柱的屈曲 的英文怎麼說
中文拼音 [zhùdeqūqū]
柱的屈曲
英文
chapter 13 buckling of columns-
S. consideration of interaction on the nonlinearity about the material, the geometry, and the boundary of the columns subject to axial force. biaxial hending, and torsion, an analytical model of hysteretic curve of columns is presented, based on the sectional cross - sectional discrete yieldsurface inodel, the bond slip in anchorage zones regarded as the boundary nonlinearity of a memher. and the iterative procedure of displacement of inner nodes on the basis of the hamonization of displacement
5 、根據構件分段截面離散的屈服面模型法,把錨固區粘結滑移看成構件的邊界非線,以及基於位移協調的內結點位移迭代法,建立了能考慮構件壓(拉) 、雙彎、扭的材料、邊界、幾何非線性相互影響的柱空間滯回曲線分析模型。The simplified geometric nonlinear theory is used in post - buckling analysis. galerkin method is employed to derive the eigenvalue equation of the shell containing initia l geometrical imperfections. the buckling critical load is get. the program for calculating the buckling critical load is developed and the numerical example is given.
採用簡化的幾何非線性理論,進行了后屈曲分析,應用galerkin法推導得到了含有初始幾何缺陷的編織復合材料圓柱殼的屈曲特徵方程,得到了臨界荷載的計算公式,編制了相應的計算機程序,並給出了具體算例,得到了一些有益的結論。In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered
確定了船體梁整體破壞時的剖面應力分佈之後,關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式,即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響,使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲,採用解析法推導出筋的腹板的撓度方程及其邊界條件,求解相應的方程,從而計算出腹板的局部屈曲應力。First, the dynamic stability of braid composite cylindrical shells with the influences of some main factors is introduced. the general governing equations for the nonlinear dynamic stability is obtained. by the hamilton principle. the creep buckling analysis of braid composite cylindrical shells under axial compression and the dynamic stability under nonconservation force are discussed as emphases. in creep buckling question, by means of theoretical analysis, the instaneous critical load and durable critical load of viscoelastic braid composite cylindrical shell under axial compression are obtained and the numerical example is given
首先介紹了編織復合材料圓柱殼在幾種主要因素影響下的動力穩定性問題,用hamilton原理建立非線性動力穩定性問題的一般性基本方程。然後重點討論了編織復合材料圓柱殼軸壓下的蠕變屈曲問題及非保守力作用下的屈曲問題。對蠕變屈曲問題,通過理論分析來得到了編織復合材料圓柱殼的瞬時彈性臨界載荷和持久臨界載荷,給出了具體的算例。Results showed that the ductility of bolt spjice is much better than welds, weaker splice joints develop larger plastic deformation, slipping between faying surfaces, bearing of bolts to hole surfaces and buckling of splicing plates are all ideal energy dissipation mechanism
試驗結果表明:螺栓拼接節點的延性遠好於樑柱焊縫連接;較弱的拼接節點產生較大的塑性變形;接觸面的滑移、螺栓與孔壁的擠壓和翼緣拼接板的屈曲都具有良好的耗能能力。Based on an established stochastic weighted residual method formulation, stochastic buckling of a cylinderic shell is discussed
摘要在建立隨機加權殘數法公式體系的基礎上,討論了圓柱殼屈曲的概率分析。Inelastic yield load of concrete filled steel tubular middle long columns under axial compression
鋼管混凝土軸壓中長柱的非彈性屈曲荷載Experimental study of the aseismic behavior of self - compacting high strength concrete frames
圓鋼管混凝土壓彎長柱非線性屈曲承載力的理論研究According to the elastic bucking theory this paper reviews and compares the calculations that such member bend around the reat axis and the hollow axis as well as bend with torsion around the hollow axis. here this paper presents a formula of calculating b used in with the h - shaped anglicizing element. meanwhile, this paper deduces out a formula of calculating b. by, which the member could be controlled to only buckle around the real axis
本文根據彈性屈曲理論對雙肢格構式單軸對稱綴板柱繞實軸、虛軸以及彎扭屈曲進行了計算分析和比較,提出了繞虛軸側向屈曲的換算長細比_ ( oy ) = ( y ~ 2 + l ~ 2 ) ~ ( 1 / 2 )中的值用h計算單元指出的計算公式,同時推導出了單軸對稱綴板柱只出現繞實軸彎曲屈曲的最小肢間間距b 。The results of the limited element analysis and experiment study confirms that both the resisting ended batten and using angle batten in place of plate one could make the laterally stiffness of such member more strong. that maybe provides somewhat practical benefits for designing the twin - wall truss
