speed-power curve 中文意思是什麼
speed-power curve
解釋
速率功率曲線-
The power curve indicates that doubling the wind speed will lead to an eightfold increase in power
功率曲線顯示風速加倍將使功率增加8倍。 -
To tune up the frequency of power supply by the transducer in the system, this adjusting make the speed of electromotor and performance curve of pump change. at last, it make the status of a pump alter
在變頻調速恆壓供水系統中，單臺水泵工況的調節是通過變頻器來改變電源的頻率f來改變電機的轉速n ，從而改變水泵性能曲線得以實現的。 -
First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
首先由於它的揚程較高、流量較小，所以它的流道狹長，圓盤摩擦損失較大，效率相對較低；其次由於它的流道擴散較嚴重，易在葉片進口產生迴流和在出口產生脫流，揚程流量特性曲線易出現駝峰，在小流量工況下易產生不穩定現象；第三，由於其功率流量曲線呈現上升趨勢，在大流量區運行時電機易過載。 -
To measure driving expectation speed, this dissertation makes the concept of driving behavior coefficient to calculate degree of power control of driver for vehicle, and related ~ aw is studied between driving behavior coefficient and road geometry, through marking the feature curve of driving behavior coefficient in various type road sections, the calculation model of expectation speed is established
為推定駕駛期望車速，本文提出了駕駛行為系數的概念，用以衡量駕車人對于車輛的動力控制，並重點研究了駕駛行為系數與道路線形之間的常態相關規律，通過標定駕駛行為系數在各種類型道路區段的特徵曲線，推導了駕駛期望車速的計算模型。 -
As a new bus standard in computer peripheral hardware, usb is adopted and widely used in virtual instruments for its ease of use, true plug and play, power supply from bus, high transmission speed, etc. the purpose of this project is to design and develop a virtual instrument that can test and display semiconductor transistor output characteristics curve, instead of tradition instrument which has being used in labs by now
而usb總線作為一種新興的計算機外設總線標準，由於易用、支持熱插拔、總線供電、傳輸速率高等特點，已經在虛擬儀器當中得到采納與普及。本文介紹了一種實現晶體管特性曲線測量的虛擬測試儀器的設計和製作方案，其可用來取代目前在實驗室中使用的老式的晶體管特性圖示儀。 -
It is discovered that the fluctuating increment of the instantaneous angular acceleration curve of crankshaft ( ay method ) put forward in this paper can be used to diagnose the power and compression condition of multi - cylinder engine in the state of shorter, more rigid crankshaft and lighter torsional vibration and in the rapidly diagnosed situation, and the ay method is better than the fluctuating increment of the instantaneous rotation speed curve of crankshaft ( n method ) which is used widely now
結果發現，在內燃機曲軸較短、剛性較大、扭振較小、對診斷速度要求很快的場合，用本文提出的曲軸瞬時角加速度波動增量j法能較準確地判斷多缸內燃機各缸的作功狀況和壓縮狀況，優于目前廣泛使用的曲軸瞬時轉速波動增量n法。 -
Abstract : a fast drag system is designed to simulate the law of speedvariations of a certain power system engine in the process of its start by means of electric power drag and the theory of automatic control and through adopting a new type of electric machine and frequency - change techniques, thus enabling the system to achieve quick start, instantaneous breakdown and accurate following of the electric machines speed variations curve set in advance at will
文摘:運用電力拖動與自控理論，採用新型電機及變頻技術，設計一種快速拖動系統藉以模擬某動力系統發動機啟動過程轉速變化的規律，使該系統能夠達到快速啟動，瞬間制動，精確跟隨事先設定的電機轉速變化曲線的目的。 -
Based on the torque - speed characteristic curve of induction motors, analyses were done on changes in slip with an variation in frequency when an induction motor drives different kinds of loads, including those with constant torque, constant - maximum torque, variable torque ( except fans and pumps ) and constant power, as well as fans and pumps, the formulas to calculate the slip and the speed under different frequencies and loads were presented
摘要以異步電動機機械特性曲線為基礎，分析了變頻調速異步電動機在拖動恆轉矩負載、恆最大轉矩負載、變轉矩（非風機和泵類）負載、恆功率負載以及風機和泵類負載時，轉差率隨頻率變化的規律。 -
According to the supply system composed by parallel connection water pump, many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps, electromotor, speed governor imitate method of characteristics curve of the power device and its rotating speed, efficiency, energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results
摘要針對由並聯水泵組成的供水系統，提出了在以單泵可能提供最大流量為分界點的兩側流量變化范圍內具有多種運行方案；確定了在不同工況下，該系統中水泵、電機、調速器特性曲線的擬合方法及其各動力裝置中轉速、效率、能耗的計算式；採用解析的方法對各種運行方案進行了經濟性和安全性綜合評價，並給出最優結果。 -
On the basis of analysis of the theory of mechanical - hydraulic power match system an electro - hydraulic proportional power match system which was suitable for matching tlc900 transporting girder vehicle of the engine was developed according to the driving force - speed curve and parameter, and the control rule and program flow chart about the system were also given
摘要在分析了機械液壓功率匹配系統原理的基礎上，根據液壓系統驅動力速度曲線及參數，提出了適用於tlc900型運梁車液壓驅動系統與發動機功率匹配的電液比例功率匹配系統，並給出了控制規律及程序流程圖。
分享友人