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| 基于动力相似的塔线体系试验模型设计及分析 |
| Design and analysis of test model of tower-line system based on dynamic similarity theory |
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| DOI： |
| 中文关键词: 输电线路；相似理论；动力特性；试验模型 |
| 英文关键词: transmission line; similarity theory; dynamic characteristic; test mode |
| 基金项目:国家自然科学基金资助项目(11272119)；湖南省教育厅重点项目(12A052) |
| 作者 | 单位 | | 谢献忠，谭勇，李丹，龙昊 | 湖南科技大学 土木工程学院，湖南 湘潭 411201 |
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| 中文摘要: |
| 以动力相似理论为基础，采用量纲分析法求得塔线体系试验模型与原型的相似关系，进而确定了相似比，设计了干字塔、酒杯塔和导线地线的试验模型.建立了塔线体系试验模型和原型的有限元计算模型，并进行了静力和动力分析.通过对相关参数的比较研究，验证了试验模型与原型的互推性以及相似关系的正确性，基于该模型的试验分析结果能够反映结构原型的动力特性和规律.该试验模型的设计过程可为其他同类试验模型的相似设计提供参考. |
| 英文摘要: |
| Based on dynamic similarity theory, dimensional analysis was adopted to acquire the similar relationship between the test model of tower-line system and its prototype, and then the similarity ratio was determined which was employed in designing gan-shaped tower, glass-shaped tower and test model of conductors and ground wires. Next, the finite element model of tower-line system and its prototype was established, followed by static and dynamic analysis. Through the comparative studies of relevant parameters, It found that the similarity relationships between test model and its prototype was correct and could be derived from each other. So the experimental result based on this test model reflect dynamic property and rules of structure prototype. The design process of the test model provided reference for other similar test model as well. |
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