滯后特性 的英文怎麼說

中文拼音 [zhìhòutèxìng]
滯后特性 英文
hysteresis characteristic
  • 滯 : Ⅰ動詞（使停滯; 使不流通） stagnate; block up Ⅱ形容詞（停滯; 不流通） sluggish; slow-moving; stagnant
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. First this paper describes the composing and technics of drillers ; then the composing of control system based on s7 - 300plc is described ; then thinking of such characteristics of oil driller as complexity and long delay, this paper brings forward the control strategy of combining the fuzzy control with smith estimate control algorithm, and sets down the way of auto - driller based on discal hydraulic pressure brake. at last the experiment based on matlab by computer shows that the effect of this control mode is very good and all performance are famous

    首先本文闡述了鉆機的組成與工藝特點，然後描述了基於西門子s7 - 300plc的控制系統組成，然後針對傳統鉆機自動送鉆控制策略落後的缺陷，同時考慮到鉆機的復雜性、大滯后等特點，提出了模糊控制演算法與施密斯（ smith ）預估控制演算法相結合的控制策略，給出了基於液壓盤式剎車的自動送鉆智能控制策略， matlab的模擬實驗證明該控制方式控制效果良好，各方面性能指標都達到理想要求。
  2. Nonlinear elastic hysteric characteristics of rocks

    巖石的非線性彈性滯后特徵
  3. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。
  4. The lcf behavior of a recrystallized zircaloy - 4 plate at room temperature and 400 show that alloy has better lcf property at rt than at 400, and cyclic hardening at 400 which could be attributed to the dynamic strain aging effects. it is noticeable that the hydrided plate has the same cyclic behavior as the above unhydrided sample at room temperature

    在400下，合金錶現出與常溫下不同的循環特性，其循環穩定滯后回線出現鋸齒狀波形，且在整個疲勞過摘要程中呈現出一致循環硬化的現象，這主要是因為合金在400下發生動態應變時效效應的結果。
  5. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。
  6. Abstract : a detailed analysis is made of the errors made by the system trace, of the mutual relation between trace error and contour error and of the effect on accuracy produced by contour machining, and some computation formulas have been worked out

    文摘:從進給伺服系統動態響應、滯后特性角度，較詳細地分析了跟隨誤差產生的原因，跟隨誤差與輪廊誤差之間的相互關系和對輪廊加工產生的精度影響，並給出了具體的計算公式。
  7. To plants with big time delay, the neuron pid control method with fuzzy - tuning gain is proposed. being used to control the water temperature process, the simulation tests results prove the validity of the proposed method

    針對具有不確定性的大純滯后對象，提出了增益模糊自整定神經元pid控制方法，並以具有大純滯后特性的水溫調節過程為背景，進行了模擬實驗，模擬結果證明了該方法的有效性。
  8. There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively

    現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。
  9. Random seismic responses of civil engineering structure are calculated by employing stochastic vibration equations and moment equations methods of nonlinear structures established and stochastic equivalent linearization. in this procedure of calculation, differential expression of hysteretic characteristics and seismic excitation are taken into consideration

    通過已建立的非線性結構物隨機振動方程，納入滯后特性微分表達式，利用隨機等效線性化法和矩方程法，計算了工程結構物的隨機地震反應。
  10. The control object that characterize the phase lag resemble resistance furnace adopt intelligent pid control. the control parameter is self - tuning, not artificially tune off line. furthermore, it heightens the automatization degree of system and the control precision

    針對電阻爐這樣的具有滯后特性的控制對象採用了智能pid控制器， pid的控制器的參數由系統自整定，而不是離線後由人工整定，提高了系統的自動化程度，而且控制精度也有很大的提高。
  11. On the other hand, because of transmission process, large - lag links and complicated on - line analyzer etc, a large number of industrial processes ( in metal engineering, chemical engineering systems, biomedical systems and so on ) can be modeled as time - delay systems. the stability and performance are always dominated by delay phenomena, so the study of delay systems always attracts considerable atten tion in the control theory literature

