中国机械工程Issue(17)：2344-2350,7.DOI:10.3969/j.issn.1004-132X.2014.17.014
基于动态轧制力的冷轧机两自由度垂直振动特性
Two Degree of Freedom Vertical Vibration Characteristics of Cold Rolling Mill Based on Dynamic Rolling Force
摘要
Abstract
The Establishment of dynamic force model was based on the consideration of the dy-namic changes of vibration displacement of cold rolling mill roller in vertical direction.The vibration influences of rolling mill's of the mechanical structure were considered,which formed the two-degree-of-freedom nonlinear vertical vibration equation.In addition,by using the multi-scale method, it was able to solve out the primary resonance and internal resonance amplitude-frequency characteris-tic equation of system.Lastly,parameters of the actual mill were used to conduct a simulation re-search and parameters such as equivalent nonlinear stiffness of a mill system,damping,and extrane-ous force were analyzed how to affect the primary and internal resonance.The study of the character-istics of work roll and back up roll was carried out and found that as the changes of the external dis-turbance force,the rolling mill will cause periodic,period-doubling,chaotic motion and a series of complex movements.The conditions where different kinds of motions occurred are also found.As a results it provides an effective theory reference for the research of inhibition of rolling mill vibration problems.关键词
冷轧机/两自由度/垂直振动/动态轧制力Key words
cold rolling mill/two-degree-of-freedom/vertical vibration/dynamic rolling force分类
机械制造引用本文复制引用
刘彬,赵红旭,朱月,刘浩然,侯东晓..基于动态轧制力的冷轧机两自由度垂直振动特性[J].中国机械工程,2014,(17):2344-2350,7.基金项目
国家自然科学基金资助项目(51405068,51105324) （51405068,51105324）
河北省自然科学基金资助项目(E2014501006,E2012203194) （E2014501006,E2012203194）
河北省高等学校科学技术研究项目(ZD2014202) （ZD2014202）
河北省科技支撑计划资助项目(13211907D) （13211907D）
