立有圓柱的 的英文怎麼說

中文拼音 [yǒuyuánzhùde]
立有圓柱的 英文
columned
  • : 動1 (站) stand; remain in an erect position 2 (使豎立; 使物件的上端向上) erect; stand; set up...
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : 4次方是 The fourth power of 2 is direction
  1. A model of the capsulated antenna is presented and simulations are conducted according to different numerical values of parameters involving capsulation dimensions and dielectric constant

    了帶形介質封裝天線模型,針對介質厚度、內徑和介電常數三個封裝參數不同取值組合進行了大量模擬。
  2. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄連桿、游梁式沖擊機構,使鉆機具兩種沖擊功能;正常鉆進以連桿沖擊為主,遇到特殊情況,用連桿沖擊不能鉆進時,可轉為卷揚沖擊,沖程可調,因連桿沖擊機構連續工作,所以實現了自動沖擊鉆進,可提高鉆進效率,減輕勞動強度;採用泵吸反循環方式排渣,既能效解決卵礫石地層、堅硬地層等特殊地層鉆進困難,又很好地解決了沖擊鉆機效率低下問題;採用直齒齒輪差速機構作為主卷揚雙筒同步機構,既保證了鉆具處于平衡狀態,又大大簡化了該機構設計,降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起,減少了輔助作業時間。
  3. A ' method of analyzing the stresses of the lining of fiber enlaced composite cylindrical shell under internal pressure is raised through building the theory equation with putting the ring shaped stiffener on the point of enlancing fiber. the result is good fit with the traditional finite element analyzing system

    並結合對承受內壓纖維纏繞復合材料殼進行了分析,通過建理論方程提出了把加強環點建在纖維纏繞處分析殼內襯應力應變方法,計算結果與傳統限元分析系統計算結果相吻合。
  4. The test shows that nominal transverse splitting strength of concrete cylinder is well correlated to the concrete cube strength and splitting strength of cube and cylinder, especially, above interrelation is more ideal when hold - down central angle is 90

    經試驗證明,混凝土橫劈名義強度與混凝土抗壓強度、方體及體縱劈強度很好相關性,尤其當壓具心角為90時,上述關系更為理想。
  5. Solid model of the involute worm gearing solid model with drive ratio 1 / 50 is built by using ideas - 5. 0, then the elastic contact analysis is proceeded on the basis of contact fem. the dynamic evolution image of the area of the contact zone, the load sharing among instantaneous meshing tooth pairs, the distribution of the contact force, and tooth stress are obtained. 3

    通過漸開線蝸桿、蝸輪齒面方程式,利用ideas - 5 . 0軟體建了傳動比為1 / 50漸開線蝸桿傳動實體幾何模型,在此基礎上應用接觸限元方法對該傳動進行了彈性接觸分析,包括接觸區形狀、位置、載荷在瞬時嚙合齒對分配狀況; 3
  6. Disk chuck has been adopted in 74 series vertical shaft rotary die grinders, which can grind to the internal hole, excircle of large workpieces and workpieces with shoulders. die can work and grind to r - arc without removing guede - pole, and grinder head can rotate in the range from + 45o to - 45o. accordingly, the life of die is longer than before and accuracy of the die is stable

    74系列臺模具磨床採用花盤式工作臺,可對較大工件內孔、外和帶臺肩工件進行磨削,沖模模具可以不拆導向進行磨削及r弧磨削,提高模具使用壽命,保證模具使用精度,磨頭可旋轉45 。
  7. Abstract : in this paper, the kinematically admissible velocity fields are established by using the metal flow patterns based on the experiments, and the configuration dimensions of billet and the curves of load - stroke in precision forging process for spur gear from solid billet are simulated on computer by upper bound method. the results acquired in the simulation are in good agreement with those obtained in the experiments

    文摘:本文利用實驗根據變形流動模式建動可容速度場,利用上限法模擬用實心坯料精鍛直齒齒輪時坯料外形尺寸變化和力?行程曲線,所得結果與實驗測定值很一致,可供沖擠精鍛工藝設計參考。
  8. With vrml techniques, the process of co - rotating twin - screw machining is simulated based on the theory of machining with milling cutter, and the machining simulation theory and its key techniques are discussed. the mathematic model and computation are proved correct and feasible through cutting experiment and the model is now applied in practice

    該方法和技術可以支持同向雙螺桿螺旋面加工刀具優選。並在用銑刀加工同向雙螺桿理論基礎上,利用vrml技術,對加工過程及其理論誤差進行了模擬,討論了模擬加工原理和關鍵技術。
  9. The main works are shown as followings : in order to get best economic benefits and quickest time response, the advantages and shortages of existing methods for machining twin - screws are analyzed. in view of the production of co - rotating twin - screw is various and mostly in small batch, a new approach for forming cylinder helical surface with milling cutter is put forward. it presents the theoretical foundation for machining of twin - screw

    論文主要工作如下幾點:針對同向雙螺桿產品零件多品種、小批量生產特點,為了取得最佳經濟效益和快速地時間響應,在查閱了雙螺桿加工國內外文獻資料,研究分析了雙螺桿各種現加工方法優缺點,提出了一種新加工方法? ?用銑刀成形加工雙螺桿螺旋面。
  10. In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results

