擬穩態 的英文怎麼說

中文拼音 [wěntài]
擬穩態 英文
quasistability
  • : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
  • : 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. Finally, the controller working based on the combination of rbf neural networks and traditional pid control was applied to in aclinic kinetic machinery and lifting machinery of tower crane. the simulation of this controller was made using matlab, and the simulation results showed that the control system has some merits, such as quick response, little overshoot, well anti - jamming capacity, and little steady - state error, etc. both the dynamic property and static characteristic of this controller are better than traditional pid controller, and meet the tower crane

    應用matlab對塔機的變幅和起升機構的運動控制進行模,模結果表明基於rbf神經網路整定pid的控制系統具有響應快、超調小及誤差小等優點,其動、靜性能優于單一pid控制,從而提高了塔式起重機工作機構的工作性能。
  2. Steady-state heat flow is comparable to the flow of an incompressible fluid.

    熱流和不可壓縮流體的流動可相比
  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,運用質量守恆、能量守恆和動量守恆方程建立適合動的蒸發器數學模型,為系統模奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動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,運用動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計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動
  4. The thesis focuses on the development of the dynamic simulation model of evaporators, the accomplishment of the stable and dynamic simulation of the parameters of cryogen - side, air - side and how to carry out dynamic simulation on the refrigerating effect of evaporators under different evaporating temperature and the realization of the analyses and calculations of the main parameters, such as, the wind speed of air - side and specific humidity etc, which affect the function of evaporators

    本文重點是對蒸發器建立動模型,並對製冷劑側和空氣側參數進行和動,同時對蒸發器在不同蒸發溫度下的製冷量進行了動,而且對影響蒸發器性能的主要參數(空氣側入口風速、入口含濕量等)進行了分析和計算。
  5. In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system

    其次,通過對整個系統諧振頻率變化的分析和研究,設計了以鎖相環cd4046為核心的鎖相環控制電路,同時,在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上,進行了系統模,得出採用復合控制可使跟蹤電路既具有鎖相環路較好的性能,又擁有模糊控制較好的動性能,系統魯棒性能好,同時也提高了逆變器的效率。
  6. Study on the steady analysis model of variable displacement hydraulic pump

    變量液壓泵模型
  7. Compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism

    主要有以下幾個部分: 1建立了兩相混和式電動機的數學模型,分析了超前角對相電流及機械特性的影響,並同時進行了模研究,給出了一些有意義的結論。
  8. The laser radar sub - system determines the heights of the tsp according to the slant height and the oblique angle measured by the laser range finder and the electronic theodolite simultaneously. by lucubrating the motion law of tsp, we decided to compute decent velocities with least - squares procedure & two ranks curve fitting

    地面激光雷達跟蹤測量分系統根據測量到的斜距離和俯仰角確定末敏彈傘彈系統的高度,在深入研究末敏彈掃描過程的運動規律后,通過最小二乘法的二階分段曲線合,計算出落速。
  9. This paper also tested each model and system - the second loop of qinshan nuclear power station ( the second term ) , computed the balance point , tested the performance of step disturbance and runback loads for system ( no adding adjustment system ) , analyzing the factors effecting the first tiptop rotate speed of turb and time which the rotate speed reach the tiptop

    在模模型上,完成了計算、系統階躍擾動試驗、甩負荷試驗(未加調節系統)等測試,主要監控和分析了汽輪機動特性中兩個重要參數:汽輪機第一飛升轉速、飛升時間。
  10. This text studies three methods about analyzing steady stat cornering performance of tractor - semitrailer : the differentiating of linear system steady stat cornering performance, the computer simulating analyzing of nonlinear system steady stat cornering performance, and the method of energy phase plane

    摘要為了分析半掛汽車的轉向特性,研究了3種用於判別半掛汽車列車轉向特性的方法:線性系統轉向特性的判別、非線性系統轉向特性的計算機模分析、能量相平面法。
  11. The heat coefficient changing of the heater and reheat ; c. the leakage test of the working substance ; d. the damage test for the heat pipes of the radiator, were taken

    分析了參數,完成了:吸熱器熱負荷擾動試驗、吸熱器及回熱器換熱系數變化試驗、工質泄漏試驗、輻射器熱管損壞試驗等多個模實驗。
  12. For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented. this method adjusts power electronic switch in order to achieve anticipated balance volt, finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision. series - wound aplc adopted this control method possesses good dynamic and steady state performance

    針對串聯型有源電網調節器運用變結構控制策略,調節電力電子開關模式,以獲得預期的平衡電壓,對串聯型有源電網調節器提出了模糊積分變結構控制方法,使串聯型有源電網調節器既保持了常規滑模控制強魯棒性的優點,又減弱了滑模控制的抖振,提高了系統的精度,使系統具有良好的動和靜性能,模試驗表明該控制策略是一種十分有效的控制方法。
  13. 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值模,空間科學學報,第21卷,第4期, ( 2001 ) 305 - - 310 。
  14. The steady state saturation and transient state saturation of the current transformer are theoretically analyzed and simutated under different burder at secondary side

    針對二次側不同的負載,對電流互感器的飽和與暫飽和做出理論分析和模
  15. 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值時就以速度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的最優取值問題,並利用mathematic軟體對費用函數進行了數值模
  16. Second, based on the characteristic of the receiving water studied in this paper, develope a dynamic one - dimension water quality model for nanbei river in zhangcha town of foshan city, and develope a program of water quality model based fortran powerstation. and then, calculate the concentration of codcr in receiving water using the simulation results of swmm and analyze the effect on the environment of receiving water by intercepting ratio. at last, the construction investment and operational and administrative expenses of intercepting trunk sewer 、 pumping station and sewage farm is calculated and the relation between them is discussed

    其次,本文根據研究區受納水體的特點,建立了佛山市張槎鎮南北大涌的一維非水質模型,相應地開發了基於fortranpowerstation平臺的水質模型計算程序,並在swmm模型模結果的基礎上,利用本文編制的水質模型程序計算了不同截流倍數時南北大涌codcr濃度的時空變化過程,分析了截流倍數對河涌水環境質量的影響。
  17. In order to improve the utilization efficiency of energy and equipment, a general steady simulation model of complex cross - feed multi - effect evaporation was established for the purpose of in - depth research on rule of multi - effect evaporation. in this model, the energy - saving measures, including extra steam being led off to preheat material liquid, the condensation water flash and solution flash, were adopted, and the solid separation was also considered in the process of evaporation

    為了提高多效蒸發系統能量與設備的利用效率以及深入研究多效蒸發過程的規律,建立了帶有冷凝水閃蒸、溶液閃蒸和引出額外蒸汽預熱原料液等節能措施並考慮蒸發過程有固相析出的復雜錯流多效蒸發通用模型。
  18. 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、模軟體,針對實際電路給出了整個設計和模全過程,通過實驗驗證了該軟體所得到的精確解、瞬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。
  19. 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值模,得到了電荷密度擾動與電場的變化情況。
  20. The pseudosteady state flow problem of coalbed gas in deformed media with double porosity

    變形雙重介質煤層氣擬穩態滲流問題
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