| 高压柔性传输线的非线性变形分析 |
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| 引用本文： | 黄炎,兰伟仁. 高压柔性传输线的非线性变形分析[J]. 工程力学, 2007, 24(6): 185-188,164 |
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| 作者姓名： | 黄炎 兰伟仁 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南长沙,410073;总参气象水文中心,北京,100081 |
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| 摘 要： | 根据柔索应变与位移的非线性几何关系以及自重作用和温度影响下的平衡方程,采用欧拉描述的坐标系统精确地求得了各点的位移和张力的解析解。对高压柔性传输线建立的非线性代数方程组应用改进的Powell混合算法编制的高精度DNEQNF程序直接进行求解。最后,给出了柔性传输线变形分析的数值算例并与相关文献进行了比较,算例的结果表明方法对求解柔索的非线性变形问题比其它方法更方便有效。
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| 关 键 词： | 柔索 非线性变形 解析解法 传输线 位移 张力 |
| 文章编号： | 1000-4750（2007）06-0185-04 |
| 修稿时间： | 2005-11-092006-06-15 |
NONLINEAR DEFORMATION ANALYSIS OF FLEXIBLE TRANSMISSION LINE WITH HIGH VOLTAGE |
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| HUANG Yan,LAN Wei-ren. NONLINEAR DEFORMATION ANALYSIS OF FLEXIBLE TRANSMISSION LINE WITH HIGH VOLTAGE[J]. Engineering Mechanics, 2007, 24(6): 185-188,164 |
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| Authors: | HUANG Yan LAN Wei-ren |
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| Affiliation: | 1 .College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China; 2. Head General Staff Meteorological and Hydrological Center, Beijing 100081, China |
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| Abstract: | Based on the nonlinear geometric relation between strain and displacement of flexible cable, the equilibrium equation under self-weight and influence of temperature are established and an analytical solution of displacement and tension distribution defined in Eulerian coordinate system is accurately obtained. The nonlinear algebraic equations caused by flexible transmission lines with high voltage are solved directly using the modified Powell hybrid algorithm in DNEQNE program. Numerical results from the deformation analysis of flexible transmission lines are presented and compared with the results appeared in recent related literature. The examples demonstrate that the proposed method is more efficient and convenient than others for the nonlinear deformation analysis of flexible cables. |
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| Keywords: | flexible cable nonlinear deformation analytical method transmission line displacement tension |
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