Improving Web Transport Dynamics in Application and Manufacturing Environments

威克特网是由纸、布、塑料、金属板或磁带等薄材料制成的扁平连续条，在制造或使用过程中以高速和张力运输。虽然组成网的材料可能不同，但高速和精确控制是网处理系统的共同目标。本项目将研究限制web传输系统性能的两个技术问题。首先是在将网绕到线轴上时发生的空气夹持。第二个性能限制问题是在卷筒纸输送系统中由于导轨不对准引起的机械起皱。实验部分使用非接触式激光干涉仪系统来测量高速下卷筒纸的振动、卷线过程中的瞬态振动以及卷筒纸起皱时的不稳定响应。为补充这一实验工作，将开发一个腹板的动态模型，该模型将包括由夹闭空气引起的弹性变形和压力之间的耦合，以及由导轨错位引起的平面应力不均匀。增加对网络传输动态的基本理解是本研究的贡献之一。此外，这些结果将导致解决空气夹持和起皱问题，提高卷筒纸处理系统的稳定性和性能。

9622258 Wickert Webs are flat continuous strips of thin materials like paper, cloth, plastic, sheet metal, or magnetic tape, that are transported during manufacture or use at high speed and under tension. While the material that comprises the web may vary, high speeds and precise control are common goals for web handling systems. This project will investigate two technical problems that limit the performance of web transport systems. First is air entrapment that occurs when winding a web onto a spool. The second performance limiting problem is mechanical wrinkling caused by misalignment of the guides in a web transport system. The experimental part of the research uses a non-contact laser interferometer system to measure web vibration at high speeds, transient vibrations during spooling, and the unstable response of the web at the onset of wrinkling. Complementing this experimental work will be development of a dynamic model of the web that will include coupling between the elastic deformation and pressure cause by entrapped air, and the non-uniform in plane stresses caused by guide misalignment. Increased fundamental understanding of web transport dynamics is one of the contributions of this research. In addition, these results will lead to solutions to the air entrapment and wrinkling problem, increasing the stability and performance of web handling systems.