The Influence of Crack Parameters on the Static and Dynamic Frequency of Wind Turbine Blades

DOI

10.2991/icmmita-16.2016.260How to use a DOI?

Keywords

blade crack;static and dynamic frequency;crack position;crack depth

Abstract

In this paper, the static and dynamic equations of the blade are derived, the comparison between analytical method and finite element analysis results. Finding the error of the two methods is less than 1%. The influence of the distribution characteristics of the blade crack on the static and dynamic frequency was studied by using ANSYS software. The result shows that the influence of crack direction on frequency is similar, the effect of the different speed on the dynamic frequency of the blade is not the same.With the change of crack position, the dynamic and static frequency of the blade decreases and then increases.The deeper the crack depth, the lower the dynamic and static frequency of the blade.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yonggang Liu
AU  - Yazhou MaO
AU  - Dongying Li
PY  - 2017/01
DA  - 2017/01
TI  - The Influence of Crack Parameters on the Static and Dynamic Frequency of Wind Turbine Blades
BT  - Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications
PB  - Atlantis Press
SP  - 1109
EP  - 1113
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmita-16.2016.260
DO  - 10.2991/icmmita-16.2016.260
ID  - Liu2017/01
ER  -