本文還通過矩陣分析法和模擬試驗研究,證實了端綴板的存在對抵抗側向屈曲有明顯提高;而選用角鋼代替綴板材料相對于板形板,有助於提高構件的側移剛度和翹扭轉剛度,這對于單軸對稱綴板柱的設計也具有一定的實用價值。The net collocation point method with spline function is proposed to derive the formulation system of stochastic buckling analysis for cylinderic shells under various boundary conditions
提出了樣條函數的網狀配點法,推導了不同邊界條件下圓柱殼屈曲的隨機分析公式系統。On this basis, the further research of anti - seismic of buckling restrained braced frame is performed. derive additional damping and influence of buckling restrained brace to column axis strength. example proved, as to concentrically braced frame, buckling restrained braced frame has better anti - seismic performance
在此基礎上,將此種支撐應用於框架中,對防屈曲支撐框架的抗震性能作了進一步的研究,推導了防屈曲支撐的附加阻尼比以及防屈曲支撐對柱附加軸力的影響,並且通過對一個算例進行非線性時程分析驗證了相對于普通中心支撐框架,防屈曲支撐框架具有更好的抗震性能。The post - buckling analysis of ring - stiffened shells under hydrostatic pressure using compound strip method
復合有限條法研究水壓作用下加肋柱殼的后屈曲An analytic solution for post - buckling of tubularssubjected to axial and torsional loading inhorizontal circular cylinders
水平圓管中受壓扭作用管柱屈曲后的解析解With the different loading ratio of parallel to axis and normal to axis direction, damage defects will occur bulking problem. by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus, crack growth bulking strain value parallel to or normal to the loading axis is different. the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc. at last, it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress
研究結果表明:殼體筒段受軸向拉伸和內壓載荷作用時,軸向和環向載荷的比率不同,母層和子層可能發生拉伸屈曲,也可能發生收縮屈曲,或者同時發生拉伸和壓縮屈曲;母層與子層各向異性存在差異,即泊松比與剪切模量不匹配時,將使子層板的邊界上承受壓縮和剪切作用,當分層達到臨界狀態則發生屈曲,當母層與子層的各向異性差異越大,則發生分層屈曲的可能性越大;分層損傷的屈曲應變值與子層自身的彈性模量、分層子層的形狀、厚度以及圓柱半徑等因素有關。Experimental results show that the new cfrt - column to steel - beam joints proposed in this paper possess good earthquake resistant capacity. the infilled concrete benefit to restrain the buckling deformation of column webs, increase the strength and stiffness of the joint. the lengthened stiffener can transfer much more beam moment, make the strength of the joint increased
試驗表明,在保證焊接質量的前提下,本文提出的新型方鋼管混凝土柱?鋼梁的節點具有良好的抗震性能;內填混凝土有利於抑制柱腹板的屈曲變形,增加節點的承載力和剛度;加勁肋長度的增加有利於傳遞梁端彎矩,使節點的承載力提高。In the buckling question under nonconservation force, a simply example ( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal. ) is considered. the variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self - excited vibration. the calculated formulas of the flutter load and quasinatural frequency of shells are obtained. the program for calculating the flutter load is developed. the numerical example is given and some useful conclusions are obtained
對非保守力作用下的屈曲問題,具體研究了圓柱殼在比較簡單的情況,即小變形、線彈性、直法線假設下在隨動力作用下的殼屈曲問題,由擬固有頻率變分原理推出了圓柱殼受隨從力作用的變分方程,得到了顫振載荷與殼彎曲的固有頻率的計算公式,編制了相應的計算機程序,並給出了具體算例,得到了一些有益的結論。( 3 ) overall buckling loads of wall stud under some typical end conditions are derived from energy method
( 3 )用解析法推導出四種典型邊界條件下,墻體立柱的屈曲臨界荷載。4, using the finite element method, the buckling of the case is studied under the loads including the axial force torsion and pressure. the results will be benefit for aero - engine design in the future. the buckling characteristics of the two new kinds of composite ( t300 / kh - 304 and t300 / bmp - 316 ) is studied under the same boundary conditions sizes and plies, the anti - buckling ability of t300 / kh - 304 composite laminate is better than that of t300 / bmp - 316 composite plates
4 、首次用有限元法和圓柱殼體耦合理論分析了t300 bmp - 316復合材料機匣分別在軸向力、扭矩和內壓等單獨作用以及耦合作用下的屈曲特性,為進一步研究打下了基礎;運用有限元法分析了t300 kh - 304和t300 bmp - 316兩種復合材料層合板的屈曲特性,討論了鋪層方式、尺寸、位移邊界條件等參數對屈曲特性的影響。Buckling analysis of cylindrical shell based on mixed variables transfer function method
基於混合變量傳遞函數方法的圓柱殼屈曲分析分享友人