    本工作以矢量場模型出發,對具誘人應用前景形垂直腔面發射結構( vcsel )微腔半導體激光器( mcsl )進行了理論分析,建了用於分析方形和形結構具氧化孔徑層激光器模式特性理論模型;對形結構情況進行了數值模擬,得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率詳細變化規律;為使理論計算更接近實際,將外加金屬包殼視為非理想導體,或將金屬包殼與激光器結構隔開,分別對這兩種情況下結果進行了討論。
  11. Wafangdian electric bearing production co., ltd. boasts sophisticated bearing processing equipments, the powerful technical force, excellent production equipments, advanced technological level and complete detection means and is capable of independently undertaking the manufacture of deep grove ball bearing, self - aligning ball bearing, cylindrical roller bearing, ? self - aligning roller bearing, angular - contact ball bearing, tapered roller bearing, thrust ball bearing and thrust roller bearing as well as non - standard bearings and revolving supporting bearing, with the production scope ranging from the internal diameter of 50mm to the external one 3000mm and the precision class ranging from p0p5

    瓦房店電力軸承製造限公司具先進軸承加工設備技術力量雄厚生產設備精良工藝水平先進檢測手段全,能獨承製深溝球軸承調心球軸承滾子軸承調心滾子軸承角接觸球軸承錐滾子軸承推力球軸承推力滾子軸承及非標準軸承和回轉支承軸承。
  12. Below are the work and results of the dissertation : 1. analytical solution to the eddy - current transducer with ferrite core according to the practical eddy - current transducer used in eddy - current not, the analytical model described by a solenoid coil with a coaxial cylindrical ferrite core of finite length " is established

    論文主要工作和結論概括如下:一、渦流傳感器電磁場解析解根據渦流無損檢測中實際使用放置式線圈傳感器,建了含共軸限長磁芯通電線圈電磁場分析模型。
  13. Thirdly, the spatial cylindrical helix is approximated by rational triangular bezier curve in cylindrical coordinate system

    再次,建坐標系,給出螺線三角理b zier表示。
  14. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發,建了笛卡兒坐標下無源空間中均勻無耗媒質fdtd基本方程和坐標下無源空間中均勻無耗媒質fdtd基本方程,詳細討論了fdtd法計算中時間步長和空間步長選取原則以及激勵源類型和設置;推導了mur一階和二階邊界條件在坐標下差分格式;給出了在用fdtd法計算天線遠場輻射特性時必需採用頻域和時域近場遠場變換技術;最後用fdtd法計算了平面微帶縫隙天線、面共形微帶縫隙天線和面共形微帶層疊天線輸入阻抗和遠區輻射場,並分析了天線一些參數變化對天線輸入阻抗影響,得出了一些結論。
  15. To study the acoustic unsteady combustion of srm, built the acoustic model of chamber. deduced the little amplitude sound wave 3d equation, used the finite volume discrete method to simulate. got the vibration model of three kinds of chamber

    為研究固體火箭發動機聲不穩定燃燒特性,建了燃燒室內聲學特性分析物理數學模型,推導了小振幅聲波三維波動方程,採用限體積離散方法進行模擬,得到型、四片翼彤和五片翼型藥三種燃燒室形狀聲學振動基本模態
  16. Therefore the method and the equation developed in this paper to compute maximum scour depth is applicable and provides a reliable and convenient way to access maximum scour depth in engineering

    該公式與現公式比較,概念清晰、型式簡單,採用該公式計算大尺度直建築物基底最大沖刷深度可給出令人滿意結果,可供實際工程中估算最大沖刷深度。
  17. Larger loading capacity under the same specification ; easily establishing lubricant oil film, smaller friction coefficient, higher transmission efficiency, saving energy ; highest accuracy up to grade 3 of din standard ; smoother functioning, lower noisiness and longer service life

    平麵包絡環面蝸桿與普通蝸桿傳動相比具更大承載能力,易於建動壓油膜摩擦系數小,傳動效率高節省能源具可磨削性,能達到din標準三級,面粗糙度優于ra0 . 4而且具運行平穩噪音低壽命長等優點。
  18. It shows that when wave propagates along axis direction, the displacements of radial, axis direction and the change of electric field are coupling each other, and there is dispersing phenomenon, and the displacement of circle direction can figure out independently, it has not dispersing phenomenon

    發現當波沿著殼體軸向傳播時,物質徑向運動軸向運動和電勢變化相互耦合,伴頻散現象但是扭轉運動可以獨表示,並且同電場無關,無頻散現象。
  19. This paper presents a new method to calculate temperature distribution of axisymetical body when both an initial temperature distribution is available and an environmental temperature is constantly changing, which is based on traditional transient heat conduction. a mathematical model for this new method has been established and is used to calculate the temperature field of the rotor

    根據傳熱學基本理論建了初始溫度分佈已知,環境溫度不斷變化時,體溫度場理論計算近似方法,作為轉子溫度場計算理論基礎,建了溫度計算模型,同時通過使用ansys限元分析軟體對建數學模型進行了校驗,達到了比較滿意結果。
  20. The calculating mold consisted of shell, pyramidal neck of shell with varied thickness, flange of ring with definite thickness for analytic solution is set up for the strength calculation and the design of the structure dimension of shell flange and pyramidal neck. this theoretic solution is compared with the results of finite element analysis and stress - strain measurement and is verified to be right

    為設計計算烘缸法蘭及錐頸強度與結構尺寸要求,建以簡體、具斜面變厚度錐頸及具一定厚度法蘭環為解析解計算模型,進行應力求解,將該理論解與限元分析及應力應變實測結果進行分析對比,驗證該解結果正確性。
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