螺線面 的英文怎麼說
中文拼音 [luóxiànmiàn]
螺線面
英文
face of flight-
Shape definition for snap face curve of twing screw ofcomplete conjugation
全嚙合雙螺桿斷面曲線幾何形狀的確定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。Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results
這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平面阿基米德螺旋天線,平面等角螺旋天線,軸向模圓柱螺旋天線,具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例,用矩量法求解了天線上的電流分佈,研究了螺旋天線輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。As it is impossible to machine the helicoid gear surface with large module and a few teeth by gear generating, a four - axis milling was developed in this paper
摘要針對大模數少齒數螺旋齒輪的加工特點,結合漸開線和擺線的性質,利用微分幾何工具計算出該類曲面的法矢,作為選取球頭銑刀半徑的依據。Under a row of five coiled spring housebells a curvilinear rope, stretched between two holdfasts athwart across the recess beside the chimney pier, from which hung four smallsized square handkerchiefs folded unattached consecutively in adjacent rectangles and one pair of ladies grey hose with lisle suspendertops and feet in their habitual position clamped by three erect wooden pegs two at their outer extremities and the third at their point of junction
那是一排五個家用螺形彈簧按鈴,下面,在煙囪那凹進去的間壁兩側的兩個鉤子之間,彎彎地橫系著一根繩子,上面掛著四塊對折的小方手絹:一塊挨著一塊,彼此並不重疊,呈長方形。另外還有一雙灰色長統女襪,襪幫是用萊爾棉線25織的,腳脖子以下是通常的樣式。Compared to an ordinary rudder, the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees. ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action, and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water
其研究的魚形舵是一個沒有在水下移動的魚尾形剖面單片結構,增加了全舵的剖面拱度,使螺旋槳尾流的折射水量增強,進而增大了水動力的作用,使之比普通流線形舵的升力提高30左右。Ssr - dd series of dc solid relay is vastly applied to output joggle of computer and external equipments, it is also applied to control or switch dc load : dc relay 、 contactor 、 dc electrical motor 、 kinds of electric - heating apparatus 、 dc electromagnetic valve 、 electromagnetic iron 、 solenoid 、 filament lamp 、 indication lamp 、 plc logical electrical appliance and dc solid relay
Dd系列直流固態繼電器廣泛應用於計算機與外部設備的輸出介面,適用與控制或開關直流負載:直流繼電,接觸器、直流電動機、各類電熱器具;直流電磁閥,電磁鐵、螺線管、白熾燈、指示燈; plc邏輯電器。The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones, that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface, also is the vertical trajectory of the straight generatrixes
前兩種傳動形式的準線分別為節錐面上的斜航線與測地線,後者的準線為單葉雙曲面上沿直母線方向的等螺距曲線,且為直母線族的正交軌線。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義Solenoids, designed as electro - mechanical actuators, are available to customers in the expanding field of mechatronics
此外,在起動器用螺線管方面,各種能夠滿足機電一體化領域發展的產品也可供您隨意選擇。The steel construction is made up of roof beam, post, purlin, roofing and wall, adopt the automatic production line to weld and take shape in the factory, construction site spend high - strength bolted joint reduce weld work load, make progress and quality receive the complete assurance
鋼結構由梁、柱、檁條、屋面和墻體組成,工廠內採用自動化生產線焊接成形,施工現場用高強螺栓連接,減少了焊接工作量,使進度和質量得到完全保證。The company passed iso9001 in 2001 : 2000 international quality management system attestations. now the predominant product has already become xr series helical gear units, xf series parallel shaft helical gear units, xk serial helical - bevel gear units, xs series helical - worm gear units, xt series spiral bevel gear units, xb series high power gear units, xh series high power gear units, nmrv series worm gear units, mb, mbn series planetary friction mechanical speed variator, x, b series cycloid reducer, wb series cycloid micro reducer to wait more than ten serieses, several thousand kinds of specificationses of in general use product
現主導產品已形成xr系列斜輪硬面減速機xf系列平行軸斜輪減速機xk系列斜輪螺旋錐輪減速機xs系列斜輪蝸輪減速機, xt系列螺旋錐輪減速機, xb系列螺旋錐輪-斜輪減速機xh系列平行軸斜輪減速機nmrv系列蝸輪減速機, mb mbn系列行星錐盤無級變速機, x b系列擺線針輪減速機, wb微型擺線針輪減速機等十幾個系列數千種規格的通用產品。Analysis of archimedean spiral antenna using moment method with curved segmentations
曲線分段的矩量法分析阿基米德平面螺旋天線Remove junction box cover that is secured by 3 screws. place the cover aside and view the wiring diagram on the inside
通過旋下3個螺絲來拆卸接線盒。把蓋子放在旁邊並察看內面的接線圖。Part three raiders a game. crocodile left switches, oven gas bottle left in the switch, middle banana on the first rocket, the lower left - hand corner of machinery, machine screws below, the alligator left switch, gas bottle switch, the tail of a rocket, fired right lower antenna first
第三集游戲攻略1 .鱷魚左邊的開關3次,烤爐左邊的煤氣瓶開關,中間的香蕉放在火箭頭處,左下角的機器,機器下面的螺絲,鱷魚左邊的開關,煤氣瓶開關,火箭尾部,右下天線發射頭。Finally, a method is put forward to construct the nurbs curves on sphere, which extends the de boor recursive algorithm in r3 to one on the sphere by replacing the geodesic distances for the lines and studies their many geometric properties analogous to those in euclidean spaces, such as the differential property, the local property, the parameter invariance under a projective transformation, and so on
兩種方法均給出誤差估計,使逼近螺線可達到任何預先給定的精確階。最後,給出球面nurbs曲線生成演算法:用球面上測地線? ?劣大圓弧代替直線段,將歐氏空間r ~ 3中的deboor遞推演算法推廣到球面上構造麯線。Changing the diameters and fixing angles of milling cutter can meet the machining requirements of helical surface. this method has been applied in the process of manufacturing twin - screw in rubber and plastic mechanics, which simplifies the process route and shortens the prepare time in production and at the same time saves the cost and improves technical and economic benefits
通過改變圓柱立銑刀的直徑和加工安裝角度來滿足螺旋面的加工要求,該方法已在橡塑機械用同向雙螺桿的加工中得到應用,縮短了加工工藝路線,減少了生產準備時間,節約了加工成本,取得了良好的技術經濟效益。In the present work, there are two methods to design the shrouded - propeller. one is based on the blade element and momentum theory, the other is based on the ufbng - line ( surface ) theory derived from circumfluence theory
在實際工作中,函道螺旋槳的設計有兩種方法,一種是基於葉素理論與動量定理的工程方法;另一種是基於升力線(面)方法的環流理論方法。A printer in which embossed characters on short type bars attached to a belt move along the line to be printed and are selectively struck from behind by a solenoid as they pass the printing position
一種印表機,列印字元刻在活字條上並固定在一條可沿可印行運動的帶子上,當列印字元通過列印位置時,螺線管就選擇字元,從後面擊打,而完成列印。As - i en 50295 low - voltage switchgear and controlgear. controller and device - interface systems. actuator sensor interface
低壓開關和控制設備及裝置.介面系統.螺線管傳感器介面分享友人