| 引用本文: | 肖万伸,曾庆元,唐国金.索的UL列式分析方法.[J].国防科技大学学报,2001,23(5):31-35.[点击复制] |
| XIAO Wanshen,ZENG Qingyuan,TANG Guojin.A UL Formulation for Cables[J].Journal of National University of Defense Technology,2001,23(5):31-35[点击复制] |
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| 索的UL列式分析方法 |
| 肖万伸1,2, 曾庆元3, 唐国金1 |
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(1.国防科技大学 航天与材料工程学院力学博士后流动站，湖南 长沙 410073;2.湖南大学 工程力学系，湖南 长沙 410082;3.中南大学 铁道校区，湖南 长沙 410075)
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| 摘要: |
| 通过求解索的微分方程边值问题,提出了分析索的收敛迭代公式。利用迭代解可顺利地确定索端位置坐标差、索力及索重之间的关系。算例表明：本文计算索的方法,理论上可达到任意高的精度,可十分方便地用于含有索或索网混合复杂结构物的大变形分析，用这种方法能解决斜拉桥缆索应力松驰的计算问题。 |
| 关键词: 索 缆索 悬索 UL列式 大变形 |
| DOI： |
| 投稿日期：2001-01-10 |
| 基金项目: |
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| A UL Formulation for Cables |
| XIAO Wanshen1,2, ZENG Qingyuan3, TANG Guojin1 |
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(1.College of Aerospace and Material Engineering, National Univ. of Defense Technology, Changsha 410073;2.Department of EngineeringMechanics, Hunan University, Changsha 410082;3.Railway Campus of Central South University, Changsha 410075 China)
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| Abstract: |
| A convergent iterative solution method for cables is formulated after solving the boundary problem with differential equation of a cable. By using the iterative solution, it is simple to determine the relation among the coordinate difference of cable-end position, cable tension and cable weight. The examples demonstrate that the present scheme for cable calculation can be as theoretically concise as required, and it is convenient to be used for analysing largely deformed complicated structures including cables or cable nets, and the present method makes it possible to solve the divergence problem of stress relieve of cables caused by employing some techniques such as Ernst Model for cables. |
| Keywords: rope cable catenary cable UL formulation large deformation |
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