旋進率 的英文怎麼說
中文拼音 [xuánjìnlǜ]
旋進率
英文
precession rate-
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。The machine is circumgyration drilling machine that the rotary drives drilling tool to bore by rotation, adopts full hydraulic pressure drive, constant power loop, wheel cylinder startup, oil cylinder disappear ing end bumper, electrohydraulic combined control, steel wheel traveling and disassembly transport
該機是由轉盤帶動鉆具旋轉鉆進的回轉鉆機，採用全液壓驅動，恆功率迴路，分泵啟動，油缸升降，電液復合操縱，鋼輪行走，解體運輸。This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization
本文以拉格朗日方程為理論基礎，對慣性制動器在制動時的振動進行數學建模，然後用matlab對其進行模擬，得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系，為慣性制動器的結構優化提供了理論依據。In addition, the trajectories of oil droplets entering the hydrocyclone were computed by using the particle obit model. thereby the separation efficiency of the hydrocyclone can be obtained
另外，本文用顆粒軌道模型計算了進入水力旋流器的油滴顆粒運動軌跡，在此基礎上，得出了水力旋流器的分離效率曲線。Compared to the traditional converter, the new one can transform electric power from a static part to a rotary part without an electrocircuit connection, which makes the contactless power transform come true. one application of this converter is to supply a steady and regulable excitation circuit for synchronous generator by integrated its second winding with the motor while its primary winding is static. the thesis gives two methods of the rotating converter design paticullarly : flyback and fullbridge, and explains how the circuits are designed
通過理論分析、模擬分析和實驗驗證，得出這兩種旋轉變換器都能進行感應電能傳輸，但它們的傳輸功率是不同的，反激式旋轉換器最大隻能傳輸幾十瓦功率的感應電能，因此只能用在感應電能傳輸較小的場合，或者信號傳輸的場合;而全橋式旋轉變換器能傳輸較大的功率，可用於電機的新型無刷勵磁方案中。The experiment can obtain the driver and the torsion of the screw propeller of relative speed and is an important method to analyze the efficient part of push
船模自航試驗可獲得對應航速螺旋槳推力和轉矩，是分析各種推進效率成分的重要手段。Variable diameter rotor is an effective method to improve the aerodynamic performance of tilt - rotor in both hover and cruise state. on the basis the research before, the variable diameter tilt rotor structure design has been finish, and in virtue of the technology of virtual prototyping to simulate and analyze the kinetic, dynamic and intensity property of it
變直徑傾轉旋翼能有效的改善傾轉旋翼機懸停和巡航狀態下的氣動效率，本文提出了變直徑傾轉旋翼試驗模型設計方案，完成了可變直徑傾轉旋翼的結構設計，並利用虛擬樣機技術對變直徑傾轉旋翼的運動特性、結構動力學特性以及結構強度進行了分析、研究。Although the accuracy in meterological forecast of tropical cyclones has been distinctly improved, it is still a difficult problem confronting masters and anti - typhoon team leaders of the companies how to steer clear of typhoon reasonably and safely in case that the actual resistance to typhoon is strong enough, the sea area wide enough, and the time permitting ; to avoid unreasonable deviation, anchoring for shelter, blindly rushing onto her path, being involved in storm area, even into the the center of typhoon ; under the limitation of the condition of the sea area and time. how to take correct meassures to escape, such as navigating with wind or windward in bias angle, slowing down, anchoring, berthing alongside the warf, mooring to buoy, etc. as early as possible
盡管氣象部門對熱帶氣旋監測預報的準確率已經比過去有了明顯的提高，然而船舶在海上如何避離臺風，如何做到在本船實際抗風能力允許、海域條件允許、時間也充裕的前提下合理避臺，安全避臺，避免不合理的繞航、 「扎風」 ，避免盲目冒進「搶風頭」 ，更避免被捲入強風區甚至臺風中心；在海域條件受限、時間尷尬的情況下又如何正確採取偏順航、偏頂航、滯航、錨泊、系岸、系浮等抗臺措施和技術，盡快擺脫臺風的影響，仍然是擺在船長和公司防抗臺領導小組面前的一個實實在在的難題。Abstract : three - stage dust removal system of impinger, centrifugal dust collector, wet fibre - grid scrubber applying to dust collecting of driller in opencut mine is reported in this paper. the operational results show that this system has stable operation, higher dust removal efficiency, less drop pressure and dust concentration of outlet of the system meets emission standard
文摘:介紹了用慣性除塵器、旋風除塵器、濕式纖維柵除塵器組成的三級串聯除塵系統進行露天礦的鉆機收塵，運行結果表明該系統運行可靠，阻力小，除塵效率高，系統出口含塵濃度達到排放標準。This thesis will put forward a new design project that aimed at discussing the packing sets of natural - draft counter - flow dry cooling tower, which is the research and application of the spray nozzle. the content mainly includes the experimental study of the application of the jnx - 01 spray nozzle in cooling tower, as well as the heating calculation
本文將針對自然通風逆流濕冷式冷卻塔中影響效率較大的淋水裝置提出設計改進方案，即旋轉式噴濺裝置的研究與應用，內容主要包括jnx - 01型節能旋轉式噴濺裝置及旋轉濺水碟式噴頭在冷卻塔上應用情況的試驗研究及熱力計算。It indicated that not only can spirulina cells grow photoautotrophically and photomixtrotrophically, but also can grow heterotrophically under some specific conditions. light intensity, light quality, temperature, species and concentration of metals, rare earth elements and vitamins, salinity, cell concentration, dissolved oxygen level and magnetic filed etc., all play important roles in photosynthetic performance and cell productivity of spirutina
