油流系數 的英文怎麼說

中文拼音 [yóuliúxìshǔ]
油流系數 英文
oil flow coefficient
  • 油 : Ⅰ名詞1 （脂肪; 油脂） oil; fat; grease 2 （姓氏） a surname Ⅱ動詞1 （用桐油、油漆等塗抹） apply t...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. If the coefficient of engagement overlap decreases, the flow aggrandize, trapping volume and the flow pulsating ratio decreases

    隨著齒輪嚙合重合系數的減小，齒輪泵的流量增大，困油容積和流量脈動率減小。
  2. The paper described the building process of model that can identify the shock - absorber parameter of landing gear and at the same times optimize performance of system. in this paper, there are also some debate, it include identifying parameter which can not be measured, such as the air polytropic exponent and the orifice discharge coefficient of shock - absorber

    本文利用復合形優化演算法建立了起落架緩沖系統參數識別與系統優化模型，對緩沖器空氣壓縮多變指數和油孔流量系數等不可測參數的識別和著陸、滑跑載荷多目標優化問題進行了討論。
  3. The investigation on the evaporation heat transfer characteristics in a horizontal micro - fin tube for r290 - 3gs mixture shows : a ) the average evaporation heat transfer coefficient of the mixture increase with the increasing of the mass flux

    R290含油混合物在水平微肋管內流動沸騰換熱特性的實驗研究表明： a ）隨著質量流率的增加，含油混合物微肋管內的沸騰平均換熱系數增加。
  4. Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads

    第四章介紹了多執行器復合控制實驗系統和實驗方法；介紹了實驗採用的流量控制的pid演算法；並測定了執行器控制閥和閥芯位移相關的系數；做了單個執行器計算流量反饋流量控制、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控制實驗；通過實驗說明了論文提出的分流控制方法能實現大小慣性負載復合操作時的合理分流。
  5. The model of variability of submergence depth is established based on the law of volume balance, and the changing trends of parameters like submergence depth etc are analyzed. according to the principle of supply and discharge balance, the method to predict oil yield is presented. subject to different objective functions, the corresponding optimum combinations of suction parameters are analyzed, and the importance of choosing objective function to optimum combination of suction parameters is emphasized

    本文研究了油井流入動態關系，根據井筒內液量平衡原理，建立了沉沒度變化的數學模型，分析了沉沒度等參數變化規律；根據油井供、排平衡原則，得出了抽油泵排量系數相對穩定狀態下產量預測的關系；分析了不同目標函數下，油井抽汲參數的組合效果，指出了目標函數選取對參數合理組合的重要性。
  6. It is shown that : with the enhancement of er effects, the pressure and the thickness of lubricant film are obviously increased, while the friction coefficient and force are increased, the leak flow is reduced

    計算結果表明：隨著電流變效應的增強，油膜壓力和油膜厚度都有明顯提高，但是摩擦系數和摩擦力有所增加，端泄流量有所減小。
  7. And we have got the following result : 1. the technique of storing water in soil in gneiss area of tai - hang mountain : the more water in soil before rain is, the less water capability of soil is, the time shorter of water flowing from soil is, the easier the water flows on the ground ; the soil capability of reserving water of different soil thickness is terrace > acacia land > pine land > grass land, so the soil is more thick, the soil capacity which contains water is more large ; the accumulated water that flows on the ground is remarkable related with the logarithms of rain time

    太行山片麻巖區土壤蓄水規律：雨前土壤含水量越高，土壤可蓄水量越小，出流所需時間越短，容易形成地表徑流；不同土層厚度的土壤蓄水量為：梯田刺槐林地油松林地草地；累積地表徑流量與降雨時間的對數呈顯著正相關，擬合方程為w = a + blnt ，相關系數均大於0 . 92 ，即在降雨強度一定的前提下，降雨時間越長，累計地表徑流量越多。
  8. In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards

    論文第三章針對組成系統的各個模塊進行了機理建模，並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究，主要針對影響系統特性的主要參數變化，動態分析系統的輸出特性，在上下行工況中，分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響；最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。
  9. Using compressed air and transformer oil as working substance, this paper studied the pressure characteristic of internal - mixing nozzle and acquired the experimental relation on the pressure in the mixing chamber of internal - mixing nozzle against the operation parameters and structure parameters according to the method of step by step regression

    摘要以壓縮空氣和變壓器油為工質對內混式介質霧化油噴嘴的流量特性進行實驗研究，並通過逐步回歸分析的方法獲得了內混式介質霧化噴嘴油、氣流量系數與運行及結構參數的實驗關系式，可供設計使用部門參考。
  10. The effects of meor include as follows : being favorable to oil - gas percolation, changing wettability of rocks, improving hydrocarbon migration, reducing surface tension of emulsified oil, decreasing crude viscosity and improving sweep efficiency, etc

