Improving Structural Safety of L-Type Flange Joint for Wind Towers

被引：6
|
作者：
Tran, Thanh-Tuan [1 ,2 ]
Kang, Sangkyun [3 ]
Lee, Daeyong [1 ]
机构：
[1] Kunsan Natl Univ, Inst Offshore Wind Energy, 558 Daehak-ro, Gunsan 54150, South Korea
[2] Ho Chi Minh City Open Univ, Fac Civil Engn, Dept Struct Engn, Adv Struct Engn Lab, Ho Chi Minh 700000, Vietnam
[3] Kunsan Natl Univ, Dept Mech Engn, 558 Daehak ro, Gunsan 54150, South Korea
来源：
ENERGIES | 2022年 / 15卷 / 23期
基金：
新加坡国家研究基金会;
关键词：
wind tower; L-type flange joint; failure mode; finite element modeling; FAILURE;
D O I：
10.3390/en15238967
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper focuses on the design modification of L-type flange joint geometry in wind towers, aiming to enhance its structural safety. For this aim, current design issues of existing flange joints are discussed. The numerical simulations indicate that the threaded bolt and flange-to-shell junction are critical locations where failure may happen. Further discussion to improve structural safety is applied for an existing 5 MW flange joint. Through parametric studies, the major factors influencing ultimate strength are identified. The results show that the aspect ratio plays an important role in increasing the structural safety of the flange joints, while the width of the flange segment weakens the stiffness of the flange-to-shell junction. The findings in this study are expected to provide a useful reference for designing the L-type flange joints in practical engineering fields.
引用
收藏
页数：14
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