Modal testing of a very flexible 110 m wind turbine structure

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:5719853

Carne, T G; Lauffer, J P; Gomez, A J; Benjannet, Hassine

Modal Testing of immense and very flexible structures poses a number of problems. It requires innovative excitation techniques since the modal frequencies of these stuctures can be quite low. Also, substantial energy must be input to the structure to obtain reasonable levels of response. In this paper, results are presented from a modal test of the 110 m tall EOLE wind turbine which had four modal frequencies below 1.0 Hz. Step-relaxation and wind were used to excite the structure. 5 refs., 14 figs., 2 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA); Shawinigan Engineering Co. Ltd., Montreal, Quebec (Canada)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5719853
• Report Number(s): SAND-87-1507C; CONF-880220-9; ON: DE88003796
• Resource Relation: Conference: 6. international modal analysis conference, Orlando, FL, USA, 1 Feb 1988; Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
VERTICAL AXIS TURBINES
MECHANICAL VIBRATIONS
OSCILLATION MODES
EXPERIMENTAL DATA
FREQUENCY RESPONSE TESTING
TESTING
DATA
INFORMATION
MACHINERY
NUMERICAL DATA
TURBINES
TURBOMACHINERY
WIND TURBINES
170602* - Wind Energy Engineering- Turbine Design & Operation