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
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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}
}
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}
}