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Static and dynamic characteristics of multi-cell jointed GFRP wind turbine towers

机译：多单元联合玻璃纤维增​​强风力发电机塔架的静态和动态特性

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摘要

An extensive research project is currently being carried out at the University of Manitoba, Canada, involving the development of glass fiber-reinforced polymer (GFRP) wind turbine towers. The towers consist of multi-cell segments, each segment constructed from eight filament wound cells jointed together with resin applied over their interface. The present paper mainly addresses the static and dynamic characteristics, such as failure static loads, modes of failure, fundamental frequencies and periods of such segmented composite towers. Both experimental and numerical results are presented. The experimental investigation involved the testing of two jointed scaled towers. These specimens had a total height of 4.88-m (16-ft) and were tested as cantilevers under static and dynamic loading. The testing was conducted at the W.R. McQuade Structural Engineering Laboratory of the University of Manitoba. Finally, finite element models were developed to analyze the structural behavior, static and dynamic, of single and multi-cell composite segments and towers. The results from the finite element models under static loading were validated through comparison with the experimental results.
机译：加拿大曼尼托巴大学目前正在开展一项广泛的研究项目，其中涉及玻璃纤维增​​强聚合物（GFRP）风力涡轮机塔架的开发。塔由多单元组成，每个单元由八个缠绕在电池上的细丝缠绕的单元构成，并在其界面上施加树脂。本文主要针对此类分段复合塔的静，动态特性，如失效静载荷，失效模式，基频和周期。给出了实验和数值结果。实验研究包括测试两个节理的比例塔。这些标本的总高度为4.88米（16英尺），并在静态和动态载荷下作为悬臂梁进行了测试。该测试是在曼尼托巴大学的W.R. McQuade结构工程实验室进行的。最后，开发了有限元模型来分析单孔和多孔复合节段和塔架的结构特性（静态和动态）。通过与实验结果的比较验证了有限元模型在静态载荷下的结果。

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