瞬態流 的英文怎麼說
中文拼音 [shùntàiliú]
瞬態流
英文
transient flow-
Hh silc is found to have a more pronounced transient effect
熱空穴應力導致的漏電流具有更加顯著的瞬態特性。For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器，提出站模型，能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性，利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論；對于電流i噪聲、自發發射壽命_ （ sp ）噪聲、自發發射因子噪聲、光子壽命_ p噪聲，以及電流調制、 _ （ sp ）調制、調制、 _ p調制，在小信號近似下，得到了相應的激光器的傳遞函數；在大信噪比的前提下，對激光器進行了頻域分析，分別計算了它們在不同參數下的信噪比增益，分析了其抗噪聲性能。And at this foundation through the dispersed domine analyse the paper makes a great emphasis on the application of computer aided design and simulation, then designs a series of apfc design and simulation software. this paper takes out a set of designation and simulation on base of actual circuit. the reliable result, output voltage and inductance current which are got from this software are the same as the actual value
本文在對一系列apfc電路設計、模擬分析方法討論比較的基礎上，著重應用離散時域法進行了計算機輔助電路設計和模擬方法的應用探索，以此為基礎設計了pfcexpert功率因數校正電路設計、模擬軟體，針對實際電路給出了整個設計和模擬全過程，通過實驗驗證了該軟體所得到的精確穩態解、瞬態輸出電壓和電感電流，與實際電路輸出基本相同，所建立的電路模型重現了電路的運行過程，反映了電路的實際工作機理。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。Abstract : the hot wire anemometer and the ensemble average method are used to measure and study the dispersion turbulent transient feature in a closed cylindrical explosion bomb. the comparison of the dispersion turbulent parameters from different shapes of closed explosion bombs is presented. the relation between errors and numbers in dispersion turbulent measurement with the ensemble average metod is discussed
文摘:採用熱線風速儀和系綜平均法測定和研究了封閉圓柱形粉塵爆炸罐內揚塵湍流的瞬態特性，並與球形爆炸容器內已測定的揚塵湍流瞬態特性進行了比較，對系綜平均法用於揚塵湍流的測量誤差與測量次數的關系進行了探討。Three different d - fronts are defined in this paper, and the test generation is consisted of three parts : to excite the fault at first ; to maximize the iddt difference between fault - free circuit and faulty circuit at second ; and finally to minimize the effect of bypass
文中定義了三種不同的d前沿，並將測試生成分為三個部分： 1 、激活故障， 2 、使無故障電路和故障電路的瞬態電流差別最大化， 3 、減少旁路的影響。Focus on the reality that transient current testing overly relies on the test equipments, professor min yinghua from institute of computing technology of china sicence academy proposed at - speed current testing method ( idda testing ) grounded on transient current testing
針對瞬態電流測試過于依賴測試設備的現狀，中科院閔應驊教授提出了基於瞬態電流的全速電流測試方法（ iddatesting ） 。( 2 ) transient jet - interaction phenomena, challenge project, is analyzed by computational unsteady aerodynamic method. boundary condition of transient jet is established
（ 2 ）將非定常空氣動力學數值計算方法創造性地應用於姿態控制發動機瞬態流場計算。In the second part of this paper, it makes a detailed analysis among fluid - model - based, smith - principle - based and two - pd - controllers - based by comparing to the method and application of control theory. then it gets the laws to keep the control loop stable. in order to analyze the dynamic and transient characters, three congestion control algorithms mentioned above have been carried out in the nist atm network simulator and the successful outcomes are brought out
