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cable-structures
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     The structures of
     这些醚化产物的结构由红外、核磁、质谱确定。
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     structures.
     结构延性的有效措施——人工塑性铰。
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     ANALYSIS OF STIFF CABLE STRUCTURES
     劲性索结构的分析
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     THEORY OF ANALYSIS FOR RIGID-CABLE STRUCTURES
     关于劲性索结构计算理论的研究
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     Optimal Design of Cable-dome Structures
     索穹顶结构优化设计
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  cable-structures
An example of guyed mast shows the suitability of the proposed method for practical cable-structures.
      
As examples, two cable-structures have been investigated.
      
The following two classes of cable-structures have been considered force-elongation of cable member follows elastic behavior and work-hardening assumption.
      
In the present paper, the cable-structures are considered as a class of mechanical complementary-slackness systems.
      


From the variational Principle of Reissner and applying quadric or higher degree curvilinear element, this paper has derived the formulas of finite element method for cable structures and has explained its solution. The change of temperature, various loading cases and boundary conditions have been considered. A good result has been achieved in applying this method to the computation of a large-scale cable structure——cable bridge.

本文由Reissner原理出发,考虑温度变化、各种荷载及边界条件,应用二次或高次曲线单元,导出了适用于柔索结构计算的有限单元理论公式及求解方法,并将这个方法用于大型柔索结构——索道桥的计算分析,得到了良好的结果。

A stiffness matrix for the catenary element with the consideration of its out-plane stiffness is accurately derived by the virture work principle. It is valid for any type of flexible cable structures. The numerical examples show the importance of out-plane stiffness in the analysis of flexible cable structures.

本文用虚功原理精确地导出考虑出平面刚度的悬链线元刚度矩阵,能用于分析任何大垂度悬索结构.算例表明出平面刚度在大垂度悬索分析中是不能忽视的.同时本文也指出,现有文献给出的考虑出平面刚度的大垂度悬链线元刚度矩阵是不完善的.

In this paper, the authors have derived the incremental functional in nonlinear elastic dynamic problem and its finite element formulua by means of the Nonlinear Functional Analysis. Further more, taking the cable structures and employing Newton-Raphson and New mark method, tbe authors elaborate the calculating method for deformation and tension of cable structure for finite elastic deformation under dynamic load.

作者在本文中,利用非线性泛函分析理论,导出了几何非线性弹性体动力问题的增量泛函及其相应的有限元运动方程。并以大变形柔索结构受动载作用为例,采用Newton—Raphson迭代法与Newmark方法相结合,阐明了柔索结构受动载作用后索形位及索内张力的计算方法及步骤。

 
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