轉速定點 的英文怎麼說

中文拼音 [zhuǎnsùdìngdiǎn]
轉速定點 英文
speed setpoint
  • 轉 : 轉構詞成分。
  • 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...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 轉速 : speed; revolution; rotation rate; speed of revolution; rotating speed; rotational speed轉速指示器...
  1. First we calibrate the accelerometers on dividing head to get the offset and sensitivity, then do the rotation experiments on centrifugal machine and rotating floor

    首先在分度頭上標定加速度計，得到其零點和靈敏度，然後分別在離心機和轉臺上進行轉速實驗。
  2. At first, in the process of experiments, it were measured that dry plate pressures drop and point pressures in the flow fields around the single fixed - valve and double fixed - valves under different velocities by using of pitot tube. after that point pressure was transformed to point velocity, two dimensions flow plane of flow fields around fixed - valve were plotted to observe the difference between of the fixed - valve tray with fold edges and the common rectangular fixed - valve tray on the distributions of flow fields and pressures, to provide comparisons and refer - rence for cfd simulation

    在實驗中，利用測速管等儀器對在不同速度下的單閥和雙閥固定閥周圍的流場進行了點壓力測量，然後把點壓力轉化為點速度后繪出固定閥周圍流場的二維流線圖，同時測定了塔板的干板壓降，來考察新型固定閥帶折邊后對流場分佈和壓降的影響，為隨后的數值模擬提供對比和依據。
  3. By analysing the relationship among the parameters such as substrate, speed, tension, rotational speed, shape distortion of paper etc, this article put forward a control law to control the drive transmission roller in emery cloth and sand paper production line, the principle is based on hooke ' s law

    摘要本文根據彈性力學中的虎克定律，結合砂布砂紙生產特點，分析計算了生產線中基體、應變、速度、張力、轉速等參數之間的關系，建立了砂布砂紙生產線中傳動輥轉速（頻率）運動方程。
  4. The magnetic suspension bearingless motors generate both electromagnetic torque and magnetic levitation forces for the rotor suspension by the motor itself. the bearingless motor is comparatively suited for using as artificial heart blood pump motor due to the advantages of without mechanical wear and noise, structure compact and contactless

    磁懸浮無軸承電機定、轉子既用於產生驅動力矩，同時又用於產生支撐轉子的磁懸浮力，具有無機械磨損、噪音小、可高轉速和體積小等特點，比較適用於人工心臟血泵電機。
  5. In pumping fluid with gas, pressure boost can be improved by enhancing the pump rotation speed, thereby improving the performance of the pump to a certain degree ; when the gas content is constant, by increasing the inlet pressure, the pressure boost can be enhanced and the pump efficiency be improved remarkably ; when the gas content is rather high, there will be a problem of matching between the gas pressure and the fluid pressure ; the performance of the multiphase pump can also be improved by means of rational design of buffer vessel and homogenizer

    試驗分析認為，氣液混輸工況下，提高泵轉速可以提高增壓，在一定程度上能改善多相泵的工作性能；含氣率一定時，增加進口壓力，可使多相泵增壓值增大，泵效明顯增加，最大含氣率點后移，但含氣率很高時，存在氣液壓力相匹配問題；改進緩沖罐和均化器的設計，有利於氣液互相夾帶，避免氣囊產生，可改善多相泵的輸送性能。
  6. This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application

    針對目前對緩釋肥料釋放特性的研究集中在化工製作領域這一現狀，採用不同的測定方法，闡明含硫尿素中的養分氮在水及土壤中的轉化特點，確定養分的釋放速率，以求找出適合農業生產應用的方法。
  7. The exhaust emission of a diesel engine differs in different operating condition. in order to study the fuel - economy and exhaust emission performance of vehicle turbocharge - intercooled diesel engine on all steady operating conditions, on yc4112zlq d. i. turbocharge - intercooled diesel engine, 72 operating conditions ( 8 speeds, 9 loads per speed ) were tested under steady operating condition

    為了在整個工況范圍內研究車用增壓中冷柴油機的經濟性與排放性能，作者在柴油機穩定運轉狀態下，對yc4112z _ lq （ 125kw 2300r min ）型直噴式增壓中冷柴油機的72個工況點（ 8個轉速，每個轉速9個負荷點）作排放特性試驗研究。
  8. In this experiment, adjusting the throttle to the specific position, and letting engine rotary speed change from the lowest to the highest, at the same time, the data of the water temperature, the fuel temperature, the air press and the rotary speed can be noted. moreover, we can measure the fuel quantity and the ignition angle

