Similitude analysis of thin-walled composite I-beams for subcomponent testing of wind turbine blades

被引：14

作者：

Eydani Asl, Mohamad ^{[1
]}

Niezrecki, Christopher ^{[1
]}

Sherwood, James ^{[1
]}

Avitabile, Peter ^{[1
]}

机构：

[1] Department of Mechanical Engineering, University of Massachusetts–Lowell, Lowell,MA, United States

来源：

Wind Engineering | 2017年 / 41卷 / 05期

基金：

美国国家科学基金会;

关键词：

Thin walled structures - Turbine components - Turbomachine blades - Scaling laws;

D O I：

10.1177/0309524X17709924

中图分类号：

学科分类号：

摘要：

In this study, the I-beam structure of a utility-scale blade is used as the basis for the design of a small-scale subcomponent emulating the same type of structural element of a utility-scale wind turbine blade. Governing equations for the bending of a shear deformable thin-walled composite I-beam are considered. Similitude theory is applied to derive the corresponding scaling laws. Accuracy of the derived scaling laws in predicting the strain and displacement fields of the full-scale I-beam is considered as a design criterion for small-scale I-beams. Both complete and partial similarity cases are discussed. A novel approach is proposed to design partially similar scaled I-beams with totally different layups from those of the full-scale I-beam. Using the proposed technique, scaled-down composite I-beams are designed that predict the strain and displacement fields of their full-scale parent I-beam with very good accuracy. © 2017, © The Author(s) 2017.

引用

页码：297 / 312