本論文對atm網路abr業務擁塞控制的控制理論演算法進行了總結，簡要分析了其優點和缺點；運用控制理論的分析方法和觀點對基於流體控制模型、史密斯預估控制模型和雙重比例微分控制模型三種擁塞控制演算法加以具體的分析，從而分析了怎樣確保控制環的穩定性；在nistatm網路模擬軟體中嵌入以上三種擁塞控制演算法，從而對演算法的動態和瞬態特性進行模擬分析，以此證明控制演算法的有效性；最後提出了今後atm網路abr業務擁塞控制演算法的發展趨勢。The primary of linear induction motor which drives the metro is installed on the chassis bogie, and because it is quite strict with laying down railway rail to use flat linear induction motor to drive metro, its secondary - - - - reaction board ( called induction board ), which is a kind of compound board of aluminum and steel, is fixed on the rail sleeper between the track. it is the airgap which is a gap between the primary and secondary of lim. the electromagnetic airgap is a very important parameter of lim
利用有限元法對直線感應電動機二維非線性渦流場進行了數值計算，並在此基礎上，運用電磁場有限元分析的專用軟體ansoftmaxwell2d對單邊型直線感應電動機的瞬態特性進行了模擬分析，得到電機運行過程中的電磁推力、法向力、初級電流、氣隙磁密等曲線，通過改變直線電機參數，分析了電機氣隙對其瞬態性能的影響。Numerical analysis of instantaneous elestohydrodynamic lubrication in point contact of spiral bevel gear with high speed
高速弧齒錐齒輪點接觸瞬態等溫彈流數值分析Transient analytical method of vane forcing response under stator - rotor wake influence
尾流激振情況下葉片強迫響應瞬態分析方法Transient flow model solution of reverse jet pulse cleaning system in high temperature ceramic filter
高溫陶瓷過濾器反向脈沖過程過濾管瞬態流場分析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The major research areas of a ship against non - contact underwater explosion include four sectors, namely, ( 1 ) the characteristics of fluid field disturbed by an underwater explosion ( loadings of underwater explosion ) ; ( 2 ) the analysis of transient fluid - structure interactions, and the corresponding dynamic responses of the ship ; ( 3 ) safety assessment of the ship structure undertaking the elastic - plastic dynamic responses ; and ( 4 ) determination of the shock environment imposed on the shipboard equipments, and evaluation of shock protection design
即非接觸水下爆炸的流場特徵（水下爆炸載荷） 、瞬態流場與結構相互作用所決定的艦船動響應分析方法、以彈塑性動變形響應分析為依據的艦船結構水下爆炸安全性評估與防護技術、以船體結構動響應為輸入條件的船用設備沖擊環境的確定方法及相應的設備抗沖擊設計分析方法。Mean velocity distribution, mean length of recirculation region and the structure of instant stream are presented by the experimental data, which help us understanding character of this flow further
實驗給出時均流速分佈、時均迴流區長度和瞬態流動結構，探討了后臺階分離流流動特性。At the same of solid rate and shearing rate, apparent viscosity in steady rheological state is lower than that in transient rheological state
相同固相率和剪切速率情況下，穩態流變的表觀粘度較瞬態流變的表觀粘度要低。Thirdly, the structure of ejecting in the base region with unmatched pressure ( sebup ) is introduced. the sebup can produce a high average pressure in the laser chamber, while the low pressure which is needed by the active medium is set up locally too. the steady flowfields and the unsteady flowfields in start - up course of sebup are also simulated with cfd method, and the experiment of sebup is made. the
在本文最後，根據以上研究的結果，提出了「基區非匹配壓力引射結構」 。這一結構的特點是，它能夠在提高光學諧振腔的平均靜壓力的同時，建立出有利於出光的局部低壓區。本文用cfd技術對它的穩態和啟動的瞬態流場進行了模擬，並實施了實驗。Transient inflow performance relationship curve theory of oil - water well
油水井瞬態流入動態關系曲線研究Find out the reason that affects the impulse press. first research the water hammer in the hydraulic impulse testing machine, find out the rules of the instantaneous flow and press
首先對液壓脈沖試驗臺的壓力沖擊?水錘（ waterhammer ）進行探討，了解管道系統壓力沖擊過程中瞬態流量和壓力的變化規律。分享友人