Piezoelektrische Dämpfungsringe

Details

Veröffentlichungs-Nr.

EP3002414

Aktenzeichen

EP15184098

Anmeldetag

7. September 2015

Veröffentlichung

29. November 2017

Erteilung

29. November 2017

Rechtsraum

EP

IPC

G10K11/00F04D29/32F01D5/12F01D5/10F04D29/66F01D5/34F01D25/04

Abstract

A blisk assembly for vibration dampening includes a disk portion extending circumferentially about a central axis of the blisk, a plurality of blades integrally coupled to the disk, and a piezoelectric damping ring that includes a damping ring and a plurality of piezoelectric elements coupled to the damping ring. The disk portion includes a groove configured to receive the piezoelectric damping ring. As a result of centrifugal forces applied to the piezoelectric damping ring during rotation of the blisk assembly, mechanical energy may be generated at one or more of the plurality of piezoelectric elements, which is converted to electrical energy and transmitted to another one or more of the plurality of piezoelectric elements. Accordingly, the one or more of the piezoelectric elements having received the electricity can convert the electricity to mechanical energy to provide vibration damping.

Anmelder

Firma

Rolls-Royce Corporation

Land

🇺🇸 USA

Fachgebiete