element buckling 中文意思是什麼
element buckling
解釋
構件彎曲-
Analysis the force on the falsework by comparison to three calculation methods, referring the designing standard steel tube scaffold of buckling element, lattice column of steel frame and the computer program of sap2000. the result provides strong guidance for practicing it
基於扣件式鋼管腳手架設計規范、鋼框架格構柱及sap2000程序等三種方法對胎架結構受力進行分析、比較，其結果對工程實踐有重要的指導作用。 -
Finite member element model for lateral buckling of thin - walled members
薄壁桿側向穩定分析有限桿元模型 -
Lateral buckling analysis of thin - walled members by finite member element method
橫向荷載作用下薄壁桿件穩定分析的有限桿元法 -
Finite element eigenvalue analysis for dynamic buckling of cylindrical shells under axial elastic compression wave
軸向應力波作用下圓柱殼彈性軸對稱動力失穩有限元特徵值分析 -
Soil springs are used around the pipe including vertical, lateral and axial soil springs to consider the interaction between the pipeline and the surrounding soil. the pipe segment near fault that usually suffers large deformation is modeled with a plastic shell element in order to consider the effect of local buckling and section deformation. to reduce the calculating time of the whole model, an equivalent spring proposed by the author is applied at two ends of the shell model
為了解決現有的殼單元方法需要大量計算機時的缺點，本論文首次從理論上把離斷層較遠管土之間相對變形較小的管子直線段部分的變形等效為一個非線性彈簧，將此等效邊界引入到有限元模型中，使得模型中的殼單元部分主要用來分析我們所感興趣的在斷層附近發生大變形的管段，從而達到節約計算時間的目的。 -
By the use of dynamic buckling supplementary restraint conditions at the compression wave front of cylindrical shells at the instant when the buckling occurs, the critical load and dynamic buckling modes of shells were calculated from the solutions of finite element characteristic equations
計算結果揭示了圓柱殼彈性軸對稱動力屈曲變形發展的機理，以及軸向應力波和屈曲變形的相互作用規律。 -
In this dissertation, the theories of finite element and the buckling analysis of shell are discoursed systematically. under the direction of these theories, with the help of ug software and msc / nastran software, the defective casing texture is analyzed on static strength and buckling, and then, the maximum loads of the texture with different defect value are gotten, the changeable curve of the maximum load with the defect value and the permissible defect value are gotten. that the texture with various defects can be destroyed variously is discoursed in considerable detail as well
本論文系統論述了有限單元法和板的屈曲穩定理論，並在這些理論的指導下，以ug軟體和msc nastran軟體為工具，對存在一定幾何缺陷的典型箱形構件進行靜強度和屈曲的綜合分析，分別得出了不同缺陷度的構件的極限載荷，從而得到缺陷度與極限載荷的變化曲線，給出了缺陷度的最大許用值；同時，本論文還針對不同缺陷度構件的破壞形式不同這一問題進行了詳盡的論述。 -
For each stiffener element, the average stress - strain relationship under axial load as a beam - column in the flexural buckling mode is derived based on the approximate method, proposed by gordo and guedes scares
這種方法對傳統船型是有效的，但是它不能給出船體極強度的真實估算，而且當應用於非傳統船型時其計算結果不能令人滿意。 -
Local buckling capacity of steel composite beam subjected to combined bending, shear and patch loading is one of key problem in steel structures design. the computational formula for local stability of web was based on the assumption of infinite - elastic perfect plates in the steel structures design code ( gbj17 - 88 ). but in the revised code ( gb50017 - 2003 ), this formula was made big change with reference to british code ( bs5950, partl ) and australian code ( as4100 ), the related research result of our country was included as well. in the modified formula, influence of early geometric