最低運行速度 的英文怎麼說
中文拼音 [zuìdīyùnhángsùdù]
最低運行速度
英文
minimum operating speed- 最 : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 行 : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 運行 : move; be in motion; run; working; machine run; operation; corotation; propulsion (影片)
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
-
This interpolation module uses the popular and advanced nurbs interpolation technology. the procedures of math processing for nurbs, preprocessing for interpolation and real - time interpolating running on dsp are presented in this article. the interpolating procedure uses an advanced self - adjusting interpolation method, which can automatically adjust the length of interpolation according to machining speed, acceleration and the tolerance of bow height
插補模塊則採用了當今最流行最先進的nurbs插補技術,設計了nurbs數學處理程序,插補預處理程序,運行於dsp的實時插補程序,該插補軟體採用了先進的自適應插補方法,可以根據加工的速度,加速度,弓高誤差的要求自適應調整插補步長,同時採用了對插補點的預估演算法,免去以往加工方法中求導的運算,大大降低了運算量,提高了加工速度。Escm is an effective and transparent chain that interpenetrate the suppliers, manufacturers and distributors. the enterprises on the chain act synergistically, and each can find its best cooperation corporation in the shortest time and win the market by the lowest cost, the fastest speed and the best quality. therefore a benign loop is set up. such chain breaks the old situation of the commission agent system and finds a solution of e - business
電子供應鏈這一新的經營與運作模式,是利用現代信息技術,建立一條貫穿供應商到製造商再到分銷商的信息透明、運作高效的」鏈」 ,鏈上的節點企業同步、協調運行,可以使企業在最短時間里尋找到最好的合作夥伴,用最低的成本、最快的速度、最好的質量贏得市場,鏈上的所有企業都能因此受益,從而產生良性循環。This dissertation focus on a innovation methods for inverter controlled hydraulic elevator system applying pressure accumulator as the " pressure - energy transformer ". the required power supply and running energy can be reduced remarkably when accumulators storing and releasing pressure oil. then the key items about hydraulic speed control system based on the ens 1 - 2 and other hydraulic elevator standards are investigated in detail
本論文主要研究了採用蓄能器-液壓泵馬達構成的「壓力-能量轉換裝置」來儲存釋放變頻驅動液壓電梯系統的能量,從而降低液壓電梯裝機功率和運行能耗的新方案;在此基礎上,根據國內外液壓電梯的標準進行了與速度控制相關的關鍵項目測試,最後針對本課題研製的節能控制系統與當前市場上幾種典型的液壓電梯控制系統進行了能耗對比研究。Through the loss model of lim, best efficiency control scheme is proposed based on the vector control, by which low efficiency of lim under light load or low speed is improved. the control scheme is proved effective through simulation under a specified speed - location curve
通過建立電機損耗模型,在矢量控制的基礎上設計了最優效率控制策略,解決了輕載或低速運行時的效率低下問題,通過指定速度位置曲線下的模擬分析驗證了控制策略的有效性。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。Secondly, choose the sample component, as different particle match of tungsten carbide and specifically heat treatment craftworks of solution and aging manufacture test piece, watch metallurgical structure of the test piece and do the tests of hardness and tension, at last do the abrasive wear test on the dynamic load abrasive wear test machine, analyze test datum, from the test data, conclusions are arrived that the hardnees of composite - alloy can be improved and wear - resistance be better by adding cr and other elements according to a given ratio
本文對rp中速磨煤機耐磨件進行了運行與磨損情況分析,研究、提出了制備磨輥和盤瓦復合合金成分配比;並對製作的試件進行了固溶、時效等特定的熱處理工藝,觀察試件金相組織,進行機械強度試驗,最後做磨料磨損試驗,對磨損失效機理進行了深入的研究分析,對其耐磨性能與低合金鋼、高鉻鑄鐵進行了對比。Strictly - controlled operating temperature, lower space velocity, atmospheric pressure and necessary pre - treatment of the feed oil containing much bnc would help lengthen the service cycle
在實際生產中,通過嚴格控制溫度變化,採用低空速及常壓,對含堿性氮化物較多的原料進行必要的預處理可以最大限度地延長催化劑運轉周期。Using the ipga and setting the terminal speed increment of the upper stage and the manufacture cost of cpkm as objective functions, the rocket motor are processed dual - objective optimization design that has six design parameters
採用ipga演算法,以該運載火箭上面級末速度增量最大及cpkm發動機的製造成本最低作為目標函數,對該發動機進行了雙目標優化設計。A practical example indicates that the design knowledge can be distilled, stored, inherited, multiplied and reused so that greatly reduces the repeated work of designer, and obviously improves speed and accuracy of parts designing
最後給出了運行實例,表明系統實現了設計知識的提取,存儲,繁衍,繼承和重用,大大降低了常用件設計工作的重復勞動,提高了零件設計速度和設計準確性。The three - tank control system is consisted by two kinds of controlment that are the liquid - level control and temperature control. different control had different character, so we use different control strategy. in order to gain good quality of water level, we use fuzzy control strategy. in order to control the temperature of tank t2 quickly and smoothly, we use fuzzy pid strategy. at last we draw a interface of man - to - machine using rsview32, from which we can monitor the process in industry
