| 传递矩阵法在风力机塔架动力学分析中的应用 |
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| 引用本文： | 黄巍,廖明夫,程勇.传递矩阵法在风力机塔架动力学分析中的应用[J].科学技术与工程,2012,12(7):1548-1553. |
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| 作者姓名： | 黄巍 廖明夫 程勇 |
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| 作者单位： | 西北工业大学旋转机械与风能装置测控研究所,西安,710072 |
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| 摘 要： | 根据风力机圆筒型塔架和基础的结构特点，将塔筒简化为无质量梁单元和集中质量单元的组合，并将塔架基础简化为平动弹簧阻尼系统和扭簧扭阻系统的组合。使用传递矩阵法构建了风力机塔架及其基础的动力学分析模型。对某滩涂型风力机塔架进行了自振频率及振型分析，分析结果同测试结果和有线元结果基本相同。传递矩阵法相对于模态分析法和有限元法具有建模容易，计算速度快等优点，非常适合风力机塔架的结构动力学分析。
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| 关 键 词： | 风力机塔架、传递矩阵、自振频率、振型 |
| 收稿时间： | 12/9/2011 5:05:36 PM |
| 修稿时间： | 2011/12/20 0:00:00 |
Dynamic Analysis of Wind Turbine Tower |
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| huang wei,liao mingfu and cheng yong.Dynamic Analysis of Wind Turbine Tower[J].Science Technology and Engineering,2012,12(7):1548-1553. |
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| Authors: | huang wei liao mingfu and cheng yong |
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| Institution: | (Institute of Monitoring and Control for Rotating Machinery and Wind Turbines, Northwestern Polytechnical University,Xi’an 710072,P.R.China) |
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| Abstract: | According to the structural properties of tubular wind turbine tower and foundation, the tower was simplified as a combination of no mass beam elements and lumped mass elements; the foundation was simplified as a combination of normal spring-damping system and torsional spring-damping system. The dynamic analysis model of tower was established by the transfer matrix method. The natural frequency and mode shape of a foreshore wind turbine tower was calculated. The results are similar with finite element method and measurement results. Comparing with finite element method, the advantage of transfer matrix method is its easier modeling process and faster calculation. Therefore, it is very suitable for analyzing the dynamic behavior of wind turbine tower. |
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| Keywords: | wind turbine tower transfer matrix natural frequency mode shape |
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