Deformable aerodynamic profile
First Claim
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1. A deformable aerodynamic profiled member comprising:
- a front profile area;
a rear profile area;
shells which bound the profiled member on a pressure side and on a suction side, which shells converge in a rear profile edge; and
deforming means for varying a curvature of said profiled member by changing length of at least one of said shells in a desired direction;
wherein,said deforming means comprises at least one d33 piezo actuator mounted on said at least one shell; and
said at least one piezo actuator is arranged on said at least one shell with an orientation such that a change of length of said at least one piezo actuator cause a change of length in a plane of said at least one shell in said desired direction, and a corresponding deformation of said profile, when said at least one actuator is acted upon by electricity.
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Abstract
A deformable aerodynamic profiled member has a front profile area and a rear profile area in the outflow area. It is bounded by shells on the pressure side and/or on the suction side, converging in a rear profile edge (6). D33 piezo actuators are provided in at least some locations for deformation of the profiled member. The piezo actuators are aligned such that their length changes essentially in the direction of the planes of the shells when acted upon by electricity.
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Citations
11 Claims
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1. A deformable aerodynamic profiled member comprising:
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a front profile area; a rear profile area; shells which bound the profiled member on a pressure side and on a suction side, which shells converge in a rear profile edge; and deforming means for varying a curvature of said profiled member by changing length of at least one of said shells in a desired direction;
wherein,said deforming means comprises at least one d33 piezo actuator mounted on said at least one shell; and said at least one piezo actuator is arranged on said at least one shell with an orientation such that a change of length of said at least one piezo actuator cause a change of length in a plane of said at least one shell in said desired direction, and a corresponding deformation of said profile, when said at least one actuator is acted upon by electricity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification