離散動態元件 的英文怎麼說

中文拼音 [lísǎndòngtàiyuánjiàn]
離散動態元件 英文
discrete dynamical elements
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 態 : 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
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 離散 : dispersed; scattered about; separated from one another; spread; debunching; straggling; fringing;...
  1. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  2. One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system

    第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。
  3. The dynamic model of induction motor under - reference frame is approximated by its associated discrete circuit model with the trapezoidal algorithm, after linearized using the neoton - rapson algorithm, the contribution of induction motor model to the circuit " s nodal equation matrix is calculated

    按照改進節點法的要求，異步電機採用-坐標系下的動態模型，使用梯形法求解微分方程，經過離散化和線性化，得出異步電機作為一個電路元件對電路矩陣方程的貢獻。
  4. The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance

    論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。
  5. According to the idea of the finished em - plant hiberarchy and dynamic model and the process characteristics and simulation aims of container terminals, the paper introduce the characteristics and modelling process of discrete event ; at the specification of em - plant, the paper show the modelling unit and programming function of em - plant detailedly. next, a computer simulation model of container terminal logistics system is made based on the software of em - plant and is validated by the data of an actual terminal. at last the model is used to analyze the present productivity of an actual container terminal and the bottleneck of its logistics system after the terminal is expanded, and provides the decision support for the terminal

    根據天津港集裝箱碼頭物流系統的層次模型和動態模型的思路，以天津港碼頭的數據為原型，根據天津港集裝箱碼頭生產作業的特點與模擬目標的要求，介紹了離散事件系統的特點和對離散系統模擬的步驟，在em - plant的主要特點說明中，詳細介紹了em - plant的建模單元和其編程功能，針對本模型的特點，說明了模型的結構和模擬目標，在保持模型主要特點和功能的前提下對模型進行了必要的抽象和簡化，然後藉助現代離散事件動態系統模擬語言em - piant ，建立了集裝箱碼頭物流系統的計算機模擬模型，並利用碼頭的實際營運數據驗證了模擬模型的可靠性。
  6. The existing condition of optimal controller in the discrete time system described by s operator is discussed in this paper, in which the method of dynamic programming is used

    採用動態規劃方法研究了delta運算元描述下的離散系統存在最優控制器的條件，得到了delta域內的riccati方程，設計了基於delta運算元描述下的離散系統的最優反饋控制器。
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