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USE OF ACTIVE MATERIALS FOR CONTROL OF PROPELLER BLADE TWIST AND ITS INFLUENCE ON PROPELLER EFFICIENCY

Citace: KLESA, J. USE OF ACTIVE MATERIALS FOR CONTROL OF PROPELLER BLADE TWIST AND ITS INFLUENCE ON PROPELLER EFFICIENCY. Portorož, Slovinsko, 2013.
Druh: PŘEDNÁŠKA, POSTER
Jazyk publikace: eng
Anglický název: USE OF ACTIVE MATERIALS FOR CONTROL OF PROPELLER BLADE TWIST AND ITS INFLUENCE ON PROPELLER EFFICIENCY
Rok vydání: 2013
Autoři: Ing. Jan Klesa Ph.D. ,
Abstrakt EN: Progress in the field of adaptive materials and structures brings the possibility to build propeller blades with variable twist so that blade twist and lift distribution can be optimal under any flight condition and so propeller efficiency can be increased. Current paper analyses the possible increase of propeller efficiency by using the variable-twist blades and also tries to explain related phenomena. Possible increase of efficiency is analysed by comparison of the variable-twist propeller with conventional constant-speed propeller. Both propellers have identical blade chord distribution and use the same airfoils. Optimal lift distribution according to Goldstein theory is achieved by the variable-twist for every flight condition. Blade element method was used for the computations. Benefits of using variable-twist blades are discussed.
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