imperfection and elastic - plastic buckling stage were considered, which is compatible with both actual circumstance of engineering and the strength formula of beams under bending stresses ( considering partial plasticity of the section ). in this paper, the preceding problem is deeply analyzed and studied, considering the effects of various geometric parameters and stress combinations on buckling critical stress of web, the revised local buckling correlative formula for transverse and longituded stiffened web panels under combined stresses is analyzed and verified by finite element method
組合鋼梁腹板在彎、剪及局壓復合應力作用下的局部屈曲承載能力是鋼結構設計中需考慮的問題，新的《鋼結構設計規范》 （ gb50017 ? 2003 ）對此部分內容作了較大改動，原規范中關于腹板局部穩定的計算公式是基於無限彈性的完善板假定；新的規范則參考了英國規范（ bs5950 part1 ）及澳大利亞規范（ as4100 ）並結合我國相關研究成果，考慮了屈曲進入彈塑性階段以及初始幾何缺陷的影響。這不僅與工程實際情況相符，而且也與鋼梁在彎曲應力作用下允許截面部分進入塑性的計算公式相協調。 -
This paper introduced the composition and classification of suspendome, generalized the nonlinear finite element computing methods. analysis to suspend - dome and single layer reticulate is conducted separately to the five type suspendomes which have same span but different rise - span, including force, displacement, eigenvalue buckling, nonlinear buckling, load - displacemnt tracking and nonlinear ultimate carrying capacity, every performance of suspendome was expatiated in the paper
通過對同一跨度、不同矢跨比的5種弦支穹頂結構和單層網殼進行的靜內力、節點位移、結構體系應變能、特徵值屈曲、非線性屈曲、非線性極限承載力、荷載-位移平衡路徑跟蹤分析和比較，闡述了弦支穹頂結構的各項性能，通過與單層網殼的比較，闡明了弦支穹頂結構的優越性。 -
In this paper, the buckling behavior of cold - formed angle members is studied by non - linear finite element method. the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed. the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented. according the calculating results of the ansys finite element method, the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling
本文運用非線性有限元法對冷成型單角鋼的穩定性能進行了研究，分析了寬厚比對冷成型單角鋼軸壓桿穩定性能的影響，給出了等邊冷彎角鋼發生彎曲屈曲和彎扭屈曲的判斷條件，根據ansys有限元的計算結果擬合出了冷成型單角鋼軸壓桿在發生彎曲屈曲以及在發生彎扭屈曲時的穩定系數公式，在此基礎上得出了冷成型單角鋼軸壓桿在所有長細比情況下的穩定系數公式。 -
Boundary element method for buckling eigenvalue problem and its convergence analysis
屈曲特徵值問題的邊界元方法及收斂性分析 -
The finite element method ( fem ) is also employed in stability analysis of reinforced shells. in the fem model the principle of equivalent width is employed to simplify calculation of the modulus of the skin and the loading capacity of the post - buckling skin is also considered
在運用有限元法對加筋殼穩定性進行分析時，對薄壁加筋殼結構按等效寬度原理，並考慮蒙皮屈曲后的承載能力，對蒙皮的彈性模量進行簡化處理。 -
( 4 ) introducing how to evaluate load capacity pn of wall stud considering post buckling strength of plate element. local buckling effects are determined according to the effective width method used in specifications gb50018 _ 2002 and aisi96
（ 4 ）參照gb50018 、 aisi96二本現行規范，採用有效寬度法考慮局部屈曲后強度並對非彈性屈曲應力進行修正，給出了考慮局部屈曲影響和進行非彈性修正後立柱的穩定承載能力p _ n 。 -
( 2 ) the finite element program ansys is used to analyze the elastic buckling of rectangular tube, consequently the buckling load pcr and the simulating formula for the restraint coefficient &, is obtained. the results derived from the program are compared with the british standard and china standard
（ 2 ）採用有限元程序ansys對矩形鋼管板組進行了彈性屈曲分析，得出其臨界荷載p _ （ cr ） ，彈性屈曲模態與解析法所作假設相符，並擬合出均勻受壓下的矩形鋼管約束系數k _ 1的公式，並與英國規范和我國規范進行比較。 -
