three beam 中文意思是什麼

three beam 解釋
三射束
  • three : n. 1. 三個人[東西]。2. 三歲,三時。3. 【板球】3字型。
  • beam : n 1 梁,棟梁,桁條;(船的)橫梁。2 船幅;(動物、人的)體幅。3 (秤)桿,杠桿,(織機的)卷軸,...
  1. The paper is based on an arcuated built - up system bridge - zhongshan no. one bridge to be built in guangzhou, adopts the large universal finite element programme ansys, takes spatial action among members into account, establishes a three - dimension finite element model, and discusses the following several aspects : firstly, when three - dimensional finite model of a complicated bridge is founded, a beam - lattice method is a kind of applied and effective spatial analysis method, which is used to analyze superstructures of a bridge

    本文以廣州市中山一橋為背景,採用大型通用有限元程序ansys ,考慮構件間的空間相互作用,建立了三維的有限元模型,重點對以下幾個方面進行深入探討:首先,在對復雜的橋梁結構進行三維的有限元模型建立時,梁格法是分析橋樑上部結構比較實用而且有效的空間分析方法。
  2. Applying the information extracted from numerous hydrographic data of field trials collected by h / hcs - 017, the first set of multi - beam swath bathymeter developed in china, a series of mosaic techniques have been carefully studied in this thesis, including digital terrain model building, statistical error analyzing, hydrographic data mosaicking as well as tides correction and projection of the earth coordinates. finally, standard digital sea - charts and three dimensional seafloor images are successfully developed that are consistent with hydrographic surveying principles

    本文利用我國第一臺h hcs ? 017型條帶測深儀的測量數據進行拼圖技術的研究,主要研究的內容有:利用分帶原理對深度數據進行潮汐修正,得到瞬時海面的深度數據;對測深數據進行誤差分析處理,去除野值;將多波束數據進行坐標變換及投影轉換后構建數字地理模型,進而根據海道測量規范繪制標準海圖。
  3. To study the flexural behavior, ultimate bearing state and laws of internal force redistribution of prestressed concrete continuous beams cast by different construction methods, the model tests for three pieces of the continuous beams were carride out, in which three kinds of the construction methods, such as those of lowering formwork supports at one time, transferring simply - supported structure into the continuous one and casting the beam by cantilever construction, were considered

    摘要為研究不同施工方法下預應力混凝土連續梁的彎曲性能、極限受力狀態及內力重分佈規律,進行了3根連續梁模型試驗,分別考慮一次落架、簡支變連續和懸臂施工3種施工方法。
  4. Low, t. s., and guo, w., 1995, “ modeling of three - layer piezoelectric bimorph beam with hysteresis ”, ieee journal of microelectromechanical systems, 4, ( 4 ), pp. 230 - 237

    馮榮豐、楊竣翔、韓長富, 2003 , 」磁滯與摩擦力考慮的奈米定位」 ,物理雙月刊二十五券三期。
  5. Across the rigid - flexible coupling dynamic analysis, we acquired the coupled effects between the three - dimensional attitude motion of the satellite and the flexible vibration of the antenna ' s supporting beam, and got the dynamic behaviors of the system. and we found the change pattern of the antenna ' s structure parameters, which decide the system ' s connatural characteristic and its dynamic response

    通過對衛星?天線形成的剛柔耦合系統進行動力學分析,獲得了衛星的剛體運動與天線的彈性振動之間的耦合影響規律及其真實的動力學行為,得到了天線結構參數對衛星?天線系統的固有特性及其動力學響應的影響規律,為衛星姿態控制和天線結構優化設計奠定了基礎。
  6. Secondly, this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique. according to these theories, the coupling parameter of nearest neighbors was found by experiment, then the two - element and three - element aia array were designed, and the result of measurement was in agree with that of the nonlinear phase dynamic theory, and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements

    其次,本文討論了有源集成天線陣列的非線性相位動態理論以及它在功率合成和波束掃描方面的應用,包括同步工作條件、穩定條件和相位動態方程等,通過實驗確定了陣列中相鄰單元間耦合參數,並將之運用於有源集成天線二元陣和三元陣的設計,實驗結果與理論結果吻合較好。
  7. Three - dimensional photoelastic test of beam - arch joint of open spandrel rigid - frame arch bridge

    空腹式剛架拱橋梁拱節點三維光彈性試驗研究
  8. The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter

    本文首先從梁極限狀態下的變形入手,將塑性鉸區看作純彎段,將塑性鉸以外的區域看作剛體,按照體外預應力筋的形狀不同,分工程中最常見的三種體外結構形式,即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁,研究體外預應力筋變形和梁體的變形間的關系,推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式,並進一步求得梁的極限承載力。
  9. Typically, there are three kinds of different structures of micro - switch : cantilever beam, fixed - fixed beam ( air bridge ) and torsion beam, all of these are actuated by electrostatic force

