有效載荷單元 的英文怎麼說

中文拼音 [yǒuxiàozǎihédānyuán]
有效載荷單元 英文
pu payload unit
  • 有 : 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
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 荷 : 荷名詞（蓮） lotus
  • 有效 : effective; valid; efficacious
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports

    首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
  2. Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change

    基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。
  3. This paper presents the element stiffness matrix and equivalent node force of the variable cross - section bar. so the approximation in structural analysis is avoided, and the calculation capacity of equivalent frame method is also developed. this helped the engineers avoid the fem, which consume much time and is difficult to master

    本文對板帶寬度變化的板柱結構推導了變截面直桿單元的單元剛度矩陣和等效結點荷載列陣，避免了在結構分析時所作的近似，也擴大了等代框架法的計算范圍，使工程技術人員免於使用佔用機時、難于掌握的有限元分析法。
  4. Analysis system for bridge test ( qljc in chinese ) is an application software specially designed for bridge test to build spatial fem model of bridge structure with beam elements or solid elements, analyze the static and dynamic character of bridge structures, calculate efficiency ratio of load test, pick up the results of observation points and so on

    摘要橋梁結構檢測分析系統qljc是針對橋梁檢測試驗分析開發的專用軟體，能夠建立橋梁結構空間有限元模型，運用實體單元法和空間梁格法進行靜動力試驗分析、試驗荷載效率計算，查取測點位置理論計算值等。
  5. Compared with the traditional numerical method, the numerical manifold method need not calculate the released load on excavation face, need not prepare special element for unloaded material part ; simple mathematic grid can meet the arbitrary course of excavation ; so it is more convenient and effective ; at the same time, high - order manifold method has better precision for excavation

    相對于傳統數值方法，數值流形方法在模擬開挖時不用計算開挖面上的釋放荷載，不用為卸除的材料部分準備專門的單元，簡單的數學網格可以適應任意的開挖過程，使其對開挖的模擬更加簡便和有效，同時高階的流形方法對開挖問題具有較高的求解精度。
  6. 2. based on the muller - breslau principle, formulars of equivalent nodal loads for the curved - and straight - beam element while occuring unit relative constrained displacement have been deduced. the influence surface of the internal force for grillage has been analyzed by combining kinematic method with finite element static method, using the superposition principle applied to little deformation

    根據米勒-布雷斯勞原理，推導了曲梁、直梁截面發生單位強迫相對位移時的等效結點荷載計算公式，運用小變形的疊加原理，將梁格機動分析與梁格有限元靜力分析相結合建立了內力影響面。
  7. Starting from the effect of group piles in the composite foundation, the size effect in the load test of large area composite foundation, composite foundation of single row piles and composite foundation of double rows piles are researched through fem analysis

    本文從復合地基具有群樁效應現象入手，利用有限元來研究大面積復合地基、單排群樁復合地基、雙排群樁復合地基荷載試驗的尺寸效應問題，並用現場荷載試驗實例來驗證本文分析方法的可行性。
  8. After comparing between the finite - element analysis and experimental results, the author verified the fem. then according to the chinese code, the nonlinear finite model of the beam - to - column is established which are made of different size components. the responses of beam - to - column web moment connections which are made of different size components are compared and analyzed from three facets, and the conclusions about the joints behavior are drawn : thicken the connection plate, lengthen the connection plate or use a back - up stiffer can improve the connection behavior, consist of improving the behavior of load - supported and reducing the stress convergence in the flange moment plates

    本文根據我國規范的有關規定，自行建立了12個不同構件尺寸的樑柱腹板連接的三維有限元模型，對不同構件尺寸的樑柱腹板剛性連接節點在單向荷載作用下的反應進行了研究，從結構的mises應力等值線示意圖、梁端加載處的荷載? ?位移曲線、翼緣連接板兩端的mises等效應力以及翼緣連接板與柱相連接的三邊的mises應力等值線示意圖四方面進行了比較與分析，從而得出了不同構件尺寸的樑柱腹板剛性連接的在受力行為上的結論：增加翼緣連接板的厚度、增加翼緣連接板的長度以及採用柱的橫向加勁肋均可以改善節點的受力性能：提高節點的承載能力；減小翼緣連接板內部與柱翼緣邊的的應力不均勻現象，從而避免試件過早地發生破壞。
  9. Secondly, considering the complexity of the analysis of inclined - loading pile, nonlinear finite element method is adopted to calculate the internal force and displacement of pile group under inclined loads, with the concept of equivalent width presented to simplify 3d problems into 2d problems. and a program is developed as well, which is able to consider the continuity, elastic - plasticity and layered characteristic of soil around the pile shaft. besides, the interactions among pile, base slab and soil are considered in this program and contact surface element is used to simulate slipping and crazing between pile and soil, or between base slab and soil under loads. then, the non - tension analysis is proposed, to reflect the low - tensile property of soil and concrete

