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    • 26. 发明申请
    • ROTOR DAMPER
    • 转子阻尼器
    • US20160298460A1
    • 2016-10-13
    • US15094415
    • 2016-04-08
    • ROLLS-ROYCE PLC
    • Michael F BRYANTGarry M. EDWARDS
    • F01D5/10
    • F01D5/10F01D5/16F01D5/30F01D5/34F05D2220/32F05D2240/20F05D2240/80F05D2260/96
    • 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 a platform engagement surface (110) of the platform (120). In use, the damper engagement surface (210) and the platform engagement surface (110) move relative to each other in a radial direction, in response to diametral mode excitation. This causes friction between the two surfaces, thereby dissipating energy and damping the excitation. The rotor stage (100) is arranged such that the engagement load between the damper engagement surface (210) and the platform engagement surface (110) is a function of the rotational speed of the rotor stage (100).
    • 燃气涡轮发动机(10)的转子平台(100)包括转子叶片延伸的平台(120)。 平台设置有周向延伸的阻尼环(200),阻尼环具有与平台(120)的平台接合表面(110)接合的接合表面(210)。 在使用中,响应于直径模式激励,阻尼器接合表面(210)和平台接合表面(110)在径向方向上相对于彼此移动。 这导致两个表面之间的摩擦,从而消耗能量并阻尼激励。 转子级(100)被布置成使得阻尼器接合表面(210)和平台接合表面(110)之间的接合负载是转子级(100)的旋转速度的函数。