机动飞行条件下带挤压油膜阻尼器的Jeffcott转子系统的振动特性
The Vibration Performance of the Jeffcott Rotor System with SFD in Maneuver Flight
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摘要: 建立了带挤压油膜阻尼器的Jeffcott转子系统的运动微分方程,研究了机动飞行条件下转子系统的振动特性。结果表明,机动飞行对转子系统振动的影响是明显的,机动飞行所产生的附加离心力和附加陀螺力矩将改变挤压油膜阻尼器的受力;SFD能够有效地抑制瞬态振动,起到快速稳定系统的作用。
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关键词:
- 航空、航天推进系统 /
- 挤压油膜阻尼器 /
- Jeffcott转子 /
- 机动飞行
Abstract: This paper sets up the differential equations of motion of a Jeffcott rotor system with squeeze film damper (SFD) and investigates its dynamic performance under maneuver flight. The result shows that the influence of maneuver flight on rotor vibration is evident, the additional centrifugal force and gyroscopic moment caused by maneuver flight will change the force acted on SFD. SFD can attenuate the transient vibration and stabilize the rotor system rapidly.-
Key words:
- aerospace propulsion system /
- squeeze film damper /
- Jef fcott rotor /
- maneuver flight
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