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DAMPER RING FOR A ROTOR STAGE
专利权人:
ROLLS-ROYCE PLC
发明人:
EDWARDS, GARRY
申请号:
EP20160160340
公开号:
EP3081750(A1)
申请日:
2016.03.15
申请国别(地区):
欧洲专利局
年份:
2016
代理人:
摘要:
A rotor stage (100) of a gas turbine engine (10) comprises a platform (120) from which rotor blades extend. The platform is provided with a circumferentially extending damper ring (200), the damper ring having an engagement surface (210) that engages with the platform. The damper ring has a cross-sectional shape perpendicular to the circumferential direction that has a depth (a) in the radial direction, and a neutral bending axis (250) that is spaced (b) from the engagement surface by more than half of the depth. Increasing the spacing between the engagement surface and the neutral bending axis increases the amount of slip at the interface between the damper ring and the platform, thereby increasing the amount of frictional damping.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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