zero speed 中文意思是什麼

zero speed 解釋
無航速
  • zero : n (pl zeros zeroes)1 【數學】零;零號。2 零位;零點,起點;(溫度表的)零度,冰點;座標原點;無...
  • speed : n 1 快,迅速。2 速率,速度。3 (汽車的)變速器,排擋。4 (膠片,照相紙)感光速度。5 〈古語〉興隆...
  1. Service ceiling was 37, 500 ft. the f4f - 3 offered good durability, pilot armor, and a high dive speed. it also had good maneuverability, although it was soon discovered that it could not compete with the japanese zero in this area

    F4f - 3有著良好的可靠性和較高的巡航速度,操控性能優異,飛行員有裝甲保護,不過還是遜色於它在太平洋戰爭中的對手日本零式戰斗機。
  2. Win600 freight lift is provided with the safe and reliable microcomputer control or plc control. the traction is equipped with vvvf wector to make the start, acceleation, deceleration and stop of lift stable and confortable. zero - speed braking stop is uesd to greatly increase the leveling accuracy, reduce te noise and vibration of operation and save energy over30 % than traditional ac double - speed traction

    Win600系列載貨電梯採用微機活plc控制,安全可靠,拖動系統採用vvvf矢量控制使電梯的啟動加減速停車都十分平穩舒適,停車時實行零速控制動停靠,大大提高平層精度,降低運行噪音和振動,並且節能環保,比傳統的交
  3. The anti - rolling tank is one of stabilizing equipments, and it fits for ships working at zero speed or low speed such as passenger and train ferry, roll - off vessel, research and exploration vessel and so on in particular

    減搖水艙是船舶減橫搖裝置之一,它適用於經常工作在零航速或低航速的船舶減搖,如車客輪渡、滾裝船和科學考察船等。
  4. The anti - rolling tank is one of the most popular used stabilizing equipments, and it fits for ships working at zero speed or low speed such as passenger and train ferry, roll - off vessel, research and exploration vessel and so on in particular

    減搖水艙是應用最廣泛的船舶減橫搖裝置之一,它特別適用於經常工作在零航速或低航速的船舶減搖,如車客輪渡、滾裝船和科學考察船等。
  5. The diffusion model and numerical simulation model for chaff clouds are modeled on the assumption that the speed of air where chaff locates is a winner random process and the mass of chaff is zero so it can trace the atmosphere speed very well

    摘要假定箔條所在位置處大氣運動速度是一個維納隨機過程,同時在忽略箔條的質量時箔條的運動完全反應當地大氣的運動,在此基礎上建立箔條雲團的擴散模型及數值模擬模型。
  6. The algorithm and its implementation of the leading zero anticipation are very vital for the performance of a high - speed floating - point adder in today s state of art microprocessor design. unfortunately, in predicting " shift amount " by a conventional lza design, the result could be off by one position. this paper presents a novel parallel error detection algorithm for a general - case lza

    目前國際上已有很多演算法對前導0預測演算法進行了研究,但是出於設計方法和延遲等方面的限制,大部分前導0預測演算法都為非精確演算法,其預測結果可能與真實加法結果中前導0的個數產生一位的誤差,這個誤差需要在浮點加法的后規格化過程中進行修正,因此反過來又增加了浮點加減演算法的關鍵路徑延遲。
  7. Rotor position estimation of permanent - magnet syachronous motor at zero - speed and low - speed

    零速和低速下永磁同步電機轉子位置估測方法
  8. Consoidering the low bit - rate video encoding characteristics, background block search algorithm, which is based on diamond search algorithm was used to improve the motion estimation speed. and detection of all - zero block algorithm was chosen for the reason of static background sence in minotor video encoding application

    分析了低碼率監控視頻的特點后,我們對編碼演算法進行了修改,提出了基於鉆石搜索的背景塊運動搜索演算法和全零塊預判演算法,提高了編碼程序的效率。
  9. Second, we introduce a two - lane traffic model which is based on the ( 0, 2 ) and ( 0, 1, 2 ) models. we mainly study the coupling effect of lanes. in two - lane traffic, vehicles can change lanes and overpass. the interactin between lanes is considered as coupling effect. the computer simulation indicate that ( dthe current of the system with cupling is greater than that without coupling ; 0for a certain initial density, the average flow and speed are indepent on the coupling coefficient which is greater than zero ; when the initial densities ( speeds ) of lanes are different, the characters of traffic system will be different

    在單車道模型的基礎上,建立v _ ( max ) = 2雙車道模型,研究車道的耦合效應。雙車道模型中車輛可以進行轉道、超車,兩道之間有耦合作用。模擬結果說明,有耦合時系統的流量比沒有耦合時大;在固定的初密度條件下,只要耦合系數b 0 ,兩道間的耦合強弱對流量和速度無影響;兩道初密度分佈不均勻和速度分佈不均勻都能使交通系統特性發生變化。
  10. The anti - rolling tank is one of the widely used stabilizers in the world, and it fits for ships working at zero speed or low speed, whose characters are simple structure, low cost and easy to maintain

