摘要
分析研究了带材横向振动导致轧机振动失稳的条件和机理。建立了轧制过程中带材横向振动动力学方程 ,分析带材横向参数振动稳定性、稳定区域和非稳定区域 ,得出开卷和卷取张力波动频率为带材横向振动固有频率二倍或一倍时 ,带材失稳 ,导致轧机振动加剧或失稳。对某平整机驱动电机主回路电流特性进行了分析和现场测试 ,证实了驱动电机主回路电流存在谐波分量 。
The unsteady condition of rolling mill vibration that it was caused by flexural vibration of strip was investigated. The parametric flexural vibration equation of rolled strip was established. The parametric flexural vibration stability of rolled strip was studied and region of stability and instability was determined based on Floquet theory. The flexural vibration of strip was unstable if the frequency of variable tension was two times the natural frequency of flexural vibration strip.
出处
《机械科学与技术》
CSCD
北大核心
2002年第5期802-804,共3页
Mechanical Science and Technology for Aerospace Engineering