    採油微生物具有自身的優勢，有利於油氣滲流及提高採收率，尤其是微生物能改變巖石潤濕性、改善油氣運移、乳化原油降低表面張力，微生物及代謝產物還對原油具有降粘作用，對地層水產生有利影響，提高波及系數。
  11. This thesis first describes the general research development of bp network, kde, genetic algorithm, arx model and their specific application in dms such as architecture, algorithm - flow etc. then the paper introduces the distributed object technique with the focus on the description of corba and the specific developing tools visibroker. finally, a multi - client distributed monitoring system based on corba is developed with multi - technologies referred before

    本文首先系統地介紹了bp神經網路、核函數概率估計（ kde ） 、遺傳演算法（ ga ）和帶外生變量的自回歸模型（ arx ）發展和研究概況以及上述建模演算法在分散式監測系統中的應用，並給出了運用石油流化催化裂化模擬設備的數據測試結果。
  12. Accurate calculation of flow coefficient of indirect diesel engine

    非直噴式柴油機瞬態流量系數的精確計算
  13. Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging

    文摘:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。
  14. The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging

    針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。
  15. First, the working principles of the combustion control system of marine main boiler in present use and its disadvantages are discussed in the paper ; in the light of the structure and motion traits of marine main boiler, the combustion control systems of single and double cross amplitude limits are designed. at the same time, the schematic diagram of system and recovery curves of some relative parameters are given, the system working principles and its advantages and disadvantages are discussed. based on the combustion control system of dual - crisscross amplitude limit, by selecting the independent variable, the fixed offset is improved into variable offset, the combustion control system of variable offset dual - crisscross amplitude limit is designed

    首先討論了目前船用主鍋爐燃燒控制系統的工作原理及存在的不足；針對船用主鍋爐的結構及運行特點，設計了單交叉限幅燃燒控制系統和雙交叉限幅燃燒控制系統，同時給出了系統原理圖及有關參數的過渡過程曲線，討論了系統工作原理及優缺點；在雙交叉限幅燃燒控制系統的基礎上，將固定偏置經過自變量的選取，改進成變偏置，設計了變偏置雙交叉限幅燃燒控制系統，給出了系統原理圖及有關參數的過渡過程曲線，同時也給出了空氣壓力和燃油流量正負偏置函數與變偏置折線函數的關系式。
  16. The keep - up pressure recovery of most oil - gas reservoirs and the gas storage measurement on some depletion reservoirs have been made in china, which have endlessly caused variation of pressure difference between inside - pore and outside - pore, followed by always changes of compressibility, porosity and permeability of rocks due to injection and production time and again of reservoir fluids

    摘要目前我國許多油氣藏進行了保壓開采措施及對部分衰竭油氣藏進行儲氣庫改造措施，油氣藏流體反復注采，使得孔隙內外壓差不斷變化，導致巖石壓縮系數、孔隙度、滲透率發生著不斷的變化。
  17. The 1owing material balance method, a new method for reservoir engineering dynamic analysis, is presented and applied to the well test analysis of heavy oil steam stimulation, calculating the heating radius and formation contaminant factor in this paper

    摘要介紹了一種新的油藏工程動態分析方法流動物質平衡方法，並將該方法應用於稠油蒸汽吞吐試井分析，計算出加熱半徑和地層污染系數。
  18. Through the analysis of fuel spray, the reason that how the flow changes affect the engine performance is illustrated

    通過對燃油噴霧的分析，揭示了流量系數影響柴油機性能的原因。
  19. Add up to the oil deposit carries on parameters such as year, month output, daily output and oil pressure moisture content etc, and uses the man - made nerve communication method to analyze the nonhomogeneity characteristic of seam cave mould oil deposit system

    油氣從地層向井筒的動態滲流過程，直接受儲層各向異性影響。對油藏進行年度、月產量、日產量、油壓含水率等參數統計，利用人工神經網路方法分析縫洞型油藏系統的非均質特徵。
  20. The system included 2 rotational speed measurement channels, oil flow measurement channels, 8 pressure measurement channels, which are based on pci bus in a industrial computer. the system software realized functions of which parameters are measured and states are monitored

    整個系統包括轉速測量通道2個、燃油流量測量通道2個、壓力測量通道8個，基於pci總線，在工控機上運行，由相應的系統軟體實現參數測試與狀態監視。
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