    減搖水艙是世界上成功應用的減搖裝置之一,它具有結構簡單、價格低廉、易於維修等特點,在零航速或低航速情況下能正常工作。
  11. The calculated results indicate that maneuvering efficiency of the bow lateral thruster is related to velocity and thruster ' s rotate speed directly, it is the best at zero velocity, and maneuvering efficiency of the bow lateral thruster increase with increasing thruster ' s rotate speed ; the calculated results also indicate that crabbing motion can be operated for large vessels under the main thruster, the bow lateral thruster and the rudder ' s united control

    計算結果表明側推器操縱效能與航速及槳轉速直接有關,零航速最好,且隨槳轉速增高而增強;結果同時也表明了藉助于主推進器、首側推器和舵的聯合操縱可實施純橫移運動。
  12. Second, as currently study of hot point, back ? emf, it will discuss the principle of the sub - position examination in detail. based on the principle, it put forward a kind of improving back - emf method of crossing - zero checking turns position. but this did n ' t resolve to the root problem that the speed scope is very narrow and it need an in expiation of speed error and so on. thus it put forward a new improvement method at next chapter

    其次,就目前所研究的熱點? ?反電勢法,詳細討論了其轉子位置檢測的原理,在此基礎上提出了一種改進的反電勢過零點檢測方法,其可直接從電機端部得出反電勢對地的電壓值,而不是通過電機中心點電壓來得到反電勢。
  13. At last, it deduced a new improvement method from the theories, and make use of a new physical concept ? the independent of speed function for accuracy checking up the turns sub - position and the communication point so as to control sensorless brushless dc motor with the breadth regulating - speed scope from zero to high speed. based on the function, it will research the new control method

    最後,從理論上推導了新的改進方法,並利用一個新的物理概念? ?與速度無關的位置函數g ( ) ,其能高精度檢測出轉子位置和換相點,以此來控制無刷直流電機,實現電機從零轉速到高轉速的寬速度范圍調節,在此基礎上研究了應用這種新的位置函數的控制策略。
  14. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術,按照頂層設計思想,採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架,設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等,利用該單片機獨有的hso和hsi介面及其強大的指令系統,實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制,在此基礎上,該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  15. In this paper, we design the imc controller using zero - pole cancellation method, and tune the controller filter parameter a according to the error e and its first difference a e and acquire the best combination between robust performance and the response speed. the error e is the difference between the reference model output and system output

    本文採用相消法設計內模控制器,用參考模型理想輸出和實際對象輸出之差e及其變化率e在線模糊調節控制器中濾波參數,使系統的性能達到快速性和魯棒性的最佳結合。
  16. Design and development of new style soybean precision and spray machine with zero speed

    新型大豆精密零速播種中耕噴霧機的設計與研製
  17. How to improve the accuracy of flux observer is very important in high - performance motor system, especially at low - speed or zero - speed situation. high - frequency signal injection is believed the efficient method to solve these difficuilties

    高頻信號注入來實現極低速甚至零速情況下磁鏈位置的觀測是目前該領域的熱點研究內容,本文採用的是d - q軸阻抗差異法。
  18. Within the specified time limit, the strategy determines and implements an optimal feed - forward control sequence to the system, swings up the double inverted pendulum from its hanging position, and achieves zero speed state at the upright position

    該策略通過在規定的時間內向系統施加一前饋控制序列,使上、下擺桿從自然懸垂位置擺到倒立點位置並使速度為零。
  19. By increasing the resistance, the characteristic will cut zero - speed axis to give a lower, though adequate starting torque and a reasonable starting current

    並勵電動機(機械特性)方程表明:若磁通和電壓恆定,則向下傾斜的轉矩/速度曲線的斜率是直接與電樞電阻成正比的。
  20. This paper is the theoretical summary of the development around the dynamic positioning system by the writer, which includes several aspects of the studies as follows, 1. in allusion to the feature of zero - speed of the ship in positioning control process, the dynamic mathematics model of the ship ' s movement has been established, which fits to the dynamic positioning, and the mathematics model of the environment of sea and ocean which disturbs the ship in dynamic positioning, which has founded the base of further study

    本文是作者以rov工作母船為背景,圍繞動力定位系統的開發工作所做的理論研究工作,主要包括以下幾個方面的研究工作: 1 )針對處于定位控制的船舶工作在零航速附近的特點,建立了適合於船舶動力定位系統研究用的船舶低頻運動模型,為滿足控制器設計的需要,建立了船舶高頻運動模型和海洋環境作用模型,為以後的分析奠定了基礎。
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