公开(公告)号：WO2015085078A1

公开(公告)日：2015-06-11

申请号：PCT/US2014/068591

申请日：2014-12-04

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： MORRIS, Robert J. ,  BENEDICT, Barry K.

IPC: F01D5/16 ,  F01D5/18

CPC classification number: F01D5/16 ,  F01D5/147 ,  F05D2220/323 ,  F05D2240/30 ,  F05D2250/22 ,  F05D2250/23 ,  F05D2250/231 ,  F05D2260/96 ,  Y02T50/672

Abstract: A hollow blade of a gas turbine engine has a sacrificial elongated damper disposed slideably in a chamber for minimizing modes of vibration during operation. The chamber is defined between two opposing surfaces generally spanning radially outward from an axis of the engine and a face facing radially inward. The damper is constructed and arranged to make loaded contact with the face via a centrifugal force created by rotation of the engine.

Abstract translation: 燃气涡轮发动机的中空叶片具有可滑动地设置在腔室中的牺牲细长阻尼器，用于使操作期间的振动模式最小化。 腔室被限定在两个相对的表面之间，通常从发动机的轴线径向向外延伸，以及面向径向向内的面。 阻尼器被构造和布置成通过由发动机的旋转产生的离心力而与面部进行负载接触。