滯后系數 的英文怎麼說
中文拼音 [zhìhòuxìshǔ]
滯后系數
英文
hysteresis coefficient-
Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed
鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。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。The wastewater treatment system is one dynamic system of indeterminacy, time - variance, nonlinearity and posteriority. so it is difficult to create a precise mathematical model
城鎮污水處理系統是一個具有不確定性、時變性、非線性、滯后性的動態系統，難于建立起精確的數學模型。1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %
從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。Although the problems with the supply is one factor that effect the domestic demand, the excessive decentralization of social purchasing power has a great negative influence on domestic demand. early in 1998, the geni coefficiency had exceeded the security line of 0. 4, which indicated that there were serious inequity in income distribution
供給滯后雖說是影響內需的重要原因之一，但社會購買力的過渡分散也對啟動內需起了很大的負面作用，我國早在98年，表徵收入分配差距狀況的基尼系數就已經突破了0 . 4的警戒線。Abstract : it provides a kind of new nonlinear integrator and its mathematical model. its frequency responses is disscussed by the harmonics linearization method. its phase lag is found to be only 27. 6, all high order harmonics are very small, and it is very resistant to disturbances. by using it, an two - objective optimum control system is designed. it has very good control performances and will have good prospects in application
文摘:提出一種新型的非線性積分器，給出它的數學模型，並用諧波線性化原理討論它的頻率特性，其幅頻特性起積分作用，而相位滯后僅27 . 6 ，高次諧波分量小，抗干擾能力強.應用這種積分器設計了一個雙目標優化的二次優化系統.模擬結果表明，系統的控制性能好，具有廣泛的應用前景Regarding the hysteretic properties and time - varying of the system, the scan round performance of the controller, adopt incremental pid algorithm in constant - pressure controlling and combine it with the integral - separated dead - zone algorithm as appropriate for the situation of the measuring system and applies fuzzy self - tuning to control pid controller parameters
由於系統的滯后時變性和控制器的循環掃描工作方式，恆壓控制採用增量式pid控制演算法，結合測量系統實際情況加入積分分離帶死區改進演算法，並對pid參數進行模糊自整定控制，設計了一種參數自整定模糊pid控制器。Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。Based on the new bond index, the return comovemnet between stock and bond markets is analyzed. the empirical results show that the returns of stock and bond markets interacts in the long run, and there exists a leading and lag relation between them. the month correlation between the return of stock and bond markets is time - varying, which can be described and predicted with some models
根據所編制的國債指數，本文實證分析了股票市場與債券市場之間收益率的聯動關系，發現股票市場收益率與債券市場收益率之間存在長期影響，股票市場收益率與債券市場收益率之間存在領先滯后關系，股票市場與債券市場收益率之間的月度相關性是時序變化的，可以用模型進行描述與預測，並分析了影響這種聯動關系的宏觀經濟因素。Hysteresis loss coefficient
滯后損耗系數Manipulation of the pure time delay in digital control system applying pade approximation
近似式處理數字控制系統中的純滯后The mathematical model of diesel - generator set in the mechano - electronic transient process is proposed in this paper, the pulsation and delay of diesel torque are analyzed, the relation between diesel torque and diesel rotational speed together with injection pump rack bar displacement is described exactly. the motion law of diesel - generator set is revealed all - sidedly and nonlinear problem of diesel - generator set is settled by piecewise linearzation method
本文提出了柴油發電機組機電暫態過程的數學模型，分析了柴油機轉矩的脈動和滯后，準確地描述了柴油機輸出軸扭矩與柴油機轉速和噴油泵齒桿位移之間的關系，全面揭示了柴油發電機組的運動規律，利用分段線性化的方法解決了柴油發電機組的非線性問題。The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon
闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點，提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time
（ 2 ）採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗，通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析，闡明了時間變態引起上述各種水力參數偏離的主要物理原因：模型的槽蓄響應和洪水過程時間變化率的響應滯后。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，利用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度，引入模糊變量k ，構成參數自調整模糊控制系統.該系統可根據誤差和誤差變化在線自動調整控制器參數，使系統的穩態精度得到改善Simulated results indicate that it has such fascinating characteristics as one - order integral character, good stabilization to a large pure - lag system, and remembrance character, and its parameters is easy to be regulated
模擬研究與分析表明，其具有一階積分特性、對大滯后系統有良好的穩定能力、有記憶功能、參數調節容易等特性。We discussed the theory and engineering realization of dahlin algorithm which applied to the pure lag control system, the fuzzy logic control was paid more attention. a design method of the fuzzy - pid controller is presented here. this controller combines fuzzy control with pid control, performs the pid parameters self - tuning in the control system
具體討論了純滯后系統的大林演算法及工程實現方法，著重對模糊邏輯控制進行了較深入的討論，並提出了一種模糊pid控制器的設計，該控制器把模糊控制和pid控制有機地結合起來，實現對控制系統的參數自整定，而且還通過模擬對設計和改進的結果進行了分析。Fuzzy control does not require accurate plant model, but it can not be directly applied for time - delay system
模糊控制無需對象精確數學模型，但是直接應用於大滯后系統較為困難。Control for the system with pure time delay based on standard itae optimum function
標準函數的純滯后系統控制Then, the robust property of rcs is studied for a class of time - delay singular discrete systems with perturbations of delay parameter jump. the robust rcs delay - dependent conditions of these systems are provided in the form of lmi
然後，研究了一類具有時間滯后參數跳變擾動的時滯離散廣義系統的魯棒穩定性問題，以線性矩陣不等式的形式提出了時間滯后相關的魯棒rcs判據。分享友人