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屈曲荷载     
相关语句
  buckling load
    Calculating the Literal Bent and Torsinal Buckling Load of Beam-columns in Elastoplastic State With Numerical Method
    数值法计算压弯构件的弹塑性弯扭屈曲荷载
短句来源
    The solution to elastic-plastic buckling load of central compression strut with initial bending imperfection
    具有初弯曲的轴心受压构件弹塑性屈曲荷载研究
短句来源
    But the effects of initial imperfections for the buckling load is few when imperfections exist at the main vessel.
    而主容器上的初始缺陷对屈曲荷载几乎没有影响。
短句来源
    By combining the linearization of the governing equation with the method of harmonic balance, we have established analytic approximate formulas for the buckling load and the largest deflection of the column.
    将控制方程的线性化与谐波平衡法组合起来,分别建立以杆端转角形式表示的屈曲荷载及最大挠度的解析逼近公式。
短句来源
    This paper concisely presents the characteristics of structural stability and introduces the basic thought and procedure of calculating the literal bent and torsional buckling load of beam-columns in elastoplastic state with numerical method on the basis of computers.
    简述压弯构件稳定的基本情况 ,以电算法为基础介绍了数值法计算压弯构件弹塑性弯扭屈曲荷载的基本思路以及求解步骤 .
短句来源
更多       
  buckling loads
    The Approximate Analytical Solution for the Buckling Loads of a Thin_Walled Box Column with Variable Cross_section
    变截面箱形薄壁立柱屈曲荷载的近似分析解
短句来源
    By application of Galerkin variational method, the critical eigenvalues, buckling loads and critical stresses are computed for shells with various truncated ratios in full concinnity.
    应用 Galerkin法计算了各种截锥比壳体在全锥度的临界特征值、屈曲荷载和临界应力。
短句来源
    In this paper, when initial imperfections exist at the support skirt or at the main vessel of LMFBR vessel respectively, the static analogue analysis on bucking behavior under seismic excitation were carried out. At first, on the case of normal atmospheric temperature (20℃) or high temperature (400℃ ), and there is or no liquid in the main vessel repectively, the buckling loads and modes under hor-zontal seismic excitation for perfection LMFBR vessel were analyzed by Super-SAP93 code.
    对在快增殖反应堆堆本体的裙座上和在主容器上分别有初始缺陷时,进行了地震作用下的静态屈曲模拟分析,采用Sup-SAP93程序,先分析了无初始缺陷的堆本体在室温(20℃)和高温(400℃)、无液压和有液压时在模拟水平地震激励下的屈曲荷载与屈曲模态。
短句来源
    A singular perturbation technique is employed to determine the buckling loads and postbuckling equilibrium paths.
    相应的奇异摄动法,用于确定圆柱曲板的屈曲荷载和后屈曲平衡路径。
短句来源
  “屈曲荷载”译为未确定词的双语例句
    FINITE ELEMENT ANALYSIS ON BUCKLING OF ARCH BY THE DEGENERATED 3-D CURVED BEAM ELEMENTS
    拱屈曲荷载分析的三维退化曲梁单元有限元法
短句来源
    In Chapter IV and V, nonlinear dynamic buckling of symmetrically laminated composite shallow spherical shells and laminated composite truncated shallow spherical shells under concentrated impact load are investigated based on the theory of classical laminated shells.
    第四章和第五章基于经典的层合壳理论,研究了在中心集中冲击载荷作用下的复合材料层合扁球壳和复合材料层合开顶扁球壳的非线性轴对称冲击动力屈曲问题。 采用Galerkin方法和Runge-Kutta方法对控制方程进行求解,应用B-R准则得到了两类壳体的临界冲击屈曲荷载
短句来源
    Both the incremental method with the tangent stiffness and modified Newton-Raphson method are used to compute the pre-buckling stress distribution in elastic and plasti ranges. A bifurcation analysis is preformed by using Stowell' s deformation theory.
    根据塑性屈曲的Stowell形变理论,用基于切线刚度矩阵的增量法和修正的Newton-Raphson方法,计算屈曲前的弹塑性内力分布,并用逆幂迭代法求解弹塑性屈曲荷载.
短句来源
    The results of numerical calculation are close to the experimental research.
    并进行了相关实验研究,最后将有限元计算结果与实验所获得的静屈曲荷载进行比较,结果吻合较好。
短句来源
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  buckling load
Based on the results of the tests and literature, the formula of the buckling load of composite pipes under axially compressive load was presented based on Perry formula.
      
Analysis modeling for plate buckling load of vibration test
      
Thus, there has been a tendency in the construction field to derive a precise buckling load analysis model of member in order to establish accurate safety factors.
      
A numerical analysis model, using modal analysis to acquire the dynamic function calculated by dynamic parameter to get the buckling load of member, is proposed in this paper.
      
The analysis results indicated that this proposed method only needs to apply modal parameters of 7×7 test points to obtain a theoretical value of buckling load.
      
更多          
  buckling loads
The natural frequencies and buckling loads of these thin-walled structures are computed.
      
Using the differential equation of equilibrium and an energy method, the flexural and torsional-flexural buckling loads are evaluated.
      
