迭梁 的英文怎麼說

中文拼音 [diěliáng]
迭梁 英文
dam beam
  • : Ⅰ動詞(輪流; 替換) alternate; change Ⅱ副詞1 (屢次) repeatedly; again and again 2 (及) in tim...
  • : 名詞1 (屋架中架在柱子上的長木) beam 2 (通常也指檁) purlin 3 (橋) bridge4 (物體中間條狀隆起...
  1. A new numerical procedure for analyzing the coupled vibration of a framed arch bridge with a single moving vehicle is presented to solve the equations of motion of a bridge with many degrees of freedom. the procedure consists in dividing the bridge - vehicle systems, which are solved separately, into 2 subsystems at the interface of the bridge and vehicle. the compatibility at the interface is obtained by an iterative procedure with aitken acceleration

    本文提出新的計算橋車激振動反應的方法,車?橋系統被分成兩個相互作用的子系統,這兩個子系統通過接觸點的協調條件耦合在一起,從而應用aiken動態加速法對橋運動方程、車輛運動方程和車?橋耦合方程進行高效代求解。
  2. And gave priority to the eular - bernonulli beam model, the simply and convenient analytical resolution for the response of the pipelines under dynamical traffic loads through the impulse function and the congruence method of the vibration form and so on. during the analysis of the chanmical results of the pipelines, the randomicity of the output of the pipelines response was taken into accout. so the stochastic process method was applied to describe the probability characters of the pipelines response, which made the results truer, more veracious

    本文採用eular - bernonulli模型和tomosimko模型對動力下kelvin粘彈性地基中管道固有振動性狀進行了分析,提出了各力學結果描述的解析式;並以eular - bernonulli模型為主,基於脈沖函數、振型加法等對管道在動力交通荷載作用下的管道響應問題提出簡單便捷的解析演算法;在管道受力結果的分析中,考慮管道響應輸出的隨機性,將管道響應用隨機過程來描述其概率特徵,使得結果描述更加真實準確。
  3. Consequently, on the basis of non - winkler foundation model, a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province, which the continuity of soil mass can be accounted for under various boundary conditions, different loadings and irregular beam characters

    本文結合湖南省自然科學基金項目「樁基承臺優化設計理論與方法研究」 ,針對非文克爾地基(半空間、線性變形層或單向壓縮層地基模型等)上的樁基承臺,提出一種利用地基柔度矩陣來進行代的有限單元法,可充分考慮下土體的連續性,並對基礎與土體脫開、承臺截面變化、體邊界條件復雜、上部荷載類型變化以及下基樁承載力差異等情況進行分析計算。
  4. These geometric nonlinear behaviors such as the sag of inclined cables caused by their own dead weight, the interaction of large bending moment and axial forces in girders and towers, and the large displacement effects are considered during calculation. newton - raphson method and the displacement convergence norm are used to approach the solution iteratively

    計算過程中計及了拉索的垂度效應,彎矩和軸力對主和主塔的組合效應以及結構的大變形效應等幾何非線性影響因素,採用newton - raphson方法和位移收斂準則進行代求解。
  5. Secondly the author ' s study are introduced in this paper. the author study mainly the linear static and dynamic, elastic - plastic static and dynamic problems of cfst arc - bridge. firstly, the author establish the linear static equation on the based of the rigid equation of element by qr - method, and then analysis the inner force of arc bridge, establish the linear dynamic equation and elastic - plastic rigid equation and dynamic equation, then solve respectively the elastic - plastic rigid and dynamic equation by the method of repeated increment and no limit stabilization, arithmetic

    本文主要研究大跨度鋼管混凝土桁架拱線性靜力問題和線性動力問題以及彈塑性靜力問題和彈塑性動力問題,先利用qr法按照單元的剛度方程建立桁架拱的線性靜力方程,進行桁架拱內力分析,建立桁架拱線性動力方程、彈塑性剛度方程及彈塑性動力方程,然後利用增量代法及樣條無條件穩定演算法分別求解彈塑性剛度方程及動力方程。
  6. Theoretical analysis of shear stress redistribution in sfrc composite beams

    鋼纖維混凝土截面剪應力分佈規律理論分析
  7. Shear strength at primary and secondary beam nodes of preformed holes of composite frame structure

    合框架結構預留洞口主次節點的抗剪性能
  8. One self - anchored suspension bridge is the subject investigated, the finite element program " midas " is adopted to establish the spatial computation model of the suspension bridge, and the subspace iteration method is used to calculate the natural vibration frequencies and modes of the bridge, the bridge ' s dynamic property and rigidity feature are discussed with the computed results

