公开(公告)号：US20190241258A1

公开(公告)日：2019-08-08

申请号：US16316872

申请日：2017-05-12

Applicant: SIKORSKY AIRCRAFT CORPORATION ,  United Technologies Corporation

Inventor： Derek Geiger ,  Seung Bum Kim ,  Claude G. Matalanis ,  Brian E. Wake ,  Patrick Bowles

IPC: B64C27/00 ,  G01B11/16

CPC classification number: B64C27/008 ,  B64C27/473 ,  B64D45/00 ,  F03D17/00 ,  F05B2270/804 ,  G01B11/16

Abstract: A rotor blade deflection sensing system including a rotor blade having a first surface, a second surface, a third surface and a fourth surface. At least two fiber optic sensor arrays are mounted to the rotor blade. At least one of the at least two fiber optic sensor arrays is mounted to one of the first surface, the second surface, the third surface and the fourth surface and another of the at least two fiber optic sensor arrays being mounted to another of the first surface, a second surface, a third surface and a fourth surface. A controller is operatively connected to the at least two fiber optic sensor arrays. The controller determines one or more of a flapwise and an edgewise displacement based on inputs from the at least two fiber optic sensor arrays.

公开(公告)号：US10415419B2

公开(公告)日：2019-09-17

申请号：US15406324

申请日：2017-01-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Lee A. Hoffman ,  Hailing Wu ,  Seung Bum Kim ,  Michael G. McCaffrey ,  Joel H. Wagner

IPC: F01D11/22 ,  F01D11/18

Abstract: A system for modulating turbine blade tip clearance is provided. The system may comprise an actuation control system having at least one actuator configured to modulate turbine blade tip clearance between a turbine blade tip and a blade outer air seal (BOAS). Each actuator may be coupled to the BOAS. Each actuator may comprise a solid-state motion amplification device such as a flextensional actuator. The actuators may be configured to move the BOAS in a radial direction from a first position to a second position to control tip clearance.

公开(公告)号：US20190010823A1

公开(公告)日：2019-01-10

申请号：US15406324

申请日：2017-01-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Lee A. Hoffman ,  Hailing Wu ,  Seung Bum Kim ,  Michael G. McCaffrey ,  Joel H. Wagner

IPC: F01D11/22 ,  F01D11/18 ,  F03G7/06

CPC classification number: F01D11/22 ,  F01D11/18 ,  F05D2240/11 ,  F05D2300/505

Abstract: A system for modulating turbine blade tip clearance is provided. The system may comprise an actuation control system having at least one actuator configured to modulate turbine blade tip clearance between a turbine blade tip and a blade outer air seal (BOAS). Each actuator may be coupled to the BOAS. Each actuator may comprise a solid-state motion amplification device such as a flextensional actuator. The actuators may be configured to move the BOAS in a radial direction from a first position to a second position to control tip clearance.