    實驗中，調節節氣門在特定位置，並讓發動機的速度依次從最低變化到最高，同時記錄水溫、油溫、進氣壓力和轉速等數據，還可以測出相應的噴油量、點火提前角。
  9. Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility. the constructional effort required for a hydrodynamic screw is small compared to that required for a turbine. if the compact version of a hydrodynamic screw hydrodynamic screw trough power take - off unit combined as a single unit is used, the constructional effort can be further reduced

    水力螺旋機技術的優點有：無需監控系統，可自行調節水體供給和供給頻率運行效率高於水輪機和小型渦輪機效率梯度平穩轉速低20rpm - 80rpm ，運行穩定防磨損無需定期清潔，易維護對河道湖泊里的魚蝦無損害基礎工事少，安裝簡便無堵塞，無需隔欄裝置能量利用充分等。
  10. The sampling rate of the system can reach 3704 sps, and the crank angle is 1. 94 degree per sampling point corresponding to the crank speed of 1200r / min. in the mean time, the position signal of the piston could be collected by photo - electricity switch

    本研究首先設計和實現了摩擦力採集電子電路系統，裝置最大采樣率可達到3704sps ，在曲軸轉速為1200r / min時，對應曲柄轉角1 . 94度采樣點，並且可以採集用來確定活塞位置的光電開關的信號。
  11. Based on the analysis of the kinetic track of the scallion during planting, basic relationships ' among the characteristic parameters of the transplanter with two flexible metal disks, including the velocity of the transplanter, the rate of transplanting, the spacing between seedlings, the angle of releasing seedlings, the diameter and length of seedlings, have been set up in this paper, and then a mathematic model of optimum design for the transplanter with the final planting angle of seedlings ( y = 90 ) has been formulated and solved with good results. according to the optimum solutions, a new type of transplanter with two flexible metal disks has been developed and the field tests of the transplanter have been conducted

    為了實現大蔥機械化移栽，作者分析了國內各種移栽機的結構特點，確定了以撓性圓盤式栽植器為研究對象，在分析撓性圓盤式栽植器的運動軌跡和特徵參數的基礎上，完整地確立了撓性圓盤式移栽機的基本參數：栽植頻率、栽植株距、機組前進速度、輸送帶上秧槽的間距、撓性圓盤半徑、撓性圓盤的轉速、夾苗株數以及傳動比之間的相互關系，並建立了以蔥苗栽植傾角= 90為目標的優化設計數學模型，提出了撓性圓盤式大蔥移栽機的優化設計方法。
  12. Model xjq has following features ： （ 1 ） dummy bottom is adopted, making the recycling capacity of the recycling cylinder is 2. 5times of the tand. ( 2 ) the stator is a cylinder in structure with its inner wall being vertically ribbed, and slots are placed, leading to better cutting lffect to the slurry. ( 3 ) due to low immerging depth of the rotator, low rurning speed of the impeller, and wide space between the impeller and stator, wearing is low and power consumption greatly reduced. ( 4 ) it is spontaneously aerated

    Xjq型浮選機為仿維姆科型，該機主要有以下幾個特點： （ 1 ）採用了假底，循環簡可使循環量達到槽容積的2 . 5倍; （ 2 ）定子結構為圓筒型，內壁設有立筋條和長孔，對礦漿的前切作用好; （ 3 ）轉子浸沒深度淺，葉輪轉速低，葉輪和定子間隙大，所以其磨損輕，動力消耗大大減少; （ 4 ）可自吸空氣。
  13. Compare to other kindred products, besides adjustment of speed, the new calibrater can adjust teeth number and voltage of fanout. the new calibrater can also output a pulse one cycle which simulate cylinder top dead center

    這種標定器與國內外同類產品相比，除了轉速可變外，還有一些創新之處：齒數可調、輸出幅值可調、同時可以輸出每周一個的上死點參考信號。
  14. In this dissertation, i demonstrate a new designation scheme of its electric - controlling system based on the domestic products of this kind. i used dc servomotor and the pwm motor - timing scheme to control the rotational speed of the motor in order to improve the performance of the microinjection instrument and control the injection amount precisely

