【作者】 刘琳琳； 成刚虎； 黄颖为；

【Author】 Liu Linlin;Cheng Ganghu;Huang Yingwei;

【机构】 西安理工大学印刷包装工程学院；

【摘要】 基于有限元动力学分析,本文首先对印刷机压印滚筒进行模态分析,获得滚筒固有频率及振型,在分析滚筒工作状态基础上提出利用机械波传递理论仿真滚筒滚压过程,对滚筒进行瞬态响应分析得到滚筒工作状态下的动态挠曲。结果表明,在动态压印下滚筒挠曲变形时间历程呈简谐振动形态,不同印刷速度下的仿真分析说明印刷速度越高,印刷压力变化越大,从而获得滚筒动态特性。更多还原

【Abstract】 Based on dynamics analysis with finite element method,modal analysis for printing press cylinder is firstly given in this paper.Corresponding natural frequency and vibration form are got.Based on analyzing work state of printing press cylinder,the rolling process is simulated by dint of machine wave theory.Dynamic deflection in working is achieved by transient response analysis.The results indicate that the deflection is simple harmonic vibration form in dynamic pressure,the higher of the printing speed is,and the larger of the pressure-changes is.Hence,the dynamic character of cylinder is acquired.更多还原