    摘要以某自錨式懸索橋主橋為研究對象,採用midas有限元程序,建立了該橋的空間力學計算模型,利用子空間代法計算了該橋結構的自振頻率和振型,結合計算結果對橋的動力特性和剛度特點進行了討論。
  9. Three circumstances on the geometric non - linear analysis are considered : the sag phenomenon of cables the nonlinear behavior of bending members and the geometry change due to large displacement. the non - linear behavior of cables is verified by introduced the ernst cable modulus of elasticity and cr formation is applied to analyze the non - linear of beams. an incremental - iterative method based on the newton - raphson method is adopted here to solve the non - behavior equations

    幾何非線性分析主要考慮三個方面:索的垂度效應、樑柱效應和結構大位移,其中:索的非線性分析採用ernst彈性模量對索材料的彈性模量進行修正,計及索的垂度效應的方法;單元的非線性分析採用cr列式法,計算中採用基於newton - raphson法的增量代方法求解非線性方程組。
  10. In the analysis, a cfst arch ( single tube ) is first divided into a finite number of straight beam elements. according to the virtual work principle and the modified newton - raphson iteration method the tangent stiffness matrix considering double nonlinear properties is established. with regard to the non - equilibrium forces, the material nonlinear property along the height of the section and the length of the element is considered and the computation accuracy is improved as a result

    本文首先將拱肋劃分為一系列的直單元,運用虛功原理和修正newton - raphan數值代演算法的基本原理準確推導了拱肋直單元的非線性切線剛度矩陣;在不平衡力方面考慮了沿截面高度和單元長度方向材料非線性的發展過程,提高了計算精度;再根據得到的切線剛度矩陣採用荷載增量步內修正newton - raphan代的增量代法進行了求解。
  11. During segmentation of the bridge image, this paper synthetically thinks over the advantages of self - adapted selection threshold and iterative selection threshold, and presents own self - adapted iterative selection threshold. what ' s more the variance of the infrared image is neatly applied to the visible image. at the time of beeline extraction, this paper mends hough transformation, and use novel method, which reasons the information gamed from the transformation field into the image field, to eliminate the inability to locate beeline of hough transformation

    做橋識別,進行圖像分割的時候,本文結合了自適應閾值選擇演算法與代閾值選擇演算法的優點,提出了自適應代閾值選擇演算法,同時把紅外圖像中的方差圖引入到可見光圖像的處理中;在圖像中提取直線的時候,對hough變換進行了一些改進,同時針對其不能定位的缺點,使用了把變換域得到的信息反推到圖像域的方法,解決了這個問題。
  12. At last, the force vibration of the model is discussed by the method of principal mode superposition

    用主振型加法簡單討論了彈性支承交叉系的強迫振動。
  13. Thirdly, subspace iterative method is adopted in the paper, and natural periods and modes of preceding fifteen steps of zhongshan no. one bridge are solved, dynamic characteristics of this kind of structural system are obtained, inherent link between dynamic characteristics and structural rigidity is discussed deep, the viewpoint is provided that dynamic characteristics of a structure are considered as important basis whether structural scheme is rational ; in addition, the author brings out some own views and opinions about calculational methods of prestress value of different sorts of tie rods, simulation of local rigidity region, foundation of a local finite element model of a node

    另外,提出在施工階段中某些構件的應力有可能比成橋狀態的應力還大,需防止在施工狀態中構件因強度不足而破壞;再次,採用于空間代法,求解了拱式組合體系橋的自振周期和振型,得出該種結構體系的動力特性,深入探討了動力特性和結構剛度之間的內在聯系,提出了把結構的動力特性作為判斷結構方案是否合理的重要依據。此外,本文還就系桿預應力值的確定方法、局部剛度區域的模擬、節點局部有限元分析提出了作者的見解和看法,對解決類似問題得出了一些有參考意義的結論。
  14. The result demonstrates that the algorithm of mixed iterative learning control can suppress the vibration of the model by 15 %

    模擬及試驗結果均表明:代學習控制演算法在對懸臂的振動抑制上具有良好的效果。
  15. Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then , a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable , in conventional analysis and design of steel structures , it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design , but cannot precisely reflect structural practical circumstance and the errors of calculating results are large , even , get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 , 10 ) , however , it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper , at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring , base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally, a program for calculating semi - rigid with incremental - iterative method has been