    本文在國內現有產品的基礎上，針對上述缺點，提出一種新的電控系統設計方案，即選用直流伺服電機並採用pwm電機調速方案進行電機轉速控制，以提高醫用輸液採的工作性能，實現注射量的精確和穩定控制。
  15. The timing - and - quantitation precision injection of lpg was realized with high - speed lpg solenoid valve and a set of electronic control system, which was designed by the author and can flexibly control the gas supply system of lpg. based on the analysis of experimental data got by comparing the performances before and after the application of the set of equipment on lr6105q12 diesel engine, the effects of load, speed and replace ratio, etc on the emissions of smoke, hc and co of dual fuel engine were expounded. through optimization, the smoke emission was utmostly reduced and the emissions of hc and co were within the government restriction

    為此，本文通過對各個方案進行詳細比較，選擇了電控多點順序噴射的供氣方案；利用高速lpg噴射閥和自己獨立開發出一套電子控制系統對lpg供氣進行靈活地控制，實現了lpg的定時定量噴射，並把這套裝置應用到中國一拖生產的lr6105q12柴油機上，在對改裝前後的發動機進行大量試驗和分析的基礎上，闡明了負荷、轉速、摻燒比等因素對雙燃料發動機的煙度、 hc 、 co等排放的影響情況，並且通過優化，最大限度地降低了發動機的煙度排放，同時使hc 、 co排放限制在國家標準規定的范圍之內。
  16. Abstract : the responses of shaft bow and their relationships with unbalanceresponses and mechanical or electronic run out are analyzed based on the theory of rotor dynamics. the responses of shaft bow are separated from the unbalance responses successfully by making use of vibration information under different rotor runs. an identification method of thermal bend is presented based on the 2d - holospectrum technique. experimental results show that when bow phase is steady and amplitude is variable, the tangent of initial phase point on the 2d - holospectrum is parallel, which can be effectively used for diagnosis of bent shaft

    文摘:依據轉子動力學理論分析了柔性轉子彎曲響應的特徵，在此基礎上討論了它與不平衡響應及機械與電氣跳動量之間的關系，並利用轉子在不同起車情況下的振動信息，有效地分離了彎曲響應和不平衡響應，求解出彎曲量與不平衡量的比值.提出了轉子在恆定轉速下，基於二維全息譜技術的熱彎曲故障識別方法.研究結果表明，當彎曲量相位穩定而其幅值變化時，轉子響應的二維全息譜初相點的切線是相互平行的，由此可以有效地實現轉子熱彎曲故障的識別與診斷
  17. 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。
  18. In the speed control system, because of the system ’ s low speed and high precision, incremental pid control algorithm is adopted. in the position control system, a dual mode control algorithm is designed, which can not only guarantee the rapidity in the position control, but also realize the small overshoot accurate positioning

    在控制系統的設計中，針對本系統轉速低、精度高的特點，在速率控制系統中，採用增量式pid演算法;在位置控制系統中，設計了雙模控制器，以保證系統定位過程的快速性和小超調精確定位。
  19. This frequency range is proximate to main vibration frequency of the traction machine at rated speed, and, according to this, measures against elevator resonance are proposed

    並針對該頻率區與曳引機主機額定轉速主振頻率接近的特點，提出了防止電梯發生系統共振的措施。
  20. Firstly, the performance is calculated at the design point of the ws - 9 aeroengine by using the numerical model established. secondly, after obtaining the performance coupling parameters, the steady - state performance of the non - designed points is caculated. third, respectively make the limitation of rotate speed of the high pressure rotor and low pressure rotor equal to corresponding parameters of designed point, after the data calculated compared with those of designed point and actual testing of the manufactory, the error is obtained

    首先，用所建立的發動機數學模型計算了發動機在設計點的各項性能，第二，根據發動機各部件的耦合特性參數計算得到發動機在非設計點狀態下的各項穩態性能，第三，分別設定限制高壓轉子轉速和低壓轉子轉速逼近設計點條件下對應的參數，將計算得到的性能數據與設計點性能進行了比較，並將非設計點的計算結果與生產試車過程實測的性能數據進行對比，給出了該穩態模型計算結果與實際試車數據的誤差。
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