滑動負數 的英文怎麼說

中文拼音 [gǔdòngfùshǔ]
滑動負數 英文
sliding load
  • 滑 : Ⅰ形容詞1 （光滑; 滑溜） slippery; smooth 2 （油滑; 狡詐） cunning; crafty; slippery Ⅱ動詞（貼著物...
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 滑動 : slither; slippage; slipping; slide; sliding; run; sliding movement [motion]; glide; slump滑動閘門...
  • 負數 : negative number; negative; minus
  1. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  2. Influence of preload factor on the stability of three - lobe journal bearing

    預負荷系數對三油楔徑向滑動軸承穩定性的影響
  3. On the base of model, considering the disturbance from the other 5 legs and variating load, we design an h - inf controller integrated with ip controller, which makes the system with the advantage of both h - inf control and ip control, and restrains the bad effect from variating disturbance. the simulation shows that this stradgy enhances the system robustness. in another solution, the coupling and load disturbances are regarded as the parameter variations of motor model, and the variation is observed, thus, the coupled dynamics of vamt is decoupled to 6 single motor systems

    在建立了模型的基礎上，本文針對單滑塊控制系統要受到其它滑塊及負載擾動的影響，採用h _控制方法設計的h _控制器與傳統ip位置控制器結合，使得系統具有ip位置控制器和h _控制的雙重優勢，有效地抑制了變化擾動對位置輸出的影響，模擬結果表明該方法大大提高了系統的魯棒性；本文提出的另一種方案是將桿間的耦合作用和負載擾動看作電機參數變化，利用觀測器進行觀測，從而將耦合的機床動力學系統解耦成為6個獨立的電機動力學系統。
  4. Table 2 : the loading p, abrasion linear velocity v, pv value and abrasion coefficient of some materials

    表2幾種材料的負載p滑動磨擦線速度v pv值和摩擦系數
  5. Detga - a sereies of bearing and circulating oils. manufactured from high viscosity index paraffinic base oils, prssessing excellent natural demulsificationnproperties. effective additives further enhance oxidation stability. recommended for applications where the extra load carrying characteristics are not required. suitable for lubrication of machine guides, bearings and spindies, aie line lubrication of maching tools, ring liled and wick feed bearings, and light duty gear and hydraulic systems

    德佳-一系列軸承及循環系統油，由高粘度指數石蠟烴基礎油製造，具有極佳之天然抗乳化性，有效的添加劑提高了抗氧化性能，特別推薦于輕度負荷的操作，可應用在機床導件、軸承、錠子、氣動件潤滑、油環及油繩潤滑軸承等，甚至是輕負荷及液壓系統。
  6. Based on the further study of dynamic characteristic of the tractor - implement combination, according to the integrated control model, which including the flowing three parameters : the engine load rate, drive wheel slip and work resistance, and the three control strategies, which are : highest production efficiency control strategy, oil consume economic control strategy and give attention to the above control strategy, we can adopt different control strategies according to different purpose of the task. applying the theory of the hybrid dynamic system to this case, the three control strategies can be abstracted to three discrete matters, and then the exchange model of the discrete matters of the top layer ( which called manage layer ) of the tractor - implement combination and the function decision model, which based on the nerve network, can be established. through this way, the best ad aptive controlling of the tractor came true

    本文研究了拖拉機機組的綜合控制問題及其最佳匹配方法，在深入研究機組動態特性的基礎上，根據發動機負荷率、驅動輪滑轉率和作業阻力三參數的綜合綜合控制模型以及三種綜合控制策略（最高生產效率的控制策略、燃油經濟性的控制策略和兼顧最高生產效率及燃油經濟性的控制策略） ，針對不同的作業目的，採用不同的控制策略，應用混雜動態系統理論，把三種控制策略抽象為三種離散事件，建立了拖拉機機組上層（管理層）離散事件切換模型，並建立了基於神經網路的功能決策層模型，從而實現了拖拉機機組的整機最優控制。
  7. On the base of thoroughly studying dynamic characteristic of tractor - implement combination, a control project of three parameters was put forward in the paper. the three parameters were engine load rate, drive wheel slip and work resistance. an integrated control model based on three parameters was established, which reflects colligated dynamic character of the unit

    拖拉機作業機組中，很多參數存在著耦合作用，給綜合控制帶來一定的難度，本文在深入研究機組動態特性的基礎上，提出了發動機負荷率、驅動輪滑轉率和作業阻力三參數的綜合控制方案，它反映了機組的綜合動態特徵，並建立了基於這三參數的綜合控制模型。
  8. During unit startup and load is lower than 15 %, drum level is controlled by feedwater control valve, feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 %, feedwater control valve is closing at fixed speed determined by function module, main motor - operated - valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 %, control valve is closed fully, and main motor - operated - valve is open fully, drum level is controlled by one pump ; when load is more than 50 %, first pump is kept in operation, second pump is putting into operation automatically and

    在機組啟動、沖轉及機組並網至15 %負荷階段，給水泵維持在最低安全轉速下運行，汽包水位由低負荷給水調節閥自動控制; 15 %至25 %負荷階段，給水調節閥由函數模塊按照一定的速率自動平滑關閉，主給水電動門自動打開，汽包水位控制方式自動無擾切換為給水泵自動控制;負荷在25 %至50 %階段時，給水調節閥已完全關閉，主給水電動門已完全打開，水位控制已全由單臺給水泵承擔;負荷大於50 %后，在第一臺給水泵運行的同時，第二臺給水泵自動無擾投入。
  9. For the image with random field feature, the description language is probability distribution model, and the description length equals the negative base - two logarithm of the probability of the image data ; for the region homogeneity properties of active contour, the description language is chosen as a sign gradient map, and the description length is the summation of sign gradient inside the active contour ; for the active contour regularity, the description language is smoothness, and the corresponding description length is the length of active contour curve

    隨機場圖像的描述語言採用概率分佈模型，描述長度是圍道內外區域中圖像數據概率的以2為底對數的負數；活動圍道區域一致性的描述語言為有符號的梯度圖，描述長度是圍道內區域有符號梯度的總和；圍道形態的描述語言採用平滑性，描述長度正比于圍道的長度。
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