穩態值 的英文怎麼說

中文拼音 [wěntàizhí]
穩態值 英文
steady state value
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : 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
  1. No conformity was found between the measured values and the calculated stationary temperature field.

    人們發現實測和預測的溫度場之間並不相符。
  2. This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content. to prevent the insufficiency or excess of sand water content, the amount of the first addition is set as 80 % of the total water addition amount. after the first water addition, we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand. each time we add water, the correction coefficient is introduced to adapt to the change in the composition of sand. the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time, but also directs how the sand composition should be adjusted, which can better conform to the actual situation

    分析了影響型砂緊實率控制精度的因素,建立了型砂緊實率-水分回歸系數的動模型.為防止型砂水分不足或過量,將第一次加水量設定為總加水量的80 .第一次加水后,對型砂緊實率採用ar模型進行預測,以縮短型砂混制時間.每次加水后,引入修正系數,以適應型砂組成的變化.實驗表明,該數學模型不僅使型砂水分含量在較短時間內達到最佳范圍,同時可指示對型砂組成進行調整,能較好地符合實際情況
  3. In this paper, the rotating machinery at high speed is studied. there are discussed about numerical calculating methods for non - linear dynamical system, the rotor system radial impact and rubbing dynamics behavior analysis having the nonlinear rigidity on the unsteady and non - linear oil film, the rotor system dynamics behavior analysis with bending - torsional - pendular coupling vibrations, application of wavelet, fractal and network in fault diagnosis. the main works in this paper are as follows : ( 1 )

    本文以高速旋轉機械為主要研究對象,系統、深入地研究了非線性動力學系統的數計算方法、具有非線性剛度的轉子系統在非非線性油膜力作用下的徑向碰摩動力學行為、轉子彎扭擺耦合振動的動力學分析、小波和分形理論及人工神經網路在故障診斷中的應用問題。
  4. 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和瞬特性,利用此模型對具有重要實用價的= 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。
  5. On the boundary value problem of the second order stationary wave diffraction potential

    關於二階波浪繞射勢解邊問題
  6. Robert c gauthier, mike ashman, athanasios frangioudakis, hawie mende and shanjun ma, radiation - pressure - based cylindrically shaped microactuator capable of smooth, continuous, reversible and stepped rotation, applied optics, vol. 38, no. 22 ( 1999 ) 4850 ? 4860

    馬善鈞,徐學翔,空間飛行體與壓縮區內等離子體非相互作用的數模擬,空間科學學報,第21卷,第4期, ( 2001 ) 305 - - 310 。
  7. In the chapter two we discussed that the server would first use speed - 1 to serve customers when the system entered the busy state from the empty state, but when the server found the number of customers in the system exceeded the thresh - n during serving, after finishing the service of current customer it would use speed - 2 to serve the next customer till there is no customer. by the method of supplementary variable, l - transition and constructing vector markov, we attained the distribution of the queue length, the distribution of wait - time, the distribution of stay - time, the utility and etc. in the last part of this chapter, we discussed the optimal n * for thresh n which minimizing the cost function and we illustrate the cost function behaves for various parameter selections by a numerical study

    在本文第二章討論了當系統從空閑進入忙期時是服務臺以速度1進行服務,但一旦對某顧客服務完畢時如發現系統中的顧客數超過n時就以速度2服務后續顧客直到系統變空的可修排隊系統,通過構造各種向量馬氏過程和吸收向量馬氏過程,獲得了瞬隊長分佈、等待時間分佈、逗留時間分佈、更新周期分佈等一系列排隊指標以及可用度、可靠度等一些可靠性指標,在本章最後又從系統如何更好節省費用角度出發討論了門限n的最優取問題,並利用mathematic軟體對費用函數進行了數模擬。
  8. In this paper, based on the amplitude transport equation of fast varying field and the low frequency disturbance equation of electr on density, the evolutions of the density distribution of charged particles and the collapse of electric field have been calculated numerically in two dimensions with three field components under the condition of transverse wave

