航空发动机碰摩故障的非线性动力学分析  

Nonlinear Dynamic Analysis of Rubbing Faults for Aero-engine

作　　者：邵秋波[1] 方勃[1,2] 武文斌[1] 

机构地区：[1]沈阳建筑大学交通与机械工程学院,辽宁沈阳110168 [2]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《机电产品开发与创新》2011年第1期24-26,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：考虑系统的陀螺效应,建立含碰摩故障的滚动轴承支撑的系统动力学模型。利用打靶法分析系统在不同碰摩间隙下的分叉和混沌行为。分析表明系统随着碰摩间隙的增大,经历了混沌运动、周期运动、拟周期运动、再到混沌运动、最后进入正常周期运动的过程,且碰摩间隙对系统的动力学行为有较大的影响。Considering the gyroscopic effect of system,a dynamic model of ball bearing supporting system including rubbing fault was established.Behaviors of bifurcation and chaos are analyzed by shooting for the systems excited different rubbing clearances.It is shown that the system experienced the process of movement which involved chaotic motions,periodic motion,quasi-periodic motion,chaotic motions,and periodic motion,with the increase of rubbing clearance.And the influence of system dynamics behavior are remarkable with rubbing clearances.

关 键 词：陀螺效应 碰摩 打靶法 分叉与混沌 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]