溫度控制採用模糊控制演算法,液位控制採用模糊pid控制演算法。最後用rsview32編制了一個人機界面,可以從此界面中監視生產過程的運行情況。三水箱計算機變頻控制系統採用變頻器進行電機調速后,耗費電能大大降低,同時由於控制策略選擇適當,系統運行比較平穩。Draw a conclusion : the social cost of wind power generation is lower ; third, the real cost of wind power generation are studied by model of wind distribution and generation amount and calculating the cost of wind power generation ; the factors affecting wind power generation cost are studied by sensitivities with a real example and draw a conclusion : average wind rate is most influence to wind power generation cost and the ways of reducing wind power generation cost are discussed. fourth, the trend of wind power generation cost is analysised and draw a conclusion : wind power generation cost is dropping ; this paper uses many qualitative and quantitative methods and uses a real example to study wind power generation cost and advanced some ways solving high wind power generation cost
得出;平均風速的變動,對風電成本影響最大;同時分析了減低風電成本的途徑; 4本文從三個方面對我國風電成本的走勢進行了分析,得出風電成本在未來的發展趨勢是逐漸下降的;本文運用了定性、定量方法,以實例為原則,首次比較全面地從社會總成本角度對風電成本進行研究,同時對影響風力發電的因素進行了比較深入的研究,提出了解決風力發電發展中存在問題的方法。Later on, after elaborating the disadvantages of the old methods in detecting and recognizing moving objects, a series of corresponding approaches are proposed, such as grid scan, local tracking bug and dynamic window in object tracing to reduce the huge data needed to be processed, maximum and minimum for selecting a proper segmentation threshold and improved conversion from rgb model to hsv and so on to decrease the influence of inhomogeneous lighting and the color noise, a bilinear interpolation in each quadrant to eliminate the bad effect on the recognition precise because of the distortions of the camera. after that, much emphasis is given on application study in pattern recognition with a feed - forward neural network. both the basic bp algorithm and improved bp algorithm in the study process are described in detail, and the later is used to quicken convergence speed and improve validity of the network
然後,分析和闡明了傳統的運動目標檢測方法的不足,並在此基礎上結合研究中的實際實驗環境,提出了一系列解決方法,包括針對降低龐大數據量而提出的網格掃描、局部「跟蟲」追蹤和動態窗口掃描等目標檢測方法,針對實驗環境中光照不均和顏色干擾提出基於人機交互的最大最小值閾值選取方法和引入改進的rgb模型到hsv模型的轉換方法,為消除圖像畸變對識別精度的惡劣影響而採用的通過控制點進行雙線性插值進行畸變校正的方法;緊接著,概述了神經網路的發展歷史和幾種常用神經網路模型的特點,重點研究了前饋型神經網路在模式識別中的應用問題,詳細闡述了基本的bp演算法和學習過程中bp演算法的改進,從而使網路收斂速度更快,解決問題更有效,並在此基礎上,設計了一個基於bp神經網路的運動目標識別系統,給出了實驗結果。One of the most promising new technologies to help achieve that goal is a new breed of low - powered microproce ors that can vary the eeds at which they operate
有助於達到這一目標的最有希望的新技術之一就是製造新型的低功率微處理器,該處理器在運行中可以改變速度。At the same time, a series of development trend in organization structure innovation under the information environment has been put forward : flat model is the basis of organization structure optimization ; flexibility not only is beneficial to organization creation, innovation and accelerating reaction speed, but also strengthens organization ' s control centripetal force during the process of being operated continuously. it has rapid adjusting ability in time according to unexpected results of predictable change ; networking can not only decrease internal management cost and realize integration between supply chain and sale chain in worldwide, but also realize enterprise " s completely authorized managemen in order to promote substantial leap in enterprise economic benefit ; virtual model is centralizing limited resources on high additional value function and making low additional value virtual in order that the largest resource support can be obtained in the lowest cost and the whole organization is operated in the most effective way for adapting to market " s rapid change with high elasticity ; creating learning pattern in organization makes enterprise expand the width and depth of information being exchanged with the outer so as to keep enterprise in an unassailable position
提出信息化環境下組織結構創新的一系列發展趨勢:扁平化是組織結構優化的基礎;柔性化既有利於組織的創造、革新、加快反應速度,又能使組織在不斷磨合中加強控制的向心力,具有適時根據可預期的變化的意外結果迅速調整的能力;網路化不僅減少了內部管理成本、實現了企業全世界范圍內供應鏈與銷售環節的整合,而且實現了企業充分授權式的管理,極大地促進了企業經濟效益,實現質的飛躍;虛擬化是將有限的資源集中在附加值高的功能上,而將附加值低的功能虛擬化,以最小的代價獲得最大的資源支持,從而使整個組織以最有效的方式運轉,以高彈性化來適應市場的快速變化;創建學習型組織,使企業拓展了與外界進行信息交流的廣度和深度,使企業立於不敗之地。Once collision accident occurred when the train is moving with fairly high speed, the energy - absorbing structure produces large plastic deformation along the direction needed to absorb sufficient energy, at the same time, the deceleration must be controlled within the endurable limits to human body
當列車在正常運行時,車體有足夠的強度和剛度,需要滿足有關規范規定的強度、剛度要求;在較高速下發生碰撞事故時,吸能結構能夠沿所需方向產生塑性大變形吸收足夠沖擊動能,保證機器間和乘客區不發生破壞,並延緩碰撞作用時間,降低碰撞瞬間最大減速度,使撞擊減速度在人體承受范圍內。Compared with the results of the other objective functions such as minimum input joint torques and minimum input joint angular velocity, the power consumption can be decreased and the kinematical and dynamical performances will be better by dynamic programming when taking the minimum joint input power as the objective function
與採用輸入關節力矩最小和輸入關節速度最小為目標時的動力規劃結果相比,以關節輸入功率最小為規劃目標進行動力規劃時,可降低系統的能耗,同時系統的運動學和動力學特性較好。分享友人