    另一方面，在實際的工業過程中，大慣性環節、傳輸過程、復雜的在線分析儀等不可避免地會導致滯后現象，而這些滯后特性往往會嚴重影響控制系統的穩定性以及系統的性能指標，因此時滯系統的研究同樣具有重要的理論和實際工程意義，而且歷來是控制理論研究的熱點之一。
  12. The lyapunov theorem and lasalle invariance principle are applied to optimization sub - problem in augmented lagrange multiplier method

    參數不確定性和滯后特性在實際工業過程中廣泛存在。
  13. Moreover, large - lag links, transmission process and complicated on - line analyzer etc, are common in the number of industrial processes, which can cause delay in the systems. such delays will be a main cause of bad performance or even instability for control systems

    而且，由於大慣性環節、傳輸過程以及復雜的在線分析儀等不可避免地會導致滯后現象的產生，這些滯后特性往往會嚴重影響控制系統的穩定性以及系統的性能指標。
  14. For example, petroleum chemical engineering systems and metallurgy systems can be modeled as time - delay systems for their content lag and transmission delay. in addition to these, because of transmission process, large - lag links and complicated on - line analyzer etc, a large number of industrial processes ( in metal engineering, chemical engineering systems, biomedical systems and so on ) can be modeled as time - delay systems

    基本上是不可避免的，大慣性環節、傳輸過程、復雜的在線分析儀、石油化工和冶金工業過程中的容量滯后和傳輸延時等不可避免地會導致滯后現象，而這些滯后特性往往會嚴重影響控制系統的穩定性以及系統的性能指標，甚至使系統不穩定性。
  15. On the other hand, large - lag links, transmission process and complicated on - line analyzer etc, are common in a number of industrial processes, which can cause delay in the systems. such delays will be a main cause of bad performance or even instability for control systems. so, the research on the time delay systems attracts considerable attention in the control theory literature all alone

    另一方面，在實際工業生產中，大慣性環節、傳輸過程以及復雜的在線分析儀等不可避免地會導致滯后現象的產生，這些滯后特性往往會嚴重影響控制系統的穩定性以及系統的性能指標，因此對時滯系統地研究也一直是控制理論研究的熱點之一。
  16. Under strongly random exterior excitation, most structures will undergo elastic - plastic stage and show hysteretic characteristics, the vibration of structure expresses nonlinear random feature. therefore nonlinear model must be utilized in order to describe the behavior of this kind of structure, also the theory and methodologies of nonlinear random vibration are necessary for analyzing their response

    許多工程結構在強烈隨機外激勵下都將進入彈塑性變形狀態，表現出滯后特性，結構的振動表現為非線性隨機振動，因此必須用非線性模型來描述結構，並用非線性隨機振動的理論和方法來進行分析。
  17. Automobile - break - plateform and frame test system is a complex system with great inertia and delay as well as the uncertainty of inner controlled objects " kinetics characteristics and disturbance of environment. it is a thorny problem to control this kind of system efficiently. on account of the difficulty constructing an accurate mathematics model, hisc is an effective way to solve the controlling problem of this kind of system

    汽車制動器臺架試驗系統是一個大型復雜系統，具有大慣性及滯后特性以及控制系統中被控對象動力學特性的內部不確定性和外部環境擾動的不確定性等特點，由於難于建立精確的數學模型，所以對這類系統進行有效控制是一大難題。
  18. Systems stability and performance are always influenced badly by lag

    而滯后特性往往會嚴重影響到控制系統的性能指標甚至使系統不穩定性。
  19. The research works are mainly concerned with the following aspects : firstly, the differential expression of bilinear hysteretic is studied and a new differential expression is developed, then they are demonstrated

    作者主要完成了以下四個方面的工作。首先，對雙線形滯后特性的微分表達式進行了研究，提出了一種新的微分表達式，並給出了證明。
  20. Based on the characteristic of the coupling objects it optimizes the decouple parameters, and the simulation result proves that the decoupling optimized algorithm compensates the hydraulic system lag, achieves the best collection efficiency, and enhances the stability of walking

    並根據耦合對象的特性，進行去耦優化，模擬結果表明該去搞優化演算法能補償液壓系統滯后特性，獨立進行集擴頭高度最優調節，達到最佳集礦效率，提高行走穩定性。
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