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1. WO2013007641 - DAMPED ROTOR BLADE

Publication Number WO/2013/007641
Publication Date 17.01.2013
International Application No. PCT/EP2012/063273
International Filing Date 06.07.2012
IPC
B64C 27/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
B64C 27/72 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
54Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
72Means acting on blades
B64C 27/51 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
51Damping of blade movements
CPC
B64C 27/001
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
001Vibration damping devices
B64C 27/51
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
51Damping of blade movements
B64C 27/72
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
54Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
72Means acting on blades
Y02T 50/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
50Aeronautics or air transport
30Wing lift efficiency
Applicants
  • DEUTSCHES ZENTRUM FÜR LUFT- UND RAUMFAHRT E.V. [DE]/[DE] (AllExceptUS)
  • HOFMANN, Johannes [DE]/[DE] (UsOnly)
Inventors
  • HOFMANN, Johannes
Agents
  • AISCH, Sebastian
Priority Data
10 2011 107 475.208.07.2011DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) GEDÄMPFTES ROTORBLATT
(EN) DAMPED ROTOR BLADE
(FR) PALE DE ROTOR AMORTIE
Abstract
(DE)
Rotorblatt (1) mit mindestens einem an dem Rotorblatt angeordneten piezoelektrischen Dämpfungselement (2) und mit mindestens einer Dämpfungssteuerung, die zum Ansteuern des mindestens einen piezoelektrischen Dämpfungselements mittels elektrischer Energie eingerichtet ist, wobei das mindestens eine piezoelektrische Dämpfungselement zum Aufbringen einer Kraft mittels der elektrischen Energie auf das Rotorblatt ausgebildet ist und mit dem Rotorblatt derart zusammenwirkt, dass eine Verformung des Rotorblattes durch die aufgebrachte Kraft des piezoelektrischen Dämpfungselements gedämpft wird.
(EN)
The invention relates to a rotor blade (1) comprising at least one piezoelectric damping element (2) mounted on the rotor blade and at least one damping control which is designed to control the at least one piezoelectric damping element by means of electrical energy. The at least one piezoelectric damping element is designed such that it can exert a force onto the rotor blade due to the electrical energy and interacts with the rotor blade such as to dampen any deformation of the rotor blade due to the force exerted by the piezoelectric damping element.
(FR)
L'invention concerne une pale de rotor comportant au moins un élément d'amortissement piézoélectrique situé sur la pale de rotor et au moins une commande d'amortissement conçue pour commander ledit élément d'amortissement piézoélectrique à l'aide d'énergie électrique. Ledit élément d'amortissement piézoélectrique est conçu pour appliquer une force sur la pale de rotor au moyen de ladite énergie électrique et coopère avec la pale de rotor de manière à amortir la déformation de la pale de rotor par la force appliquée par ledit élément d'amortissement piézoélectrique.
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