beam constant 中文意思是什麼

beam constant 解釋
梁常數
  • 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，...
  • constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
  1. The beam has a constant flexural rigidity.

    該梁具有常數彎曲剛度。
  2. Considering the special structure of multi - ribbed slab, founding diphase body mechanical model of compound material, strengthening rib beam and rib pillar by equivalent volume ratio of concrete and slice brick, the paper drew elastic compution constant and shear constant. based on the things, the paper simplified isotropy compution model to wall, gave practical design formula of elastic mold and shear mold, provided necessary parameter for practical design formula of elastic rigidity. finally the calculating results agree well with the text results

    結合密肋復合墻板的特殊構造，建立墻板的復合材料二相體力學模型，按照混凝土與砌塊體積比不變原則對肋梁肋柱同時加強，得出墻板的彈性計算常數及剪切常數，在此基礎上，進一步將墻板簡化為各向同性的計算模型，給出墻板彈性模量及剪切模量實用計算公式，為密肋復合墻板的實用彈性剛度計算公式提供必要的參數。
  3. Based on the research to the stability variable cross - section beam, the bending defection differential equation of the variable cross - section beam in critical state of bucking is established. according to the edge condition of the structure, the differential equation is solved and bucking equation of variable cross - section beam is created. we can get the algorithm which can be used to calculate the equivalent inertia moment of the variable cross - section lattice structure when it is regarded as constant cross - section of solid web beam

    對變截面格構式構件的穩定性計算進行了初步的研究，通過建立變截面構件臨界狀態下彎曲變形的微分方程，根據變形邊界條件，得到了兩端鉸支的變截面梁失穩特徵方程，提出了幾種特殊形式的變截面格構式構件等效為等截面實腹式構件時等效慣性矩的計算方法。
  4. We present a charge - transport model of the photorefractive effect with two deep traps ( two deep - trap model ) based on one deep - trap model and shallow - deep - trap model. we also found dark decay behaviors which accord with the two deep - trap model in the two - beam interference experiments. the fast decay - time constant of the space - charge field is obtained as 714s

    此外，在ce ： batio _ 3雙光束干涉光折變光柵的暗衰減實驗中，也觀察到了符合雙deep模型的衰減現象，得到光折變空間電場快衰減時間常數714s ，約12分鐘。
  5. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。
  6. Wp = 6 > the practical table is compiled that integral stability coefficient of homemade rolled h - section steel beam under constant moment

    編制了等端彎矩作用下軋制h型鋼梁式構件的整體穩定系數表，可供工程設計參考。
  7. When the axial speed varies harmonically about a constant mean one, the method of multiple scales is applied to the axially moving beam to determine the instability boundary due to parametric resonance

    當軸向運動速度在其常平均值附近作簡諧波動時，應用多尺度法給出軸向變速運動梁參數共振時的不穩定條件。
  8. In order to predict high - strength bolts pretension and contact - friction in contact zone, status nonlinear in contact zone is adopted in fem model. the computation and analysis on the behavior of beam - to - column rigidity joints subjected to constant axial pressure on the top of column and cyclical load at tip of beam is carried out

    實體模型的建立，考慮了接觸區的狀態非線性，以模擬高強螺栓的預拉力、螺栓連接區的摩擦接觸，對承受軸力的樑柱剛性連接方式在循環荷載作用下的滯回性能進行了計算分析。
  9. Under our task experimental condition, we calculated the sensitivity of our planning to develop dial system with direct detection, besides, we studied the relationship between the sensitivity of measurement and atmospheric refractive - index structure constant and applied matlab program simulated the system parameters such as beam diameter, laser divergence angle, detection distance and gained relevant relationship curves

    在課題實驗條件下，模擬計算了直接檢測dial系統的測量靈敏度。在考慮大氣折射率結構常數對系統測量靈敏度影響的基礎上，並對各種系統參數如光束半徑、束散角和探測距離對測量靈敏度的影響運用matlab程序做了模擬計算，為合理選擇系統設計參數提供了依據。
  10. The condition under which higher - order dispersive effects can be neglected is also discussed with numerical examples. 6. based on the fourier optics, the focusing of ultrashort pulses by a silica lens in both cases of constant beam waist and constant diffraction length is studied considering dispersion of first, second and higher order, respectively

