穩態可用度 的英文怎麼說

中文拼音 [wěntàiyòng]
穩態可用度 英文
steady-state availability
  • : 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
  • : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  1. In the study of the lumber carrier, one of the very important problem is the in spot and ultimate station due to flooding which will bring tremendous threat to the ship because of the few holds in order to study the lumber carrier buoyancy, stability and longitudinal strength under the condition of flooding, the paper adopt fundamental ship principle and iterative and accumulative concept on the basis of insumersibility theory to detailedly calculate the flooding speed flooding amount front draft after draft stability and longitudinal strength considering the ship " s sinking and inclination which will change the center of gravity and the loading station both in hold and on deck and the effect of flooding and lumber amount in holdo in the last, the paper introduces an example of the actual ship named " fei yun ling " and makes a contrast between not taking measure and taking measure which draws a reasonable conclusion and comes up to some advice the method avoids the cockamamie calculating while insures enough precision the paper draws a conclusion that not all the lumber carrier will submerge when suffering the damaged flooding if the loading or measure is suitable

    為了研究運木船舶在破艙狀下的浮性、性和強,本文在抗沉性理論的基礎上,運船舶基本原理,採了迭代和累計的思想,將船舶的進水過程劃分為很多次進水的積累,詳細計算了運木船在破艙進水的過程中,考慮到各種破艙參數、船舶本身的下沉、艙室內木材、甲板貨的裝載情況和在進水過程中船舶本身的傾斜對進水重心的影響,以及艙室內的進水量和木材對破口處進水速的影響,船舶總的進水速、進水量、首尾吃水、性的實時狀和最終船舶的總縱強,給出了計算實例,並進行了在採取泵抽水前後浮參數的對比,得出了該船舶在艙室內的貨物積載量達到某個數值時以保證船舶在破艙進水時不會沉沒,或者在當開口小於某數值時,採取適當的措施后,以使船舶避免沉沒。
  2. It has been discovered that the deformation in the primary creep regime can well described by eqution : - 0 = atm, moreover, the eqution : = a n exp ( - q / rt ) can be used to interpret phenomenally the relationship between the steady - state creep rate and stress, temperature

    蠕變的第一階段也就是減速蠕變階段的蠕變變形? _ 0 = at ~ m來描述。以唯象地解釋蠕變速率和蠕變應力和溫之間的關系。
  3. 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,運質量守恆、能量守恆和動量守恆方程建立適合動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,為更好地了解工況下各點參數的變化情況及各入口參數對蒸發器動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特性模擬計算程序,以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕和霜厚分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動模擬。
  4. For a soil or rock of water - lacked, a heat transfer theoretical model is developed, which is a steady or unsteady, the results show that reservoir temperature, thermal diffusion coefficient, inlet temperature, flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe. it can deduce that intermit running is favorable for this type of soils and rocks

    對于貧含水地下巖土層建立了與非傳熱的理論模型,分析結果表明,巖土層的熱儲溫、導溫系數、埋地換熱器進水溫、流量以及地源熱泵系統的運行時間或開停機比,都對埋地換熱器的傳熱過程產生直接影響,以推斷,對于該類型巖土層的地源熱泵系統,採間歇運行將是有利的。
  5. Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system

    雙恆定運行方案是船壓水堆核動力裝置的理想運行方案.在這種運行方案下,當裝置功率變化時,冷卻劑平均溫與蒸汽壓都保持不變,與通常採的冷卻劑平均溫恆定運行方案相比,有效地改善了核動力裝置的總體運行性能,特別是在低負荷運行時,以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件,這對于提高船核動力裝置的運行靠性和安全性具有實際意義
  6. 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值時就以速2服務后續顧客直到系統變空的修排隊系統,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等一些靠性指標,在本章最後又從系統如何更好節省費出發討論了門限n的最優取值問題,並利mathematic軟體對費函數進行了數值模擬。
  7. This material can be used to produce rolls of large size with the static compound casting technology so that the roll body is of great hardness and the roll shaft is of great strength and the roll will have good thermal stability and resistance to accident

    此類材質復合澆注工藝生產較大規格軋輥,使輥身具有高的硬而輥軸具有高的強,表現出良好的熱定性和抗事故性。
  8. 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

    數值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matlab實現了蒸餾過程的嚴格計算,與參考值比較,結果正確、合理;藉助于chemcad進行常減壓塔的模擬計算,得出了流量和溫在塔內的分佈,經過理論分析,結果合理,為實際生產提供參考。
  9. The control precision of the slider with 2400mm effective stroke can reach 0. 05mm. the properties of the position control system are not exigent, only the dynamic non - overshooting and the stable - state - precision are considered. the system has given out satisfactory result when used in practical engineering, 0. 03mm position control precision has been achieved, on account of dead band, the performance of proportional valve is worse than that of servo valve, but some advantages of proportional valve has made it more fit for industrial control

    系統方案採重復性能(反向回差)好的比例方向閥,使有效行程為2400mm的滑塊控制精達到0 . 05mm ,位控系統快速性要求不高,主要考慮系統重復精,此方案在實際工程中已經取得了滿意的效果,位置控制精達到0 . 03mm ,以取代同類產品中日本川崎重工的泵控系統。
  10. Abstract : according to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved

