公开(公告)号：US20180258854A1

公开(公告)日：2018-09-13

申请号：US15452614

申请日：2017-03-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Dmitriy B. Sidelkovskiy ,  Bruce L. Morin ,  David A. Anderson

IPC: F02C7/045

Abstract: A flutter damper is disclosed, which includes a chamber configured to fluidly communicate with a gas flow, the chamber being filled with an open celled foam bulk damper, and wherein the chamber is configured for peak acoustical energy absorption at a frequency range that is associated with one or more fan flutter modes.

公开(公告)号：US10422280B2

公开(公告)日：2019-09-24

申请号：US15452614

申请日：2017-03-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Dmitriy B. Sidelkovskiy ,  Bruce L. Morin ,  David A. Anderson

IPC: F02C7/045 ,  F02K1/82 ,  B64D33/02

Abstract: A flutter damper is disclosed, which includes a chamber configured to fluidly communicate with a gas flow, the chamber being filled with an open celled foam bulk damper, and wherein the chamber is configured for peak acoustical energy absorption at a frequency range that is associated with one or more fan flutter modes.