次瞬態 的英文怎麼說

中文拼音 [shùntài]
次瞬態 英文
subtransient
  • : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
  • : Ⅰ名詞(眼珠一動; 一眨眼) wink; twinkling Ⅱ動詞(眨眼) wink
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  • 瞬態 : transient; instantaneous condition; transient state
  1. Powerformer have some changes in constract with the conventional generator , subsequently it also have some new problems in order to have an economical , efficient , credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design , magnetism design , thermal design and structural design are have some new changes above all , the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first , it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances , including monolayer - slot , multilayer isometric - slot and multilayer anisometric - slot then , the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second , the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced , including stable reactance , transient and subtransient reactance specially , the saturated influence of the stable reactance is considered then , the results are analysed final , it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then , it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence

    基於上述原因,本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式,考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況,並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算,並比較其結果;其,簡要介紹了有限元法計算powerformer電抗參數的原理,包括穩電抗、電抗和超電抗,對穩電抗考慮飽和影響,對結果進行分析;最後,介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢,看看繞組排列對諧波磁勢的影響。
  2. This testing system is designed according to the germany standard, to test many dynamic parameters in the moment of ignition time. such as the primary coil current, secondary coil current, high voltage and time signal

    本文研製的測試系統依照德國標準進行設計,實現對點火間產生的初級與級線圈電流、電壓及時間等動參數的測試。
  3. Some related techniques and applications on supply chain are described. through studying the order - decomposing process simulation, this dissertation defines the two agent classes : coordination & resource agent, maps the order - decomposing process into a real - time control process formed by a group of agents, proposes finite state machine as a kind of ideal modeling approach used to analyze the real - time control process, describes the conversation rules of agent conversation classes, identifies agents & conversation rules and develops the conversation models by using the framework provided by jafmas, jdk1. 1 integrated development environment & java. according to the structural characteristics, this dissertation transforms the optimization of series supply chain design into multi - stage decision - making problem and develops an optimization model for it

    在對國內外供需鏈研究與應用進行大量調研分析的基礎上,本文給出了供需鏈的定義;闡述了供需鏈管理范疇的內涵、外延及其管理目標;綜述了供需鏈研究的現狀;在對訂單處理流程分析的基礎上,定義了兩種代理類:協調代理和資源代理,創見性地把訂單分解?匹配過程映射為一個由多個代理組成的實時控制過程;針對實時控制過程時狀難以描述的特點,本文首把有限狀機fsm應用到訂單分解?匹配過程中,用以描述代理會話類的會話規則;在jafmas平臺上,利用jdk1 . 1集成開發環境以及面向對象編程語言java設計了jafmas的面向對象代理模型,實現了代理會話規則的有限狀機模型。
  4. 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特性,並與球形爆炸容器內已測定的揚塵湍流特性進行了比較,對系綜平均法用於揚塵湍流的測量誤差與測量數的關系進行了探討。
  5. One dimension cubic finite volume methods and analysis for the transient behavior of a semiconductor device

    半導體問題的一維三有限體積方法及分析
  6. The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh, also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements, a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements, mapping the node temperature and the equivalent plastic strain on the integration points

    利用基於變步長中心差分格式的顯式積分方法分析軋制過程;提取穩單元集節點形成截面網格;利用隱式積分方法分析軋制道間隙溫度場;對型鋼斷面進行平面四邊形網格劃分並映射節點溫度數據;利用六面體單元構建有限元分析模型,映射單元節點的溫度、積分點的等效塑性應變,進行數值分析。
  7. Secondly, the transient characteristics of fn tunneling and hot hole ( hh ) stress induced leakage current ( silc ) in ultra - thin gate oxide are investigated respectively in this dissertation

    ,本文分別研究了fn隧穿應力和熱空穴( hh )應力導致的超薄柵氧化層漏電流特性。
  8. The transient mathematical equations are addressed for the coupled heat and moisture transfer by taking account of moisture accumulation procedure. an analytical method by means of the transfer function is proposed to predict the transient distributions of temperature and moisture content at different interfaces in walls. a numerical analysis approach based on an efficient finite - difference method is developed to deal with the procedure of coupled heat and moisture transfer in a multilayer wall with nonlinear boundary conditions considered

    建立了考慮濕積累過程的熱濕耦合模型,在方程中引入了濕積累項;發展了一種傳遞函數解析方法進行墻體內不同剖面處溫度和含濕量的動預測;首提出了一種基於有效有限差分法預測非線性邊界條件下多層多孔結構內的傳熱傳濕過程的數值分析方法,求解過程中考慮了邊界條件,從而避免了通常處理中由於邊界條件設定為常數而給計算帶來的誤差,對于多層結構每一層物性參數的非連續性,則採用了有效的有限差分逼近處理。
  9. In this paper, the repairable queuing system with police is studied. some important queuing quantities and reliability quantities are in detail discussed as follows : ( 1 ) using the renewal process theory and the method of stochastic decomposition, both the transient and equilibrium distributions of the queue length from any state are discussed, and the recursion expression of the equilibrium distribution is given by furthermore, the generating function of equilibrium queuing length distribution is given by ( 2 ) the distribution of waiting time is discussed, and the mean waiting time is given by ( 3 ) the departure of the system is discussed, and the mean value of departure customers when is given by