    所以本文採用了ftcs有限差分格式方法,利用二維三分量軸對稱,對空間飛行體與壓縮區內等離子體非相互作用過程進行數模擬,得到了電荷密度擾動與電場的變化情況。
  9. 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瞬軋制過程;提取單元集節點形成截面網格;利用隱式積分方法分析軋制道次間隙瞬溫度場;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,進行數分析。
  10. 3. for the two - region model of one - dimensional solute transport through heterogeneous soils considering scale - dependent dispersion and immobile region under steady state flow, the numerical model is obtained by characteristic finite element method

    對于水流條件下,非均質土壤中考慮水動力彌散尺度效應以及不動水體存在時,一維溶質運移的兩區模型,建立了相應的特徵有限元數模型。
  11. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫零序電流幅法」 、 「基波零序電流方向法」 、 「7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用,不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷,更將故障定位在故障線路最小故障區段。
  12. Then we can estimate the lubrication state between the friction faces. with the old large numbers of testing numbers the wear parameter k of every point on the steady work ' s cam can be decided

    通過計算凸輪表面各位置潤滑油膜厚度,判斷其潤滑狀,結合以前大量的實驗數據,確定出凸輪各位置在下工作時的磨損系數k
  13. Numerical study of an unsteady transfer heat underground pipeline

    埋地輸油管道非傳熱數研究
  14. The results indicate that the position of sensitive plates is located at the section of middle or upper in tower but not near by feeding plate, and the smaller reflux ratio, the closer overhead of distillation tower. accurate calculation for flash is solved using matlab, and the result is correct and reasonable. complicated multi - components distillation and crude distillation are simulated using chemcad, and results are reasonable about profiles of flow for vapor and liquid as well as temperature in the tower

    分析的結果表明精餾塔靈敏板位置並不在進料板附近,而是位於精餾段的中上部,且迴流比愈小,愈靠近塔頂;利用matlab實現了蒸餾過程的嚴格計算,與參考比較,結果正確、合理;藉助于chemcad進行常減壓塔的模擬計算,得出了流量和溫度在塔內的分佈,經過理論分析,結果合理,可為實際生產提供參考。
  15. A variety of mathematical models based on continuous equation and the momentum equation and many solutions partial differential equation value computational method in the open canal turbulent flow solution, still could widely apply and yield the satisfactory result

    但是,非的navier - stokes方程對于明渠水流的瞬時運動還是適用的,以連續方程和動量方程為基礎,建立的各種數學模型和許多求解偏微分方程的數計算方法在明渠紊流的求解中仍能廣泛應用。
  16. In steady and transient state, air temperature field and flow field inside the thermoelectric refrigerator, loaded and no loaded, are calculated by using a cfd software pheonics

    採用pheonics數模擬軟體,對熱電冰箱的無負載瞬工作、有負載和瞬工作時箱內溫度場和流場進行了數模擬。
  17. The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given

    該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路,以全橋式電路為例分析研究了這類換器工作模式、原理與電壓瞬時反饋控制策略,給出了變換器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準正弦電路的設計。
  18. When the new steady state of closed - loop system can be planed, the steady - state input distribution can be produced such that the lowest possible number and positions of actuators can be determined

    當此閉環路系統的新穩態值被指定時,則可由下輸入分怖型決定控制器可能的最少數量反其位置。
  19. The buck ml converter splits voltage constraints among series - connected switches through flying capacitors. an effective control of flying - capacitor voltage is required to guarantee voltage balancing across semiconductors

    由於各個開關管的開關特性以及驅動電路之間的差異,常會使得飛跨電容電壓偏離其穩態值
  20. The result of testing indicated that the trend of system ' s dynamic characteristic is accord with the result of theoretic analyse , and the result is reasonable , the results of system can correctly reflect the dynamic characteristic of the fact system when system fall under disturb, models or system can run in environment of all - purpose hardware and software

    測試結果表明:模塊庫中各模塊的動規律正確;穩態值與設計相比,主要參數的誤差較小,動特性的趨勢與理論分析結果吻合較好;試驗的輸出結果正確的反映了系統中各個設備的動特性;該系統能在通用硬體和軟體環境下運行。
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