技術難題進行了研究分析:以滿足本安型防爆要求( ib ct5 )的基於壓電陶瓷原理的電氣( i / p )轉換單元、低功耗的控制電路方案;以實現智能化和hart網路通訊功能為目標軟體總體設計方案;以mtbf 16000小時為目標和以電子電路、機械零部件、軟體為主體的整機可靠性設計方案。In this paper, dynamic inversion control law is designed to eliminate its global non - linearization and unstable aerodynamic force etc. and based on the time - scale separation principle, the control system can be divided into fast loop and slow loop. but there are still lots of unknown disturbances that may cause great damages to stability when flying
由於在飛行過程中大范圍非線性、具有非定常氣動力等特性,本文採用了非線性動態逆控制律來構成全局線性化的性質,根據時標分離的原則,設計了空天無人飛行器的快迴路和慢迴路控制器。The machine id used to press the album, and it has two cyclinders, air - opreation. the design is moresuitable to completely absorb the water inside of the album, the album will keep smooth and steady
烘乾壓力機是壓制相冊的專業設備. .機器在結構設計上更加合理,採用的是雙層溫控系統,利用空氣動力學原理想相冊內部的水分抽出.縮短了壓制相冊時間,更重要的是保證了相冊的長期不變形Then the pneumatic artificail muscle is choosed as the actuator of the bionic actuating device, which is designed by self. the operating characteristic and the control factor of the pneumatic artificial muscle are analysed. thirdly, the paper analyses the composition of the human arm, explains operating mechanism and builds the model of the bionic actuating device
接著討論了與生物肌肉工作特性相仿的幾種材料和技術,對各種材料和技術的優點缺點進行了詳細的比較,從中選取氣動人工肌肉作為本文設計仿生驅動裝置的驅動器,並分析了氣動人工肌肉的工作特性,對氣動人工肌肉工作時受哪些因素控制進行了詳細的分析。分享友人