    具體如下: ( 1 )利用更新過程理論和隨機分解方法,討論了從任意初始狀出發隊長分佈的解和穩解,得到了隊長平穩分佈的遞推公式:並進一步求得了系統的穩隊長分佈的母函數( 2 )討論了穩等待時間分佈,求得了平均等待時間: ( 3 )討論了系統的輸出過程,求得了長期單位時間內離去顧客的平均數: ( 4 )討論了服務臺的不可用度,得到了穩不可用度: ( 5 )討論了內服務臺平均故障數,求得了長期單位時間內的平均故障
  10. In order to improve the numerical solution of coupled equation to the dam - reservoir interaction system, the high - precise integration is generalized from linear problem to the nonlinear one. this work promoted the development of high - precise integration applied to the coupled system of fluid - solid

    本文首將非齊精細積分方法從線性荷載的特殊情況,推廣到普遍情況,並導出了具體實用的分析方法,有力的推動了流固耦合及動力系統反應的高精度求解方法的新發展。
  11. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面: 1 、針對頻率選擇性衰落通道:結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法,與傳統方法相比,該方法計算量更小,收斂速度更快,性能更優,且對系統階的過確定表現穩健,具有實際均衡應用價值; 2 、針對時間選擇性衰落通道:提出一種基於迫零均衡的時間選擇性通道均衡方法,演算法結構簡單; 3 、針對時變色散通道:利用均值曲線提取通道時變信息,對之ar建模,利用卡爾曼濾波器跟蹤時變通道抽頭變化,可以快速跟蹤通道變化;基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法,提出了新的單輸入多輸出色散時變通道均衡與識別演算法,同樣具有對通道階過確定保持穩健的優點;結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法;研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題,給出一種時變系統處理模型。
  12. " second, jhe failure process of lpg vessel usually includes two phasest the crack formation and the crack propagation. after the temperatat field distribution and the iil. stress field distribution of lpg vessel without cracks are calculated, the stress intensity factor of lpg vessel with initial radial crack as well as surface crack are calculated and analyzed

    ,液化氣容器的失效過程通常分為裂紋形成和裂紋擴展兩個階段,本文在對無裂紋液化氣容器的溫度場和應力場進行了計算后,對含有初始表面裂紋的液化氣容器的應力強度因子進行了計算和分析。
  13. The separated phase of blends and carrier injection, transport and decay were firstly investigated by monitoring two different transient el peaks

    引入監測基質和雜質兩個電致峰值來研究低摻雜體系的相分離及載流子注入、遷移和湮滅過程。
  14. The analytical and experimental system for the responses of vortex blade under the impact, which can be used in the anti - impact design of vortex blade, is established in the research work of this paper

    在本研究工作中建立的渦流葉片外物撞擊響應分析系統,可供渦流葉片抗外物損傷設計時應用。
  15. The thermal state of the piston has been studied under the thermal shock in the first time. the lumped parameter system of the temperature has been established under the triangle rectangle and instantaneous impact. and the simulation results also have been got

    建立了活塞在受到矩形波、三角形波、沖擊等熱激勵時的溫度變化的集總參數模型,進而獲得了在上述熱沖擊下活塞溫度的解析解及穩解。
  16. And to the electric capacity type voltage mutual inductor, because it compares with electromagnetic type voltage mutual inductor, transient state its bad to respond characteristic, as circuit when making the short circuit two times trouble, the voltage two times delays dropping to zero while needing to pass certain one

    而對于電容式電壓互感器,由於它與電磁式電壓互感器相比,其響應特性比較差,當線路故障而使二短路時,二電壓需經過一定的時延後才能下降到零。
  17. The paper proves that in the 2d non - linear case, the coulomb gauge is been meet naturally. in the paper, the second - order isoparametric fem is adopted in the non - linear transient magnetic field simulating excited by current source and the results of transient field and static field solved by the second - order isoparametric and linear fem are compared and analyzed, besides, the effect of the eddy currents in the magnetic materials of the different conductivity is analyzed, it is obtained that the magnetic material of high magnetic conductivity and low loss should be chosen in designing of pma

    文中採用二等參元有限元法推導出在電流源激磁下的非線性磁場的計算方法和編制了相應的計算程序,並採用二等參元有限元法和雙線性有限元法分別對場和靜場進行了計算,並對計算結果進行了誤差分析,此外,還對不同電導率的導磁材料中渦流產生的影響進行了分析,得到結論設計永磁操動機構時,應選擇導磁性能好,損耗低的導磁材料。
  18. The break was assumed to be a single tube double - ended and three - tube double - ended shear break. the diameter of the break orifice is 0. 876mm and 1. 518mm respectively. the characteristic responses of main thermal - hydraulic parameters, such as primary pressure, secondary pressure, break flow rate, pressurizer level, secondary side level of steam generator and so on, were presented in this thesis

    試驗再現了核電廠蒸汽發生器單根傳熱管雙端斷裂事故和三根傳熱管雙端斷裂事故發生后的熱工水力現象,給出了事故過程中一系統壓力、二系統壓力、破口流量、蒸汽發生器二側水位、穩壓器水位、元件表面溫度等主要參數的響應。
  19. The mesh data of these two models comes from static and modal finite element analysis respectively, and their load data possesses internal successivity. according to the correlation, finite element models support me parallel and cooperative processing of static, modal and dynamic response analysis

    其中的結構響應有限元分析模型分為兩個層的模型,其網格數據分別來自於靜和模分析有限元模型,在載荷數據上具備內在繼承連續性。
  20. Finite volume element method along characteristics for the transient behavior of a semiconductor device of heat conduction

    半導體問題的二有限體積元方法及分析
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