Finite-element analysis and modal testing of a rotating wind turbine

Technical Report · Fri Oct 01 00:00:00 EDT 1982

OSTI ID:6739602

Carne, T G; Lobitz, D W; Nord, A R; Watson, R A

A finite element procedure, which includes geometric stiffening, and centrifugal and Coriolis terms resulting from the use of a rotating coordinate system, has been developed to compute the mode shapes and frequencies of rotating structures. Special application of this capability has been made to Darrieus, vertical axis wind turbines. In a parallel development effort, a technique for the modal testing of a rotating vertical axis wind turbine has been established to measure modal parameters directly. Results from the predictive and experimental techniques for the modal frequencies and mode shapes are compared over a wide range of rotational speeds.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6739602
• Report Number(s): SAND-82-0345; ON: DE83002609
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
DARRIEUS ROTORS
MECHANICAL VIBRATIONS
OSCILLATION MODES
ANGULAR VELOCITY
EXPERIMENTAL DATA
FINITE ELEMENT METHOD
FOURIER TRANSFORMATION
SPECTRAL RESPONSE
TESTING
DATA
INFORMATION
INTEGRAL TRANSFORMATIONS
NUMERICAL DATA
NUMERICAL SOLUTION
ROTORS
TRANSFORMATIONS
VELOCITY
170602* - Wind Energy Engineering- Turbine Design & Operation