變轉速 的英文怎麼說
中文拼音 [biànzhuǎnsù]
變轉速
英文
variable speed-
According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also
根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。Diesel, high roof, 5 - speed manual transmission, china standard specification, automatic door ( gliding type ), clock, cooler, amfm radio & cassette wmicrophone, tachometer, rear fog lamp, rear under mirror, rear window defogger, curtain, passengers seat belt, baggege rack, full wheel cap, high mount stop lamp, refrigerator. side glasspro - molding
，柴油，高頂，五檔手動變速，自動門（飛機門） ，鐘，原廠空調，收錄機連話筒，轉速表，后霧燈，尾鏡，尾發熱線，窗簾，乘客座位安全帶，行李架，大轆cap ，尾高掛剎車燈，冰箱，側面車窗（滑動式深綠色玻璃）In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題，具體成果和創新點如下1 、根據流體力學理論，建立了螺旋槳推進器的動態模型，它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量，以電機施加轉矩為輸入，螺旋槳推力t和轉矩q為輸出。This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。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。The north border of the basement, extended from west to east along the north latitude 38, this latitude structure zone is part of the zone in the middle of ordos basin along the north latitude 38, this is caused by the rate of earth rotation, according with the condition of global harmonic function
壓陷北界沿北緯38帶東西向展布，該緯向構造是沿鄂爾多斯盆地中部38帶分佈的緯向構造帶的一部分，是由地球自轉速率變化引起，符合全球協和函數的條件。G ) the convertion of si 1126 data into ktva input data file : ktva ' s values, definition, unit and format are tested many times. h ) the result of simulation computation is visualized and analyzed, i ) the study on sll 126 parameters ; by altering the ajustment data, their performance changes are studied
本文首次應用kiva模擬平臺，對s11126柴油機進行了模擬；通過主要參數（噴油量、轉速、噴嘴安裝高度等）的改變，分別計算出多項主要性能指標曲線和圖形，並對其進行分析，從而總結出以上參數的改變對性能的影響，驗證了kiva模擬平臺的強大功能。Scientists are delaying the start of 2006 by the first " leap second " in seven years, a timing tweak meant to make up for changes in the earth ' s rotation
科學家們把2006年的到來推遲了一「閏秒」 。此次全世界調時距上次已有7年時間，而調時的主要原因則是地球自轉速度的變化。The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage
系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。For piston-engine-propeller system, the usual fixed-control case implies fixed throttle and constant rpm.
對于活塞式發動機推進系統，通常固定操縱情況是指固定油門和轉速不變的情況。Their properties have been investigated by using scanning electronic microscopy ( sem ), differential scanning calorimetry ( dsc ), x - ray diffraction ( xrd ), thermogravimetry - differential thermal analysis ( tg - dta ), infrared spectroscopic analysis ( ir ), and gas chromatography ( gc ), etc. the effects of the mulser ' s stirring rate and the emulsifier concentration on the properties of encapsulated pcms have been systematically studied, and nanopcms have been obtained by increasing the stirring rate or the emulsifier concentration. the influences of different nucleating agents on micropcm performances have also been investigated in detail to search for a suitable nucleating agent to prevent micropcms from super - cooling
首先，系統研究了乳化機轉速和乳化劑濃度對膠囊性能的影響，並通過提高轉速或乳化劑濃度獲得相變材料納膠囊；其次，系統研究了不同成核劑對微膠囊性能的影響，找到合適的成核劑抑制了相變材料微膠囊的過冷現象；再次，詳細研究了環己烷對膠囊性能的影響，並通過添加適量環己烷提高了相變材料微膠囊及納膠囊的耐熱溫度。This research task used industrial controlling computer as the hardcore of the automatic testing system, and the other electrical parameters testing instrument were used as the subordinative equipment of the automatic testing system
本研究課題採用工控機作為自動測試系統的核心控制設備，其他各種由單片機組成的電參數測試儀、電阻測試儀和轉矩轉速測試儀以及西門子變頻器等設備組成測試系統的從屬設備。The author analyzes the change rules of fuel consumption and the mass of the main exhaust emission pollutants ( nox, pm, co, hc and carbon ) with the operating parameters ( speed and load ), points out that nox and pm are the primary exhaust emission pollutants which affect the turbocharge - intercooled diesel engine to reach the requires of emission regulations, and map the figure of compositive exhaust emission characteristic
分析了有效燃油消耗率及各主要排放污染物（ nox 、 pm 、 co 、 hc 、碳煙）的排放量隨運轉參數（轉速n與平均有效壓力p _ （ me ） ）的變化規律。指出nox與pm是影響增壓中冷柴油機排放達標的主要排放污染物，並繪制了排放綜合特性圖。這為該類型柴油機的性能分析提供了參考。Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied
本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。The work principle of dual stator - winding induction generator system, and the researches on practical application of dual stator - winding generator system are analyzed in detail. aimed at the work condition of wide rotor speed and optimization of static reactive power generator ’ s volume, the performance of dynamic state and static state and optimal control of high - voltage dc generator system based on dual stator - winding induction generator, are studied in this paper. these researches not only achieve the work characteristic of dual stator - winding induction generator system, but also set up the foundation of optimal design of dual stator - winding induction generator and engineering realization of dual stator - winding induction generator system used in wind generating
本文闡述了定子雙繞組發電機的基本工作原理，基於matlab軟體建立了定子雙繞組感應電機發電系統的模型，並在此基礎上詳細分析了定子雙繞組感應電機發電系統的工作機理、影響兩套定子繞組容量比的因素等，從而摸清了該系統的特性，尤其是定子雙繞組感應電機高壓直流發電系統在變轉速、變負載下工作的特性，從而為該系統的工程實現奠定了重要的理論基礎。In the dissertation, a novel hybrid excitation constant voltage synchronous generator is adopted to improve the system performance, which takes the advantages of both electrical excitation and permanent magnet machines. a parted configuration is presented in order to design the structure of the generator. the adaptive digital adjustment is settled in principle using the single chip microcomputer 80c31 as the control core of the voltage regulator and adopting the proportion - integral - differential control as the control arithmetic, then a sample is made
論文對同步發電機的工作原理、性能特點、電機本體以及電壓調節器的硬體和軟體設計進行了研究，針對稀土永磁同步發電機變載、變轉速情況下輸出電壓不可調的不足之處，採用一種新穎的電機型式? ?自適應復合勵磁恆壓同步發電機，綜合了永磁發電機和電勵磁發電機的優點，提出一種磁路分開的結構進行電機本體的設計，並選用單片機80c31作為電壓調節器的控制核心，比例?積分?微分控制（ pid ）作為其控制演算法，從原理上較好地解決了其電壓的自動數字調節，並試制了一臺樣機。The effects of some parameters such as mould temperature and its uniformity, the mould rotation rate on the surface roughness and uniformity of thinkness in the process of duplex, alterable - rotation coating are studied
研究了用變轉速二次布砂工藝覆砂時，鑄型溫度及其均勻性和鑄型轉速等工藝參數對覆砂層厚度均勻性和表面粗糙度的影響規律。Hydraulic variable speed drive system of shield disk cutter
盾構刀盤變轉速液壓驅動系統Experiment research on capillary expansion of inverter air conditioners performance
毛細管節流的變轉速空調器特性實驗研究To keep constant cutting angle and speed, a method with tool swinging and variable - speed of spindle is presented
為了解決上述問題，本文提出了刀具擺動與主軸變轉速的凸輪車削加工方法，以實現恆角度與恆速度切削。分享友人