Experimental and theoretical study of web traction over a nonvented roller
Abstract
The traction developed between a thin flexible web, wrapped around a nonvented, rotating cylindrical roller is studied experimentally and theoretically. A series of eight webs representing a wide range of surface roughness characteristics are traction tested against the same roller over a wide speed range. A one-dimensional finite difference model that couples air film pressure (Reynold's equation), web bending and solid-body contact using an asperity compliance function is used to model the experimental traction data. An optimization technique is used to estimate the asperity compliance function parameters. A new model for computing the asperity engagement height for non-Gaussian surfaces is presented when the roughness of both surfaces is taken into account. Results are presented which indicate the viability and utility of the new methods.
Citation
Rice, B. S., Cole, K. A., & Muftu, S. (1999, June). An experimental and theoretical study of web traction over a nonvented roller. Paper presented at the Fifth International Conference on Web Handling (IWEB), Stillwater, OK.