兆瓦级风力发电机组塔架强度分析  

Strength Analysis for Multi-MW Wind Turbine Tower

作　　者：易权[1] 尚刚[1] 蔡全[1] 

机构地区：[1]南车株洲电力机车研究所有限公司风电事业部,湖南株洲412001

出　　处：《机械制造与自动化》2012年第1期178-180,共3页Machine Building & Automation

摘　　要：塔架的强度分析包括极限强度分析和疲劳强度分析。极限强度分析是指塔架在极限载荷作用下,得出各截面的Von Misses应力,再与材料的许用应力比较判断。对作用在塔架上的疲劳载荷谱,通过通道合并和雨流统计得到各焊址处的等效疲劳载荷,并结合S-N曲线进行疲劳损伤判断。Tower strength analysis contains ultimate strength analysis and fatigue analysis. This paper calculates Von Misses stress under the ultimate load acting on tower section and compares this stress with the allowed stress. According to the role of fatigue in the tower, through the channel merging and welding site, it also gets the equivalent fatigue load by rain-flow statistics, and combines S-N curves to judge the fatigue damage.

关 键 词：风力发电机组 塔架 强度 疲劳 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]