摘要
分析了弹支笼条局部断裂后对转子的影响;实验研究了弹支笼条没有裂纹、有裂纹时,升、降速等情况下转子的振动特性,包括有、无主动弹支干摩擦阻尼器控制等.实验发现,主动弹支干摩擦阻尼器能减小由于弹支发生局部断裂而增加的振动;选择P控制方案,主动式弹支干摩擦阻尼器能够在转子弹支局部断裂后,实现应急停机,起到保护转子系统的作用.
The dynamic behavior of rotor systems with a cracked elastic support was an alyzed. Experimental investigations of rotor vibration characteristics, in particular, caused by a crack in elastic supports by using the control of an active elastic support/dry friction damper, was carried out, It is proven that the damper is effective to reduce rotor vibration caused by cracked elastic supports. Experimental results show that the damper with the P control method, can be achieved with the emergency shutdown, and plays a key role of pro teeting rotor systems.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2008年第11期2026-2030,共5页
Journal of Aerospace Power
关键词
主动弹支干摩擦阻尼器
弹支局部断裂
应急停机
active elastic support,＇ dry friction damper
cracked elastic supports
emergency shutdown
