摘要
尾舱扰流板自由状态下不归零故障原因为活塞腔内密封圈老化、弹性变差,密封圈的老化将导致活塞处密封圈的挤压产生的摩擦力不足以平衡扰流板在自由状态重力影响,不能较好回至零位。另一方面,密封圈的老化将使得阻尼比减小,导致整个燃气系统或子系统在零位时的不稳定性增大,出现尾舱扰流板抖动现象。
The causes of non-return-to-zero failure in the free state of the spoiler in the aft compartment are aging and poor elasticity of the sealing ring in the piston chamber,the aging of the sealing ring will cause the friction force produced by the extrusion of the sealing ring at the piston is not enough to balance the gravity influence of the spoiler in the free state and return to zero position.On the other hand,the aging of the seal ring will reduce the damping ratio,which will lead to the instability of the whole gas system or sub-system at zero position,and the wobble of the spoiler in the tail compartment.
作者
范东林
赵文瑞
郭来军
杨子涛
FAN Dong-lin;ZHAO Wen-rui;GUO Lai-jun;YANG Zi-tao(State-run Luoyang Dancheng Wireless Power Plant,Luoyang 471000,China)
出处
《液压气动与密封》
2021年第8期61-63,68,共4页
Hydraulics Pneumatics & Seals
关键词
扰流板
不归零
抖动
密封圈
老化
spoiler
non-return to zero
dithering
seal ring
aging
