摘要
针对一类具有代表性的双质体—传输带干摩擦系统,首先对系统平衡点进行稳定性分析,然后利用数值方法揭示系统在非内共振、1∶2和1∶3内共振三种情况下的非线性动力学现象。通过分析可知,在传输带速度减小的过程中,系统的静平衡状态失稳,出现纯滑动和粘滞—滑动形式的干摩擦自激振动。另外,系统的内共振状态对干摩擦自激振动有重要影响。
Serf-excited vibration induced by dry-friction of a typical 2-DOF （degree of freedom）block-on-beh model was studied. The stability of the system equilibrium point was analyzed. The nonlinear dynamical behaviors of the system with non-internal resonance, 1 ： 2 and 1 ： 3 internal resonance conditions were numerically investigated respectively. The results show that with the decrease of belt velocity the system loses its equilibrium stability and the self-excited vibrations, containing pure-slip and stick-slip types, are induced. The internal resonance condition plays an important role in the dry-friction induced self-excited vibration.
出处
《机械强度》
EI
CAS
CSCD
北大核心
2008年第4期539-543,共5页
Journal of Mechanical Strength
基金
国家863计划(2007AA042005)
高等学校博士点专项科研基金(20060056016)资助项目~~
关键词
干摩擦
稳定性
自激振动
粘-滑振动
内共振
Dry-friction
Stability
Serf-excited vibration
Stick-slip
Internal resonance