    在此基礎上，針對傾斜荷載下群樁基礎分析中的復雜性，提出採用非線性有限元對傾斜荷載下群樁的內力及位移進行分析，應用樁的等效寬度概念將空間問題簡化為平面問題考慮，並開發出能考慮樁周土介質連續性、彈塑性、分層性等因素的傾斜荷載下群樁內力及位移分析的計算機程序，並在程序中考慮了樁、土、承臺的相互作用，提出了採用接觸面單元來考慮荷載作用下樁與土體及承臺與土體間的滑移、開裂；並在此基礎上，提出了傾斜荷載下群樁基礎的「無拉力」分析方法，可有效地反映土體及混凝土材料的低抗拉特性。
  10. The node force corresponding to damp was used to control the mesh distortion. numerical studies show that the method proposed by this paper can successfully control the severe distortion of mesh and retain the density of elements during the membrane form - finding when the damp viscosity coefficient is in a limited scale. especially this method can avoid the sparseness of mesh in the location of lower curvature and have good convergence characteristic

    同時針對找形分析中的動力鬆弛格式，本文提出了全新的控制網格變形的動力鬆弛法，此方法能夠有效地解決膜結構找形分析中網格的大變形問題，克服了在曲率較小處網格過于稀疏的缺陷，在曲率較小處保證了單元的密度和初始構形的精度，並且收斂性較好，為準確進行荷載分析和裁剪分析奠定了基礎。
  11. Aimed to the two deficiencies of three - ring gear transmission, the dissertation will analyze these two aspects. the first, according to the finite element model of gear pair of three - ring gear reducer, the dissertation is aimed to analyze the multi - tooth meshing effect of three - ring gear reducer using finite element method, and the number of teeth contacted simultaneously, their load distribution characteristics and the von mises stress change are gained

    針對三環減速器以上兩點的不足之處，本文將對以下兩方面進行分析:首先，本文以三環減速器齒輪副有限元模型為研究對象，利用有限單元法對三環減速器多齒嚙合效應進行分析，得到三環減速器傳動時的實際接觸齒數、嚙合齒載荷分配以及vonmises應力變化規律。
  12. Which often produces some unexpected problems, such as prolonging time limit of project, increasing engineering quantities and cost, etc. through test on the site, dynamic value analysis, finite element unit method, the paper researchs construction technology of in - situ pile, transfer theory, thickness of supporting layer of head slab and depth of pile in karst area, provides some important conclusions, directs effectively the design and construction of this kind of projects

    但因溶洞的分佈規律性差，現有勘探手段難於事先查明它的準確位置及大小，因而常常給施工帶來意想不到的問題：工期延長、工程量增加及工程費用增加等。本文通過現場試驗、理論計算和有限單元分析，對巖溶地區鉆孔灌注樁的施工工藝、荷載傳遞機理、持力層頂板厚度及嵌巖深度等方面進行了較為系統的研究，得出了一些重要結論，有效地指導了該類工程的設計和施工。
  13. Secondly, by using the great fem programme, analyzes the mechanism of bearing and deformation of rigid - soften composite piles foundation. draw a conclusion : exist a specific value, when the number of the rigid pile less than it, increase the number of the rigid pile, effect of reducing the settlement of rigid - soften composite piles foundation is distinct, on the contrary, when the number of the rigid pile more than it, increase the number of the rigid pile, effect of reducing the settlement of rigid - soften composite piles foundation is indistinct. finally, analyze and sum up some important design ' s constitutes of the rigid - soften composite piles foundation

    其次，採用有限元計算程序，對剛柔復合樁基進行了三維有限元分析，考察了在不同荷載水平下，不同剛柔性樁比例的情況下，復合地基的平均沉降量、土體的沉降等值線和應力等值線以及剛性樁和柔性樁樁頂荷載比值隨不同基礎荷載水平的變化規律，得出了一些具有實際指導意義的結論：當總樁數不變，長樁比例增加到一定程度時，再增加剛性長樁的數量對地基整體沉降幾乎沒有什麼效果；剛柔樁分佈一定，柔性樁實際承載力小於其極限承載力時，外加荷載的增加，剛性單樁和柔性單樁所承當荷載的比值基本不變。
  14. Based on the biot ' s effective stress theory, and with the method of numerical value experiment, the thesis has studied the microcosmic mechanism of affecting the effective stress coefficient, i. e the microcosmic mechanism of effective stress law by using the elasticity distortion ' s simulating software which is compiled with the method of finite elements. it has been done from the two aspects of affecting the elasticity distortion of rock comprising the insides causation which is the existing configuration of hole and cranny in rock and the outsides causation include the outside pressure and the liquid pressure inside the rock

    本文基於比奧的有效應力原理，利用有限單元法的彈性變形模擬軟體，通過數值實驗的方法，從影響巖石變形的內、外兩方面的因素?即內在孔隙裂隙賦存形態和其所受的外載荷及孔隙流體壓力出發，研究了影響有效應力系數變化的細觀機理，即有效應力規律的細觀機理。
  15. Several numerical results of elastic restrainted thin - walled members involving bending, torsional, and flexural - torsional elastic buckling failure modes are presented to demonstrate the accuracy, efficiency, and versatility of the method. comparisons with published analjtical and semi - anaiftical solutions are made using some of the obtained results

    對彈性約束下軸心受壓構件、受彎構件和壓彎構件的算例表明，用本文推導的單元剛度矩陣計算約束條件下薄壁構件的臨界荷載準確、有效，具有通用性。
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