Full-scale validation of FE models for geometrically imperfect flange connections

被引：15

作者：

Seidel, Marc ^{[1
]}

Stang, Andre ^{[2
]}

Wegener, Filip ^{[3
]}

Schierl, Christopher ^{[2
]}

Schaumann, Peter ^{[2
]}

机构：

[1] Siemens Gamesa Renewable Energy GmbH & Co KG, Beim Strohhause 17-31, D-20097 Hamburg, Germany

[2] Leibniz Univ Hannover, Inst Steel Construct IfS, Appelstr 9A, D-30167 Hannover, Germany

[3] Jorss Blunck Ordemann GmbH, Kaiser Wilhelm Str 50, D-20355 Hamburg, Germany

来源：

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2021年 / 187卷

关键词：

Flange connection; Wind turbine; Tower; Imperfections; Full-scale measurements;

D O I：

10.1016/j.jcsr.2021.106955

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Geometrical imperfections are an important aspect for fatigue design of bolted ring flange connections, particularly for support structures of wind turbines. This paper deals with the validation of 3D FEA models including such imperfections. Measurements from a 1.5 MW onshore wind turbine tower are compared against numerical results from two independently built FE models. The results show that the effect of imperfections, which have only been measured at the tower manufacturer, can be qualitatively well predicted by the FEA model. Furthermore, the results from the two completely independent models are almost identical, giving confidence that results can be reproduced. Recommendations for building FEA models are given, such that designers wishing to use idealized or measured imperfections for design purposes have guidance.

引用

页数：16

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