    6 ，使用傅立葉積分變換法，在考慮透鏡色差和高階色散效應的較為一般情況下，分別研究了等束寬超短脈沖高斯光束和等衍射長度超短脈沖高斯光束通過硅玻璃透鏡的聚焦特性。
  11. Constant section beam

    等截面梁
  12. In elementary beam bending theory, it is assumed that the stresses are constant through the width of the beam. however, for the wide flange girders, the stresses are not uniform

    按照初等梁理論即假定翼緣板具有無限抗剪剛度，寬翼緣箱梁在荷載作用下翼緣的正應力沿著寬度方向上是均勻分佈的。
  13. First of all, the paper carried out test study on four two - spanned model members of fsmrcwb, including three 1 / 2 - scaled two - storeyed models and one 1 / 3 - scaled three - storeyed model. the study considered such factors as span ratio - l1 / l2, height - span ratio - hb / l of the beam, and cavity etc. the paper analyzed the test results, including analysis on mechanical property of the composite wall beam under vertical loads, and failure mode, deformation capacity, aseismic performance under horizontal loads and constant vertical loads

    首先，進行了三個兩跨兩層和一個兩跨三層的框支密肋復合墻梁的模型試件試驗研究，主要內容包括：框支密肋復合墻梁在豎向荷載作用下的受力性能，在豎向荷載與水平低周反復荷載共同作用下的受力性能、變形性能、滯回性能和破壞形態，並將框支密肋復合墻梁試驗與框支砌體墻梁試驗進行對比分析。
  14. Based on the series of problems of the practical beam unit dragging system, an excellent energy conservation method is proposed in this paper, i. e. the slip frequency is kept constant in variable frequency system. and a digital spwm generator is adopted to put this control method into practice

    針對實際游梁式抽油機拖動系統存在的一系列問題，提出了一種優良的節能方案? ?轉差頻率恆定的變頻調速系統，並用一種數字式spwm發生器來實現該控制方案。
  15. The constant beam - width beam - former and wideband doa estimation algorithms are realized in the dsp hardware systems

    完成了恆定束寬波束形成以及寬帶源方位估計演算法在dsp硬體系統中的實現。
  16. A scheme is proposed to derive natural frequencies and modal functions of a beam under the given boundary conditions and moving axially at a constant speed

    提出在給定邊界條件下確定一勻速運動梁固有頻率和模態函數的方法。
  17. For single lens, the change of beam quality lead to the varity of dimension and positions of spot of focused nd : yag laser. a telescopic system can produce constant dimension and position of beam waist

    激光光束質量的變化導致了單透鏡的聚焦光束的束腰大小和束腰位置都發生變化，採用望遠鏡耦合系統可以得到大小和位置都不變的像方束腰。
  18. Here a scheme to implement broad - band constant beamwidth digital beam - former has been presented. the results of computer simulation show the scheme is effective

    本文給出了一種寬帶恆定束寬數字波束形成器的實現方案，計算機模擬結果表明了該方案的有效性。
  19. Aiming at the practical applications on engineering, the dissertation studies the theories and application technologies of constant beam - width beam - former and doa estimation for wideband signals. the main results and achievements are summarized as follows : 1

    論文從實際工程應用的角度出發，系統研究了恆定束寬波束形成和寬帶高分辨陣列信號處理的相關理論和實現技術，主要研究內容包括： 1
  20. The work presented in this paper is carrying out to the theory research of dbf. the work includes : research of dbf algorithms, dbf antenna system composition and realization. the application of dbf algorithms used in high frequency ground wave radar for near ocean inspection and ocean situation remote sensor is also presented. at last, we give a effective scheme to implement broad - band constant beamwidth digital beam - former

    本文的主要工作是圍繞數字波束形成技術的理論研究，內容包括：數字波束形成演算法的研究，數字波束形成天線的系統構成和實現，以及將數字波束形成演算法應用於高頻地波雷達近海監測和海態遙感，最後給出了一種寬帶恆定束寬數字波束形成器的設計方案。
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