The cold - formed square hollow section columns are widely used in various structures such as building structure, trusses, space frames and offshore plates etc. this paper is mainly doing the research on load carrying capacity of the cold - formed square hollow section columns under axial load, the paper includes the following main contents : ( 1 ) an elastic buckling stress for cold - formed square hollow section is presented by finite element analysis, and is compared with the result given by classical elastic buckling theory ; ( 2 ) the elastic - plastic non - linear behavior of the cold - formed square hollow section columns analyzed by ansys is presented ; ( 3 ) by using material model, and geometry nonlinear analysis, the cold - formed effect to stub columns of cold - formed square hollow section is studied ; ( 4 ) by using an material model, the geometry nonlinear analysis, the influence of initial geometrical imperfection to stub columns of cold - formed square hollow section is also analyzed ; ( 5 ) the load carrying capacity of the cold - formed square hollow section columns, which are including the cold - formed effect and influence of initial geometrical imperfection is analyzed by non - linear finite element, and the theoretical analysis results are compared with the results of experimental study and the results calculated by specification gb50018 - 2002
冷彎方管作為軸心壓桿廣泛用於房屋結構、桁架、網架、塔架以及海洋平臺等結構中，本文主要研究軸心受壓冷彎方管的承載力性能，內容主要包括以下一些： （ 1 ）對冷彎方管的彈性臨界應力進行有限元分析，並與經典理論結果進行對比，以驗證有限元程序的適應性； （ 2 ）闡述冷彎方管採用有限元彈塑性非線性分析理論及應用ansys軟體的非線性分析方法； （ 3 ）採用彈塑性模型，考慮幾何非線性及材料非線性，對不同寬厚比的軸心受壓冷彎方管柱的冷彎效應進行有限元非線性分析研究； （ 4 ）考慮冷彎效應對屈服應力的影響，對不同寬厚比的軸心受壓冷彎方管短柱在不同初始變形下的承載力性能進行有限元非線性研究； （ 5 ）考慮冷彎效應、幾何初始變形，對不同長細比和不同寬厚比的軸心受壓冷彎方管長柱的承載力性能進行有限元非線性研究，並與試驗結果以及我國現行規范gb50018 ? 2002計算結果進行對比分析。 -
Based on the steel - concrete coordinating relations, element stiffness matrix of geometrically nonlinear analysis, formulas for self - stresses by temperatures and displacements, stresses of corresponding superfluous structures are further studied. furthermore, a new theory and method for structural geometrical nonlinearity and buckling analysis is put forward
根據鋼混協作關系進一步推導出鋼混組合構件幾何非線性分析單元剛度矩陣、溫度自應力及鋼混超靜定結構溫度位移和應力的計算公式，建立了一種新的基於鋼混協作關系的異種材料組合構件的幾何非線性和結構穩定性分析方法。 -
Many factors are considered in the study of the nonlinear buckling bearing capacities of the representative concrete filled circular and square steel tube columns, these factors include the sectional form, the slenderness ratio, the steel ratio, and the eccentricity ratio. the comparison between the test and calculating results shows that they have a good agreement. in theoretical investigation of the time - dependent behaviour of cft specimens, based on the three - dimensional viscoelastic theory, this paper proposed the three - dimensional finite element model of creep of core concrete, in which a linear three parameters visoelastic model was adopted
在對鋼管混凝土構件極限承載力的分析計算中，本文提出了核心混凝土的三維非線性應力?應變全量和增量本構關系模型，採用完全的拉格朗日表述來考慮與變形歷史有關的大變形問題，並對長細比、含鋼率和偏心率在較大范圍內變化的方、圓鋼管混凝土構件的非線性屈曲承載力分別進行了試驗和理論對比分析研究，結果表明二者符合較好。 -
In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched
最後，將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中，對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究，並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。 -
The finite element buckling analysis of the link - rod in mechanical impulse stepless gear box
型脈動無級變速器連桿的有限元屈曲分析
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