| 覆冰导线任意方向驰振分析方法 |
| |
| 引用本文： | 马文勇,顾明,全涌,黄鹏.覆冰导线任意方向驰振分析方法[J].同济大学学报(自然科学版),2010,38(1). |
| |
| 作者姓名： | 马文勇 顾明 全涌 黄鹏 |
| |
| 作者单位： | 同济大学,土木工程防灾国家重点实验室,上海,200092 |
| |
| 基金项目： | 国家自然科学基金创新研究群体基金，国家自然科学基金重点项目 |
| |
| 摘 要： | 在分析传统单自由度驰振激发机理的基础上,推导任意风向作用下覆冰导线在任意振动方向的单自由度驰振判别式,从理论上证明顺风向驰振发生的可能性.分别运用DenHartog,Nigol判别式和上述判别式,分析风洞试验得到的准椭圆形覆冰导线模型气动力,判断准椭圆形覆冰导线发生驰振的可能性.结果表明,对覆冰导线,该方法不仅可得到可能发生驰振的风向,还可判断可能发生驰振的振动方向.
|
| 关 键 词： | 覆冰导线 任意方向 驰振 分析方法 |
Analysis Method of Galloping in Arbitrary Directions of Iced Conductors |
| |
| MA Wenyong,GU Ming,QUAN Yong and HUANG Peng.Analysis Method of Galloping in Arbitrary Directions of Iced Conductors[J].Journal of Tongji University(Natural Science),2010,38(1). |
| |
| Authors: | MA Wenyong GU Ming QUAN Yong and HUANG Peng |
| |
| Institution: | MA Wenyong,GU Ming,QUAN Yong,HUANG Peng(State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China) |
| |
| Abstract: | Based on the analysis of galloping mechanism of a single degree-of-freedom system,the criterion for galloping in arbitrary directions of quasi-oval shape iced conductors is derived,and the occurrence possibility of along-wind galloping is also theoretically proved in this paper.Then,DenHartog criterion,Nigol criterion and the galloping criterion proposed in this paper are applied to analyzing the aerodynamic forces of quasi-oval shape iced conductors obtained from wind tunnel tests.The results indicate that... |
| |
| Keywords: | iced conductor arbitrary direction galloping analysis method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《同济大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《同济大学学报(自然科学版)》下载免费的PDF全文 |
|
