卷到卷制造中基板横向振动研究进展

运动基板的横向振动问题已经成为严重限制卷到卷制造效率和质量的关键。详细介绍了卷到卷制造中运动基板横向振动问题的研究概况。讨论了运动基板横向振动的建模方法,以Hamilton原则为例,推导了基板横向振动的控制方程,结合解析求解和数值求解方法,计算横向振动的频率和模态。分析了基板张力、速度、材料特性、中间支撑和外界环境等因素对基板自由振动特性及动态稳定性的影响。研究了基板参数振动特性,考虑基板张力和速度两个主要参数的波动,阐述了基板横向振动被动控制和主动控制方法。联合基板纵向张力控制和侧向纠偏控制,讨论了横向振动控制在卷到卷制造中的工程应用。最后,展望卷到卷制造工程应用中基板横向振动研究的关键问题。

Advance in Transverse Vibration of Axially Travelling Web in Roll-to-Roll Manufacturing

The transverse vibration of the axially travelling web has been the main quality and productivity limiting factor in the roll-to-roll manufacturing. The recent advances of the transverse vibration of travelling web are detailedly introduced in this paper. Firstly, the modeling methods of transverse vibration are discussed. Taking the Hamilton principle as example, the governing equations of motion are derived. The analytical method and numerical method are used to solve the governing equations and compute the natural frequencies and mode shapes. The effects of the tension, speed, material parameter, intermediate support and surrounding on the characteristics of free vibration and stability of the travelling web are investigated.The fluctuations of tension and travelling speed are considered to study the parametric vibration. The passive control method and active control method are introduced.Combining the longitudinal tension control and lateral position control,the engineering applications of transverse vibration control in the roll to roll manufacturing are discussed. Finally, the key problems need to be further studied for the transverse vibration of the travelling web are forecasted in this paper.