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The calculation of the responses of the Flexteeter configuration for a number of load conditions; Berekening van de responsies van de Flexteeterconfiguratie bij een aantal belastingscondities

Technical Report:

Abstract

Within the framework of the Flexhat (Flexible Horizontal Axis Turbines) project a rotor has been developed equipped with passive control blade tips, a hinged rotor suspension and a flap-flexible blade root: the so-called Flexteeter configuration. The rotor was constructed to be tested on the 25 meter rotor test facility of the Netherlands Energy Research Foundation ECN, Petten, Netherlands. To assess the safe operation of the rotor before the construction the performance of the rotor has been calculated for a number of operational conditions by means of the computer program FLEXLAST. Comparative calculations by means of another program (PHATAS-II) were needed, because of the special parts of the rotor configuration. The calculations were carried out for 9 different load cases. A brief description is given of the modeling of the configuration, and a comparative evaluation of the results is presented. The blade loads calculated with the computer programs compare fairly well. The same goes for the calculated control performance of the passive control blade tips. The PHATAS-II calculated response in the reciprocating movement however is considerably higher (up to 2 times) than calculated by FLEXLAST, which is probably caused by the difference in the description of the tip loss factor. 15  More>>
Authors:
Lindenburg, C; Dekker, J W.M. [1] 
  1. Netherlands Energy Research Foundation, Petten (Netherlands)
Publication Date:
Jun 01, 1991
Product Type:
Technical Report
Report Number:
ECN-C-91-054
Reference Number:
SCA: 170602; PA: ECN-91.664; SN: 91000585483
Resource Relation:
Other Information: PBD: Jun 1991
Subject:
17 WIND ENERGY; HORIZONTAL AXIS TURBINES; ROTORS; PERFORMANCE TESTING; RESPONSE FUNCTIONS; F CODES; COMPARATIVE EVALUATIONS; P CODES; WIND LOADS; COMPUTER CALCULATIONS; COMPUTERIZED SIMULATION; NUMERICAL DATA; 170602; TURBINE DESIGN AND OPERATION
OSTI ID:
10103828
Research Organizations:
Netherlands Energy Research Foundation (ECN), Petten (Netherlands)
Country of Origin:
Netherlands
Language:
Dutch
Other Identifying Numbers:
Other: ON: DE92721430; CNN: Contract NOVEM 24.300/2020; Contract CEG EN3W-0064-NL; TRN: 91.664
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
ECN
Size:
56 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Lindenburg, C, and Dekker, J W.M. The calculation of the responses of the Flexteeter configuration for a number of load conditions; Berekening van de responsies van de Flexteeterconfiguratie bij een aantal belastingscondities. Netherlands: N. p., 1991. Web.
Lindenburg, C, & Dekker, J W.M. The calculation of the responses of the Flexteeter configuration for a number of load conditions; Berekening van de responsies van de Flexteeterconfiguratie bij een aantal belastingscondities. Netherlands.
Lindenburg, C, and Dekker, J W.M. 1991. "The calculation of the responses of the Flexteeter configuration for a number of load conditions; Berekening van de responsies van de Flexteeterconfiguratie bij een aantal belastingscondities." Netherlands.
@misc{etde_10103828,
title = {The calculation of the responses of the Flexteeter configuration for a number of load conditions; Berekening van de responsies van de Flexteeterconfiguratie bij een aantal belastingscondities}
author = {Lindenburg, C, and Dekker, J W.M.}
abstractNote = {Within the framework of the Flexhat (Flexible Horizontal Axis Turbines) project a rotor has been developed equipped with passive control blade tips, a hinged rotor suspension and a flap-flexible blade root: the so-called Flexteeter configuration. The rotor was constructed to be tested on the 25 meter rotor test facility of the Netherlands Energy Research Foundation ECN, Petten, Netherlands. To assess the safe operation of the rotor before the construction the performance of the rotor has been calculated for a number of operational conditions by means of the computer program FLEXLAST. Comparative calculations by means of another program (PHATAS-II) were needed, because of the special parts of the rotor configuration. The calculations were carried out for 9 different load cases. A brief description is given of the modeling of the configuration, and a comparative evaluation of the results is presented. The blade loads calculated with the computer programs compare fairly well. The same goes for the calculated control performance of the passive control blade tips. The PHATAS-II calculated response in the reciprocating movement however is considerably higher (up to 2 times) than calculated by FLEXLAST, which is probably caused by the difference in the description of the tip loss factor. 15 figs., 4 tabs., 8 refs.}
place = {Netherlands}
year = {1991}
month = {Jun}
}