Production technology of complicate al alloy investment casting with thin walled section has been discussed.
论述了复杂薄壁铝合金精铸件的生产技术。
The proposed method is applicable for the thin-walled member of any cross section with any boundary condition.
本方法适用于任意横截面形状和任意边界条件的薄壁杆件。
This paper examines the shearing flow of any thin-walled beam with open section and the calculation of the coordinates of bending center.
研究任意开口薄壁截面杆的剪力流和弯曲中心坐标的计算问题，利用合力矩定理导出计算公式，给出算例。
A simple calculation expression of the shearing flow and the coordinates of bending center is introduced for the thin-walled beam with open section.
针对开口薄壁截面梁的剪流和弯心坐标的复杂计算问题，导出了简便计算公式。
This article introduced the cantilever climbing form construction technology of variable section hollow thin-walled pier through scheme comparison and selection.
本文通过方案比选确定了采用悬臂爬模施工技术，并详细介绍了变截面空心薄壁墩悬臂爬模施工技术。
The torsion of composite beams of steel and concrete and the limit analysis based on the theory of twisted members with thin walled open section and restraint of warping are discussed.
对钢与混凝土组合梁扭转进行了探讨，提出了以开口薄壁杆件的约束扭转理论为基础的扭转极限分析方法。
After a study on this hypothesized spring beam, a method for analyzing warping torsion on spot-welded thin-walled box section beam has been presented.
通过对这种具有“假想弹簧”的半闭口截面构件的研究，提出了一种分析点焊箱型截面薄壁构件的翘曲扭转的新方法。
In this paper, on the base of Ullmanski's hypothesis, the unified beam theory of thin walled open and closed cross-section and the governing differential equations are established.
本文将开口和闭口薄壁理论统一在乌曼斯基假设之下，建立开口和闭口薄壁杆件统一的基本微分方程序。
The elastic and plastic problem of thin-walled curved box girders is solved with the spline finite point method and the section internal force plastics coefficient method.
采用样条有限点法和截面内力塑性系数法对薄壁曲线箱梁的弹塑性问题进行了求解。
A new point is put forward that transverse bimoment has different influence on the two kinds of cross section thin-walled beams, and on their St-Venant principle conditions.
同时对外载等效中经常出现的横向双力矩这一广义力进行研究，指出它在开口和闭口薄壁梁约束扭转问题中和圣维南原理适用条件中分别占有不同的地位。
Using the generalized coordinates method, fundamental equations for the restrained-torsion of thin-walled box girders of trapezoidal cross section are derived.
本文介绍了用广义坐标法推导的梯形截面箱梁约束扭转计算的基本微分方程；
The strain of the thin-walled ring section beam is investigated theoretically and experimentally. The result shows the local strain varies as the cosine function of twice the positional angle.
对圆环形薄壁截面梁的应变进行了理论与实验分析，结果表明圆环形薄壁截面梁各点应变与该点角度的二倍呈余弦变化关系。
The rigidity calculation of the closed thin - walled section rod structure of aircraft is carried out by using finite element method and the result tallies with the full - scale test value well.
利用有限元法对飞机闭合薄壁剖面杆结构进行刚度计算，其结果与全尺寸试验值吻合较好。
Pnesents the finite analytic method of the open Thin-walled bars with variable section.
本文阐述变截面开口薄壁杆件的有限分析法。
The present method is suitable for any shape of cross section thin-walled members.
本方法适用于任意形式截面的薄壁杆件分析。
The main content of this thesis is lateral buckling analysis of thin-walled structures with irregular cross section by transformed 63 spline finite member element method.
本文主要分析了具有不规则横截面形状的薄壁结构在横向荷载下的稳定问题。
Firstly, a six-axis wrist force sensor using a thin-walled cylinder as detective section is proposed in this paper.
本文首先提出了一种新结构的水下机械手用六维腕力传感器；
The thin-walled element with different shear-centers on one section is analyzed and calculated by this method as well, then, the element flexibility matrix is presented.
结合示例介绍了用动态坐标法直接计算薄壁构件的空间变形，并将其用到弯心不共线的薄壁梁的计算分析中，给出了相应的单元柔度矩阵和力法求解过程。
Taking the lateral displacement of the cross section and the longitudinal displacement of nodes as the basic variables the finite element analysis of thin-walled member structures is formulated.
导出以截面横向位移和节点纵向位移为未知量的有限元法的基本方程。
The results show that the severe cross section distortion takes place much easier in the thin-walled rectangular tubes than that in the circular tubes and plank stuff.
结果表明，与圆管、板材等型材的压弯相比，薄壁矩形断面管压弯更容易产生严重的截面畸变；
However, the thin-walled steel tubes are prone to local buckling under axial pressure, especially for the square and rectangular cross-section shape.
但是薄壁钢管在轴向荷载下容易发生局部屈曲，尤其是截面形状为方形或矩形时。
A linear function is used to express the warping displacements along the cross section of the thin-walled member.
本方法采用线性函数作为横截面翘曲位移的插值函数，适用于任意横截面形状和任意边界条件的薄壁杆件。
A linear function is used to express the warping displacements along the cross section of the thin-walled member.
本方法采用线性函数作为横截面翘曲位移的插值函数，适用于任意横截面形状和任意边界条件的薄壁杆件。
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