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buckling load
    An Approximate Analysis for the Torsional Buckling Load of a Thin walled Box Column with Variable Section
    变截面箱形薄壁立柱扭转屈曲荷载的近似分析
    THE BUCKLING LOAD AND VIBRATION FREQUENCY OF CORE TUBE WITH HOLES IN FOUR SIDES OF HANGING SINGLE CORE TUBE STRUCTURE
    核心单筒式悬挂结构中四面开洞核心筒体的屈曲荷载与振动频率
    Numerical results are consistent with test results, so elastic flexural-torsional buckling load of arches can be analysed by SHELL63 or BEAM189 elements.
    数值分析结果和试验结果都十分吻合,说明SHELL63壳单元、BEAM189梁单元都可较好地模拟弹性拱的整体弯扭屈曲荷载
    The research results show that the use of partial double layers spherical reticulated shell can improve the stability of single layer one and promote the ultimate buckling load of its nodes.
    研究结果表明,局部双层网壳能够明显改善单层网壳的稳定性能,提高其网壳的屈曲荷载,既具有双层网壳的稳定性,又能节省钢材,是一种理想的空间结构形式。
    Energy method for buckling load of wall studs in cold-formed lower house
    冷弯型钢房屋墙体立柱临界屈曲荷载能量解
    The normalized computing method for the welding I-shape beam exerted by a buckling load
    焊接工字形梁屈曲荷载的规范计算法
    Based on the relationship between the buckling load of a rigid column and the bracing stiffness, the critical stiffness requirement of the bracing for a single column was obtained.
    本文首先利用刚性单柱屈曲荷载增量与支撑刚度的关系,得到了单柱横系杆支撑、斜拉杆支撑的门槛刚度要求。
    The relationship between the buckling load of the longitudinal frame and the stiffness of bracings and the formula for the critical stiffness requirement were put forward using the analytical method.
    进一步利用解析法确定了支撑刚度同为有限时,屈曲荷载与支撑刚度的关系以及柱列无侧移失稳的门槛刚度要求表达式。
    A newoptimization criterion based on a modified dimensionless elastic buckling load isestablished to evaluate the efficiency of arches with web openings.
    提出了一种修正的无量纲化弹性屈曲荷载作为优化准则,以此来评价开洞拱的效率,给出了孔的优化半径和间距。
    The elastic buckling load of axially loaded compression steel pipes strengthened with FRP was presented in this paper by using energy approach.
    采用能量法推导出FRP加固轴心受压钢管的弹性屈曲荷载计算公式。
    The general solution of displacements of static analysis is adopted to simulate the buckling displacements or possible displacements in vibration and relevant variational principles (displacement variational principle for buckling analysis) are adopted to form the stiffness matrix. The eigenvalues and the corresponding eigenvectors of the stiffness matrix are the buckling load and corresponding buckling mode, or the frequencies and the corresponding vibration modes.
    方法采用静力分析中位移的一般解代替屈曲位移时的可能位移,利用变分原理(屈曲分析采用位移变分原理)形成刚度矩阵,最后通过求解刚度矩阵的特征值和相应的特征向量,即可得到屈曲荷载和相应的屈曲模态。
    At one time,the buckling analysis of structures with different rise-to-span were made,and discovered that buckling load and stability can be improved with high rise-to-span.
    同时文中还对不同矢跨比下的该结构作了屈曲分析,发现增加矢高可显著提高结构的极限屈曲荷载,改善结构的几何非线性稳定性能。
    Stress concentration at the edge of the hole results in the reduction of the shell buckling load and the ultimate load-carrying capacity, as the discontinuity of the opening leads to the local disturbing in the displacement field and stress field.
    开孔的不连续性引起壳体位移场和应力场的局部扰动,在孔边产生应力集中从而导致壳体屈曲荷载下降和极限承载能力降低。
    and second, the structural critical buckling load has been improved greatly if CFRP strip bonded to the top and bottom flange or bonded to the top flange at the mid-span;
    在WF型梁结构跨中的上下翼缘或上翼缘采用CFRP对结构进行加固,可以有效地提高结构的临界屈曲荷载,增强了结构的稳定性;
    In this article, the large deformation and the matrix of geometric rigidity is calculated. The whole stability of the boiler structure is analyzed by two types of buckling methods in the ANSYS, so as to get the Load-Displacement curve and the buckling load. By the two Buckle analyses of ANSYS software, the overall stability of the boiler for a qualitative analysis, the simulation of nonlinear load-displacement relationship curve and the structure buckling load were calculated.
    本文考虑结构几何非线性和大变形影响,引入几何刚度矩阵和大位移刚度矩阵,通过ANSYS软件中的两种屈曲分析,对锅炉整体作稳定性分析,模拟出结构荷载一位移曲线,计算出结构的屈曲荷载
    (5) The buckling load of pile in long-short-pile composite foundation has some difference to that in single uniform soil foundation because of the influence of the short-pile. When the coefficient of soil foundation under the short-pile is something big, the influence of the short-pile to the long-pile's buckling load is very weak, on the contrary, it is strong.
    (5) 组合桩复合地基中短桩改善地基土的效果对长桩的屈曲临界荷载的影响规律为:当短桩桩端以下的土质较好时,短桩改善地基土的作用对长桩的屈曲荷载影响不大,当短桩桩端以下的土质较差时,随着短桩改善地基土的深度和效果的提高,长桩的临界荷载有显著的提高。
    In this paper, the solution of lateral-torsional buckling load is based on an ideal elastc-plastic material: a typical cross-section adopted for the current specification TJ17-74 is used; the effect of residual stresses existing in welded I-section members with flame-cut flange plates is taken into account.
    本文以理想弹塑性材料为基础求解弯扭屈曲荷载,取用制订TJ17-74规范所用典型截面,考虑了焰割边钢板焊接工字形截面构件残余应力的影响。
    26 steal bracket plates of different geometric shapes are tested and analysed by FEM. The result shows that the strength formula of bracket plate deduced by the "cantiliver-beam-method" is incorrect when a/b≤0.75.The formula for calculating the strength and buckling load are presented in this paper.
    本文通过对26个不同几何形状、不同边比的承托板的试验和有限元分析,表明按“悬臂梁”方法导出的承托板强度计算公式,在常用的边比范围(a/b≤0.75)是不正确的。 本文提出了承托板的强度和弹性屈曲荷载的计算公式。
    Employing the principle of virtual displacements, approximate formulas for the torsional buckling load of a thin walled box column with variable section are derived.
    本文利用虚位移原理导出了变截面箱形薄壁立柱约束扭转屈曲荷载的近似计算公式。
    It is revealed that, there is a threshold value of support stiffness, so that: (1) if the support stiffness is less than or equal to the threshold value,the buckling load of the strut will increase with the increase of support stiffness,and the bifurcation points and the corresponding postbuckling equilibrium paths are unstable for all but one small region starting from zero;
    研究表明:存在一个由杆的长度以及抗弯刚度决定的支承刚度的阈值,当支承刚度不超过该阈值时,屈曲荷载是简单的,随着支承刚度的增加而增加,且除了从零开始的一个很小的基础刚度范围外,所有分岔点以及由此产生的后屈曲平衡路径皆是不稳定的;
 

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