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Proceedings Paper

MEMS inertial sensors for load monitoring of wind turbine blades
Author(s): Aubryn M. Cooperman; Marcias J. Martinez
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Paper Abstract

Structural load monitoring of wind turbines is becoming increasingly important due increasing turbine size and offshore deployment. Rotor blades are key components that can be monitored by continuously measuring their deflection and thereby determining strain and loads on the blades. In this paper, a method is investigated for monitoring blade deformation that utilizes micro-electromechanical systems (MEMS) comprising triaxial accelerometers, magnetometers and gyroscopes. This approach is demonstrated using a cantilever beam instrumented with 5 MEMS and 4 strain gauges. The measured changes in angles obtained from the MEMS are used to determine a deformation surface which is used as an input to a finite element model in order to estimate the strain throughout the beam. The results are then verified by comparison with strain gauge measurements.

Paper Details

Date Published: 27 March 2015
PDF: 9 pages
Proc. SPIE 9439, Smart Materials and Nondestructive Evaluation for Energy Systems 2015, 94390A (27 March 2015); doi: 10.1117/12.2082926
Show Author Affiliations
Aubryn M. Cooperman, Technische Univ. Delft (Netherlands)
Marcias J. Martinez, Technische Univ. Delft (Netherlands)

Published in SPIE Proceedings Vol. 9439:
Smart Materials and Nondestructive Evaluation for Energy Systems 2015
Norbert G. Meyendorf, Editor(s)

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