認為螺旋藻細胞不但能進行光合自養和混合營養生長，而且在某些特定的環境條件下，還能進行異養生長；光照強度、光質、溫度、金屬元素、稀土元素、鹽度、藻體細胞濃度、溶氧水平、維生素、激素和磁場等環境因素對螺旋藻細胞的光合性能和細胞產率都有顯著影響。The investigation shows the performance gets quite insensitive to the prewhirl angle of igv as the stagger angle of diffuser vane is reduced to the minimum 7 ; the combination of these two stators enables to greatly improve the compressor efficiency over the entire operating rage, the maximum efficiency with the combined adjustment reaches 86. 0 %, higher than that in alone adjustment of igv or diffuser vanes by 2 %
研究表明：擴壓器進口安裝角最小值為7時，壓縮機性能對進口導葉預旋角不敏感；採用不同的擴壓器進口安裝角和不同進口導葉預旋角匹配調節時，壓縮機所能達到的最高效率為86 . 0 % ，比單獨調節進口導葉預旋角或擴壓器進口安裝角所能達到的效率高2 % 。The detail study on the interaction between the electron beam and standing wave of complex cavity gyrotron with gradual transition and gyroklystron has been done in this dissertation, supported by the pre - study important items " the study on 8mm third harmonic gyrotron with a permanent magnet system " and " the study on 8mm high power gyroklystron ". the main works of this dissertation are listed as following : 1. the study on the rf distribution of the complex cavity with gradual transition is presented, in which the multi - modes coupling are taken into account
本論文就是結合該課題組的「九?五」重點項目「 8mm三次諧波永磁包裝迴旋管技術的研究」及「十?五」重點項目「 8mm高功率迴旋速調管技術的研究」 ，對以諧振腔為互作用高頻系統的迴旋脈塞器件中兩種典型的器件? ?迴旋振蕩管及迴旋速調管中電子注與駐波場的互作用進行了深入細致的探討和研究，其中迴旋振蕩管採用的是漸變復合腔。Based on the analysis and processing of the digital speckle pattern, the translation and rotation invariant features are discovered, and a one - step feed - forward neural network is creatively proposed which makes it possible to realize the intelligent recognition of interface defects
通過對數學散斑條紋的分析與處理，找出了能代表條紋信息的移位不變與旋轉不變特徵值? ?最大斜率，進而構造一種新的網路模型，即單步前饋式三層網路系統.率先實現了把神經網路系統用在數字散斑無損檢測之中，完成了神經網路系統對粘接界面缺陷的智能辨識A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study
在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。Stepping drive of synchronous motors, upgrading the design idea of stepping motors from combined electromagnet theory to rotary magnetic field theory, will make the capability and efficiency of the increment control system improved to a new level, which is the research purpose of ac step motion drive this paper begins with the direct torque control method for pmsm to expatiate ac step motion control theory distinctly
用同步電動機實現步進傳動；將步進電動機的設計思想從組合電磁鐵理論提高為旋轉磁場，使增量運動系統的容量和效率發展到一個新的水平，這就是交流步進傳動的研究目的。為了比較清楚地闡述交流步進理論，本文首先從永磁同步電動機的直接轉矩控制演算法入手來分析。Abstract : performance evaluation on five kinds of dust collectors installed in the 2nd phase progress project of pangang, its efficiency and the comparison of measured parameters of air quantity with design parameters were taken in paper. the results showed that the electric dust collectors, water dust scrubbers, large bag dust extractions and cyclone dust collectors performed satisfactorly, small bag dust extractions took the bad with the good, and foam dust collectors went badly
文摘:通過對攀鋼（集團）公司二期工程上馬的5種類型除塵器性能進行監測評價，重點對除塵器除塵效率和處理風量的實測值與設計值相比較，調查監測結果表明：電除塵器、水膜除塵器、大型布袋除塵器和旋風多管除塵器性能良好；小型布袋除塵器運行情況良莠不齊，泡沫除塵器運行情況差。To discuss the natural vulnerability of different coasts to future sea - level rise, the paper selects the coasts along the pearl river mouth as the studied area. after analyzing the impacting factors of natural vulnerability along the pearl river mouth, the paper divides the coastline of approximately 412km into 25 15 - minute gird cells. for assessment purposes, the six variables including geography, relative sea - level change, average tide range, regional slope, shoreline erosion or accretion rates and tropic cyclone impacting frequency are selected as assessed variables
為了探討不同海岸帶對未來海平面上升的自然脆弱性，本文以珠江口沿岸作為研究個案，在分析珠江口沿岸自然脆弱性的影響因子的基礎上，把珠江口沿岸412km岸線劃分為25個15 15的網格單元，選取了地質、海平面上升率、平均潮差、區域海岸坡度、海岸侵蝕/堆積率、熱帶氣旋影響頻率6個評價指標，應用cvi指數評價公式對珠江口地區進行海岸脆弱性評價，並建立海岸脆弱性評價數據庫，繪制了珠江口沿岸1 ： 2 ， 000 ， 000的數字化cvi圖。If, while exposed to the magnetic field, the precessing nuclei are also hit with a radiofrequency ( rf ) pulse, they will absorb and re - emit energy at specific frequencies according to their rate of precession
當暴露在外界磁場中的時候，旋進的原子核也會被射頻脈沖擊中，它們會吸收並且根據旋進率再釋放特殊頻率的能量。Larmor precession frequency
拉莫爾旋進頻率分享友人