    本文的目的就是為半剛性連接鋼框架的設計提供一種既符合工程實際又簡便易行的計算方法,供規范使用過程的補充、延伸或參考;同時,也將促進半剛性連接鋼框架設計技術的發展,為提高結構安全性能、節省工程成本發揮應有的作用。本文首先介紹了常見的幾種應用較為廣泛的樑柱連接彎矩轉角關系模型,在分析比較的基礎上,選用richard ? abbott函數模型作為外伸端板連接彎矩轉角關系模型,通過對34個外伸端板連接的實驗數據與回歸分析得到的參數比較可知,經回歸分析得到的此模型參數與實驗數據符合較好。然後用彈簧表徵連接點的轉動剛度,根據的轉角位移方程推導出半剛性連接的剛度矩陣,在單元剛度矩陣中考慮了節點柔性、幾何非線性和剪切變形的影響,並對固端力進行了修正,最後用增量代法編制有限元程序進行計算和分析。
  16. In this thesis, the internal force and transfiguration of the double reticulated dome under different load combination are studied ; the linear and nonlinear analysis are separately performed ; compare the difference between space girder element and space truss element ; at last analyze the dynamical response under seismic action. the horizontal seismic response of double layer oblate lattice shell is analyzed by using step - by - step integration procedure. the effect of some parameters such as exterior load, different support conditions and damping ratio on the dynamic internal forces and dynamic properties is studied

    本文旨在研究雙層球狀網殼結構在各種載荷組合下的內力和變形,分別進行了線性和非線性靜力分析;進行了空間單元和空間桿單元兩種計算模型的比較;最後進行了在地震荷載作用下的動力反應分析,動力分析中用子空間代法得出了這類空間結構的動力特性,用時程法中的振型疊加法分析了結構在水平地震作用下的動態響應規律。
  17. Calculation of ultimate bearing capacity for inclined section of concrete composite beam with two - stage uniformly distributed load

    二次受力鋼纖維混凝土斜截面承載力計算
  18. Meanwhile, the influence of overlapping area on the beam foundation is modified by means of load amendment, and the influence of overlapping area on the pile - beam foundation is modified by means of stiffness amendment. by applying the model of stress - spread in shear - displacement method to describe the stress spread between piles and the geddes hypothesis to determine the stress distribution of pile, a displacement coefficient is deduced to calculate the flexibility matrix and the coefficient for load distribution of pile. considering the stiffness of foundation beam, the equation of the interaction of pile - beam - soil is established and an analysis program is developed related to the interaction

    本文通過採用剪切位移法中的應力擴散模型考慮樁與樁之間的應力傳遞作用;採用geddes假定確定樁身和樁端的應力分佈,推導位移系數,並以此為基礎求得柔度矩陣;樁身和樁端的應力分佈大小由樁的荷載分配系數控制,通過代法可以求出樁的荷載分配系數;在考慮基礎對樁??地基土共同作用的剛度貢獻基礎上,提出了樁??地基土共同作用方程,並通過本文作者開發的相應計算程序,經實例計算驗證了本文方法的正確性。
  19. In the process of finite element analyzing, the beam, column and b race that not enter the plastic parts adopt bearn element that considered geometry nonlinear. the links entering plastic adopt space degenerate shell element that considered the nonlinear large - deformation, together with mixed hardening rule, which linearly combines isotropic and kinematic hardening

    在有限元分析過程中,對于未進入塑性部分的、柱及支撐採用單元,單元考慮了幾何非線性,對于進入塑性部分的耗能段採用空間退化曲殼單元,曲殼單元考慮了幾何和材料的雙重非線性,材料的強化採用了混合強化法則,非線性方程通過newton - raphson代結合增量法求解。
  20. The paper use drucker - prager model as the constitutive model of soil, use pole module as the model of soil nails, use girder module as the model of soil - cement mixing piles, use goodman module as the model of interface, an iterative - increment method is used to solve nonlinear equation. 2. the paper has a further research on the influence of compound soil nailing behavior in the perspective and the axial strength of the soil nails of the effect of the stiffness of soil, the stiffness of soil - cement mixing piles, the width of soil - cement mixing piles, the length of nails, the angle of nails

    本文根據目前復合型土釘墻支護的研究現狀和工程實際需要,採用有限單元法對攪拌樁-土釘復合型土釘墻的力學特性進行數值分析,本文的主要工作內容有以下幾個部分: 1 .利用同濟曙光有限元軟體( geofba )對攪拌樁-土釘復合型土釘墻支護進行了非線性有限元分析,在有限元計算中,本文採用了drucker - prager模型作為土體的本構模型,土釘採用了桿單元模型,攪拌樁和噴射混凝土面層的組合體採用了單元模型,接觸面單元採用了goodman單元模型,非線性求解方法為增量代法。
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