螺曲線 的英文怎麼說

中文拼音 [luóxiàn]
螺曲線 英文
spiral curve
  • : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. In the special fields wheel drive, wheel, gear box construction with spiral technology or beyond that with hypoid, cone, spur wheel as well as with gears, spiral cones and / or with bevel gear and cogged wheels and gears is graessner gmbh well - known

    Graessner gmbh是一家現代化的、可靠的專門產品供應商,這家供應商從事傳動、傳動齒輪箱,錐體、圓錐、彈頭,錐齒輪,錐齒輪,錐齒輪驅動,錐形圓柱齒輪,輪、葉輪、齒輪,齒輪,齒輪傳動,旋錐,齒錐齒輪傳動箱,圓柱齒輪,齒輪和傳動結構的製造、銷售。
  2. Shape definition for snap face curve of twing screw ofcomplete conjugation

    全嚙合雙桿斷面幾何形狀的確定
  3. Continuous blade curve of isobaric pital of spherical milling cutter

    關于球頭銑刀的等距連續刃口
  4. 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分別為節錐面上的斜航與測地,後者的準為單葉雙面上沿直母方向的等,且為直母族的正交軌
  5. Analysis of archimedean spiral antenna using moment method with curved segmentations

    分段的矩量法分析阿基米德平面旋天
  6. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回與轉角滯回為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與轉角骨架在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。
  7. The experiment procedure and analysis result about exteriorly extended end - plate connection with high strength bolt are introduced primarily ; each sample ' s dimension is given. the adding load equipment, measuring apparatus placed, measuring point established is detailed. adding load measure load and m - curve is produced ; the single span gabled frames horizontal displacement formula is deduced when the horizontal concentrated force is applied to it

    重點介紹了外伸端板高強栓連接的實驗過程及實驗分析結果,介紹了各組試件的形狀尺寸、加載裝置、測量儀器安放、測點的布置等;給出加載方式及測出的m -;計算出試驗節點的初始剛度;推導水平集中力作用下單跨門式剛架考慮節點半剛性的側移計算公式。
  8. 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,使逼近可達到任何預先給定的精確階。最後,給出球面nurbs生成演算法:用球面上測地? ?劣大圓弧代替直段,將歐氏空間r ~ 3中的deboor遞推演算法推廣到球面上構造麯
  9. The lifting - line and lifting - surface design method, the harmonic analysis method based on the panel method, new section design ways, the effective operating curves are integrated into a whole design system of the unsteady propeller, the design system is effective and reliable by the design example, the model test and the application to the full scale ship

    本文把升力和升力面設計方法、基於面元法預報旋槳非定常性能的諧調分析方法,新剖面設計方法、有效運轉計算方法組合為一套完整的非均勻流場中旋槳設計計算系統,經實例設計和模型試驗及實船的應用,該設計系統是可靠且有效的。
  10. In this paper, penman does some study - works as follows : the experiments of sixty jointing pieces and stressed skin diaphragm. through the experiment date researching and analyzing, the " p ? " curve of the stressed skin diaphragm is presented ; the analysis of jointing pieces data. the calculate method of loading capacity and range of shear rigidity value, the linker ' s dependability coefficient and the importance factor of linker are presented ; the calculate method definiteness

    本文針對國內常用板型自攻絲連接的蒙皮體組合體做了整體試驗,進行了以下幾個方面的研究工作:進行了60個小試件的拉伸試驗和蒙皮組合體的整體試驗,記載了試驗的應力應變數據,研究了連接點的受力狀態以及構件連接點附近壓型鋼板的應力狀態,得出蒙皮組合體的p ?;小試件的拉伸試驗數據分析。
  11. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關管道流動和換熱特性的研究成果的基礎上,以旋轉正交坐標系統下的多參數旋轉旋管道中的對流傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋轉管道內充分發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。
  12. The application of oval curve in the grinding of spiral race

    橢圓旋滾道磨削加工中的應用
  13. Based on analysis of the iso - rigidity of the gyro assembly, the requirement for making the joints match each other is offered, which has a guiding significance for joints assembly and selection. based on analysis of rigidity and drift error for the dynamically tuned gyro, a cross model including an inner and an outer flexible hinges is established

    在對動力調諧陀剛度和漂移誤差分析的基礎上,建立了由內外撓性接頭裝配所形成的十字型鉸鏈模型,並利用偽剛度理論對該模型進行了分析,得出了內外撓性接頭兩鉸鏈的相對位置關系對十字型鉸鏈模型的影響
  14. This paper presents a design method of propeller blade section operating in non - uniform flow field and an idea of equivalent operating curve with unchanged cavitations characteristic on blade section, the method for selecting the curve is set up

    摘要給出了非均勻流場中旋槳槳葉剖面的設計方法,提出了保持剖面空泡特徵不變的等效運轉的思想,並創建了等效運轉的確定方法。
  15. The simulations get the variation curve of the torque acted on the helical gear spline during translating process, and get the important damping force acted on the middle part during engaging and disengaging process

    模擬還求得了作用在旋齒花鍵上的扭矩在動態過程中的變化;求得了作用在中間件上,起關鍵作用的阻尼力在嚙合、脫開中的動態變化
  16. This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance, and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver

    摘要用簡化的空間旋齒輪作無側隙嚙合傳動的原理,建立了求解內剃齒刀齒向的數學模型,並給出了修磨這種齒向的盤形砂輪的廓形計算方法。
  17. In this dissertation, researches on the flow in curved pipes of the last century are firstly reviewed and then a flow model in a rotating helical pipe with multi - parameters is introduced

    本文首先綜述了一個世紀以來有關管道流動的研究成果,並在前人文獻的基礎上,提出一種多參數旋轉旋管道流動模型。
  18. A model is erected for fs with logarithmic spiral sliding surface which can simulate the genuine sliding surface better than others, then the express of fs is deduced based on the upper bound theorem of limit analisis

    採用對實際滑裂面模擬較好的對數滑裂面,建立了整體穩定安全系數f _ c的模型,從極限分析中的上限理論推導了整體穩定安全系數f _ c的表達式。
  19. All experiments were completed by use of loading equipment designed by myself. this equipment has been proved to be efficient, steady and the test data are reliable. based on analysis of the 58 data and 35 domestic data, we got the s - n curve in general use, and established the design method of fatigue

    本文成功地得到了32個常幅及26個變幅試驗數據,通過與國內已有數據的回歸分析,得到了通用的s - n,建立了栓球節點網架結構的疲勞設計方法。
  20. Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally

    摘要基於土的塑性極限分析方法,以均質土坡為例,從土釘支護結構的準粘聚力理論出發,綜合考慮土體自重、坡頂的條形荷載,以及土釘與土體的相互作用的機理,推導出了土釘支護的臨界高度的上限值和潛在滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式,可供基抗支護設計參考。
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