Natural Frequency Analysis of a Wind Turbine Tower

doi:10.3969/j.issn.1006-1355.2017.04.007

›› 2017, Vol. 37 ›› Issue (4): 30-33.DOI: 10.3969/j.issn.1006-1355.2017.04.007

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Natural Frequency Analysis of a Wind Turbine Tower

Received:2017-01-06 Revised:2017-03-10 Online:2017-08-18 Published:2017-08-18

大型风力机塔架固有频率分析

曾梦伟1，魏克湘1，李颖峰2，颜熹1

（ 1. 湖南工程学院机械工程学院，湖南湘潭 411104； 2. 湘电风能有限公司，湖南湘潭 411101 ）

通讯作者: 曾梦伟

Abstract

摘要：

以2 MW水平轴风力发电机组为研究对象，基于有限元分析对风机整体结构进行数值仿真。主要研究地基土刚度、塔顶质量、混凝土基础、塔筒门洞、塔筒休息平台对风机整体结构固有频率的影响规律。仿真结果显示：风机整体结构固有频率随塔顶质量的增大而呈现减小趋势，风机叶片、轮毂和机舱设计可适当选择轻质量的材料；整体结构固有频率随地基土刚度的增加而快速增加，但增加到一定数值时这种趋势逐渐减小；塔筒底部简化为刚性约束将导致分析结果误差较大。

关键词: 振动与波, 风力发电机组, 固有频率, 有限元分析, 结构动力学

CLC Number:

TH113.1

曾梦伟1，魏克湘1，李颖峰2，颜熹1. 大型风力机塔架固有频率分析[J]. 噪声与振动控制, 2017, 37(4): 30-33.

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Natural Frequency Analysis of a Wind Turbine Tower

大型风力机塔架固有频率分析

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