    文摘:根據電阻爐溫控制的特點,即只有升溫單向控制、滯后較大且具有參數時變性,利模糊推理合成法建立模糊模型並進行模糊控制器設計,為提高模糊控制的精,引入模糊變量k ,構成參數自調整模糊控制系統.該系統根據誤差和誤差變化在線自動調整控制器參數,使系統的得到改善
  11. At the same time, the pressure of dynamic state in different opening and closing velocities can be gained, on the basis of results the axial hydraulic force and the fluid force can be calculated, which offers reference and guide foundations for accurately calculating the drive force on water hydraulic valves

    同時cfd解析也以得到不同啟閉速下閥腔內的動壓力,在此基礎上計算出作於水壓閥閥芯的和瞬軸向液動力,對精確計算閥芯驅動力具有重要的參考價值和指導意義。
  12. According to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved

    根據電阻爐溫控制的特點,即只有升溫單向控制、滯后較大且具有參數時變性,利模糊推理合成法建立模糊模型並進行模糊控制器設計,為提高模糊控制的精,引入模糊變量k ,構成參數自調整模糊控制系統.該系統根據誤差和誤差變化在線自動調整控制器參數,使系統的得到改善
  13. After a simulated sample is given, we compute on this sample coupling analysis and steady non - linear analysis. by contrast with the experimental outcome of short circuit, we make certain that steady non - linear analysis should be used to analyze a true model. and then, we confirm the external conditions of finite element heat analysis after analyzing the cooling ways of multiple magnetic circuit transformers

    2 、論述了有限元分析的電磁場和溫場的理論基礎;製造出模擬樣機,分別耦合場分析法和非線性分析法對其進行計算,計算結果與其短路實驗結果進行對比,驗證了非線性分析法計算結果的信性;分析多磁路變壓器的冷卻方式,確定有限元熱分析的外部條件。
  14. We derive and prove some system reliability indexes such as reliability, instantaneous availability, steady - state availability, mut, mdt and so on for these three new models. some numerical examples are given to illustrate the results in the thesis

    本文對所建立的三個新模型的一些靠性指標,其中包括瞬時穩態可用度、平均停工時間、平均開工時間、忙時等,進行了推導與證明,並對結果進行了分析與數值演示。
  15. 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瞬解和解,得到了隊長平分佈的遞推公式:並進一步求得了系統的隊長分佈的母函數( 2 )討論了等待時間分佈,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,得到了: ( 5 )討論了內服務臺平均故障次數,求得了長期單位時間內的平均故障次數
  16. In the paper, the transmission power of section constituted by the assigned branch is seen as objective function, assigning the adjustable generators both in sending system and receiving system, assigning the faults set, including the constraint conditions such as the differences between the angles of rotor and the inertia center angel of the whole system, the thermal stability of branch and node voltage, obtaining the results by using interior - point solution and line - predominant jordan

    本文提出的考慮暫定約束的輸電能力演算法是以指定線路組成的斷面的傳輸功率為目標函數,指定送端系統和受端系統中參考調節的發電機,指定故障集情況下,以發電機轉子相對全系統慣性中心的角差、線路熱定、節點電壓等構成約束條件,採內點法和行主元約當逐行消去法求解問題的最優解。
  17. The dynamics behaviors of the flexible jeffcott rotor system supported by unsteady short dynamic bearing are investigated. based on nonlinear unsteady - state dynamic n - oil film force model described by three functions the local stability of the periodic solutions with the controlling parameters, rotational speed ratio, imbalance amount, damping ratio and viscidity, are predicted by using the floquet multiplier. it is found that the period doubling bifurcation is caused by a certain imbalance amount and the hopf bifurcation is created by the lost stability of the oil - film

    研究了非動載短軸承支撐的jeffcott柔性轉子系統的動力特性,基於三個函數表示動油膜的非非線性油膜力模型,將轉速比、不平衡量、阻尼比、粘作為控制參數,利floquet乘子預測周期解的局部定性,發現倍周期分叉是由一定量的不平衡引起的,而hopf分叉是由油膜失造成的。
  18. The non - renewable resources is introduced into the production function, this paper formulated the optimum decision - making model of social planer, used the stochastic analysis method, analyzed optimum decision - making which the social planer about the expense and the non - renewable resources utilize under the indefinite condition, and obtained the optimum storage quantity of capital demonstration way and the density of stability distribution, and give the policy meaning of the model

    摘要將不再生資源引入生產函數構建了一個社會計劃者的最優決策模型,運隨機分析方法,分析了不確定條件下社會計劃者關于消費和不再生資源利的最優決策,得到了最優資本存量的顯示路徑及分佈密,並給出了模型的政策含義。
  19. If the soil water content is gradually added from very little value, the value of water content gradient resulted from temperature gradient first is lower, then bigger and finally lower. based on the test data, a linear regression equation about temperature and water content is got. after deciding the temperature and moisture distribution of the soil samples, the problem of coupled thermal and moisture is discussed, the temperature distributions show that the heat - conducting coefficient is related to the density and water content

    由溫場的分佈以得到:在溫的作下,導熱系數是變化的,而導熱系數沿長方向的變化,使得場沿長方向成非線性分佈;密實對溫場分佈的影響是干密越大導熱系數越大;初始含水量對溫場分佈的影響是含水量增大,導熱系數也增大,達到最大值后,含水量增加導熱系數反而減少,含水量對溫場的分佈有顯著的影響。
  20. Steady - state availability

    穩態可用度
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