    常見的開關結構有懸臂梁、空氣橋和扭轉擺三種,目前均採用靜電驅動方式。
  10. We can say that it can develop the usage of soil nailing wall fill the rank of piles disadvantage a bright future of developing and using. the development, application, advantage and disadvantage about the " prestress anchor ribbed beam support system " is introduced in chapter 1 : it " s supporting mechanism and structural feature is introduced and compared with the soil nailing walls and un - embedded rank of piles in chapter 2 ; design and computer steps and more details about the design methods of the support system are introduced in chapter 3 ; the two important parts named draperies and anchors are introduced on their construction technology in chapter 4 ; three foundation trenches " instances with different depth in different soil are showed in the last chapter 5

    本文在第一章概論部分介紹了「預應力錨桿肋梁支護結構」的發展、應用和優缺點;第二章分析其支護機理、結構特點,並與土釘墻和無嵌入排樁多錨支護進行了結構受力對比分析;第三章介紹該支護結構的設計計算方法步驟,詳細介紹了支護結構各部分的設計方法;第四章介紹預應力錨桿肋梁支護系統最重要的兩個部分:帷幕和錨桿的施工技術;第五章介紹了不同土層不同深度的有代表性的三個基坑工程實例。
  11. The paper studies three key problem of base station array antenna for mobile communication, controlled radiation pattern, beam width and passive intermodulation

    本文研究移動通信基站天線中的三個關鍵問題,波束賦形、波瓣寬度、無源交調。
  12. Abstract : the system, in the span - by - span construction of brid ge, willexperience three kinds of shifts from the state of simple beam to the continuous state, from overhanging beam to the continuous beam and from few - spans continuous beam to required degree span by span. meanwhile, structural calculatin g graphics and the internal force are changing with the three shifts

    文摘:在橋梁工程逐孔施工過程中,體系將發生由簡支梁狀態到連續梁狀態,由懸臂梁到連續梁,由少跨連續梁逐孔延伸到所要求的體系三種轉換,同時結構計算圖式和內力也發生變化。
  13. This paper presents a manufacture and calculating method for castellated beams. according to the method, three beams are designed and tested, the detailed and trustworthy experimental data are obtained. in comparison of the castellated beam with the circular hole castellated beams during the process, that the yield of load and the strength limit for the latter are higher than the former is verified

    本文通過設計製造兩種不同截面形式的3根蜂窩梁( 2根圓孔、 1根六邊形孔) ,進行了兩點集中荷載下的試驗,取得了較為翔實可靠的試驗數據,通過整理與分析,對兩種蜂窩梁的整體受力性能和承載力作出評價,得出圓孔蜂窩梁的屈服荷載和極限承載力都高於六邊形孔蜂窩梁的結論。
  14. According to the markov approximation under a long haul condition, we get the inter - correlation function, log - amplitude and phase covariance function. the thesis puts much emphasis on three phenomenon of the laser under the effects of turbulence, i. e., intensity fluctuation ( atmosphere glistening ), beam floating and extension, phase fluctuation

    重點介紹湍流作用下的激光的三種物理現象及其產生機理,即強度起伏(大氣閃爍) ,光束漂移和擴展,相位起伏和到達角起伏。
  15. According to these, applying the virtual work theory, this paper analyzed the influence of active beam link on the terminal carrying capacity, stiffness and ductibility of three types of ebsf

    接著在此基礎上應用虛功原理,分別研究了耗能梁段長度對d型、 k型和v型三種偏心支撐框架的極限承載力、剛度以及延性的影響。
  16. Similarly, according to the deformation mechanism of ebsf and the virtual work theory, the influence of three different active beam links on the terminal carrying capacity, stiffness and ductibility of ebsf is deducted

    同樣,根據偏心支撐框架的幾何變形機制,應用虛功原理,重點推導並分析比較了分別採用d型、 k型或者v型支撐時對結構的極限承載力、彈性剛度以及延性的不同影響。
  17. Beam emittance measurement with modified three gradient method

    用修正三梯度法測量束流發射度
  18. Therefore, the three fundamentals required to obtain high precise measurements are : 1 ) frequency stability and frequency difference stability of the double - frequency laser source as well as the stable equivalent length of bore ; 2 ) the measuring beam and the reference beam are placed very co - axially ; 3 ) capability of recording the sub - division of the period of phase change and a reversible counter system

    因而干涉儀系統達到高精度的基礎是:頻率及頻差穩定的雙頻激光源、穩定的等效腔長;測量光與參考光合光後有很高同軸度的光路結構;能可靠記錄相位差變化周期數的細分及可逆計數系統三部分。
  19. Three - beam guardrail for highway

    公路三波形梁鋼護欄
  20. The methods and systems ( including amplitude division double - beam interference system, three - beam interference system, liquid immersion type deep uv interference system and full automatic interference photolithographic system ) for amplitude division maskless laser interference photolithography are studied and compared

    研究和比較了振幅分割無掩模激光干涉光刻方法和系統,包括振幅分割雙光束干涉系統、三光束干涉系統、液浸式深紫外干涉系統及全自動干涉光刻系統。
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