Equations to determine the buckling loads are developed considering typical end-conditions.
      
Buckling loads of linearly tapered columns laterally restrained by multiple elastic springs
      
This paper discusses the numerical methods that were developed for calculating the buckling loads with the corresponding buckled shapes of linearly tapered columns laterally restrained by multiple elastic springs.
      
更多          
  yield load
The purpose of this study was to evaluate the effect of screw placement on the stiffness, yield load, and ultimate load of hamstring graft fixation in the tibial tunnel.
      
Tibial fixation stiffness was greater using concentric screw placement (P >amp;lt; 0.05) although there was no statistical difference in yield load, slippage, or ultimate load.
      
Analysis of yield load, maximum load and stiffness in the single cycle loading test showed no statistically significant differences for hybrid fixation with a 1?mm undersized screw and aperture fixation with a screw matching the size of the tunnel.
      
The BioCorkscrew group also displayed greater yield load during load to failure testing (492.2?±?204?N vs.
      
Elongation after 1,000 loading cycles, ultimate failure load, yield load, stiffness, deformation at the yield point, and mode of failure were recorded.
      
更多          
  bucking load
The lower experimental bucking load was due to the small imperfections in the cylinder but this problem can be overcome by advancement in the manufacturing methods.
      
  其他


Cubic B-spline approximations and iterative techniques have been used in computing highly nonlinear deflections of clamped shallow spherical shells under successive increments of uniformly distributed loads. We find that for the shells with the geometric pa-rameter arch chord length, R = radius of curvature, h=thickness), the slopes dP/dW. of p-W. (load-central deflection) curves may go to infinity (and become negative) before snap-through buckling loads have been attained. A special algorithm which uses alternatively...

Cubic B-spline approximations and iterative techniques have been used in computing highly nonlinear deflections of clamped shallow spherical shells under successive increments of uniformly distributed loads. We find that for the shells with the geometric pa-rameter arch chord length, R = radius of curvature, h=thickness), the slopes dP/dW. of p-W. (load-central deflection) curves may go to infinity (and become negative) before snap-through buckling loads have been attained. A special algorithm which uses alternatively the increments of central deflection and load as iterative parameters has been developed to cope with this situation. This algorithm gives fairly good convergence rates for values of λ as high as 46 and the buckling loads obtained for λ<20 are compatible with that computed by B. Budiansky and R. Archer with entirely different methods.

本文用三次B样条函数和迭代法求解圆底扁球壳在逐次加载时挠度增量和内力增量所满足的变系数非线性微分方程,从而得出均布荷载作用下周边固定圆底扁球壳轴对称弯曲问题的解答。文中计算了λ≤46的各种λ值的极值屈曲荷载,所得结果在λ≤20时与Budiansky等所得结果一致。

Assuming the deformation of the shell has an axial symmetrically form, we transform the Marguerre's equations[1] into difference equations, and use these equations to discuss the buckling of an elastic thin shallow spherical shell subjected to impact loads. Tlie result shows when impact load acts on the shell, a jump of the shell takes place dependent on the values A and the critical buckling load increases with the enlargement of the loading area.

本文在轴对称变形的假设前题下,通过将扩展了的Marguerre’s方程化为差分方程,对其上作用荷载面积不同时的固支弹性薄扁球壳的屈曲问题作了一些探讨.由此发现,固支薄扁球壳在外界冲击荷载作用下,在λ(=2[3(1-v~2)]~(1/4)(H/h)~(1/2))的某一范围内发生了跳跃屈曲,并得到轴对称跳跃屈曲荷载随壳体上荷载作用面积的增大而提高的结论.

In this paper, the post- buckling behavior of an elastic pinended strut on an elastic foundation is studied.Attention is focused on those values of foundation stiffness at which,under axial load, the two lowest buckling loads of the strut are near.At first,we reveal the secondary buckling of the strut by means of Liapunov-Schmidt reduction and analyses of stability;furthermore,give the asymptotical unfolding of the primary post-buckling branches and secondary branches based on bifurcation equation.Secondly,numerical...

In this paper, the post- buckling behavior of an elastic pinended strut on an elastic foundation is studied.Attention is focused on those values of foundation stiffness at which,under axial load, the two lowest buckling loads of the strut are near.At first,we reveal the secondary buckling of the strut by means of Liapunov-Schmidt reduction and analyses of stability;furthermore,give the asymptotical unfolding of the primary post-buckling branches and secondary branches based on bifurcation equation.Secondly,numerical conputations of the secondary buckling of the strut is made by the method which have been developed by the author of this paper.The numerical results are in agreement with the asymptotical expression very well.

本文研究弹性基础上受轴向加载的两端铰支杆当其最低两屈曲荷载很近时的后屈曲行为。首先,使用Liapunov-Schmidt约化并借助稳定性分析,揭示了杆的二次屈曲现象;基于分叉方程给出了原始后屈曲分支及二次分支的渐近展开。其次,我们使用作者建立的二次分叉的计算方法对杆的二次屈曲做了数值计算,数值结果与渐近展开符合得很好。

 
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