NONLINEAR VIBRATION CHARACTERISTICS ANALYSIS OF THE AXIALLY MOVING PRINTING MEMBRANE

摘要

The transverse vibration of high-speed membrane in the printing process and the "fold" phenomenon caused by vibration will seriously affect the printing overprint precision and printing quality. The nonlinear vibration characteristics of the axially moving membrane are studied. The model of the moving membrane was established. Then, the Von Karman equations expressed by the deflection function and the internal force function of axially moving membrane are derived based on the theory of elasticity. The time and spatial variables are separated by Galerkin method. Then the ordinary differential equations were analyzed by the method of multiple scales. The dynamic behaviors were identified based on the time history, phase chart and amplitude frequency curves. Periodic, quasi-periodic and multi-periodic were occurred under different speed and length-width ratio for the transverse vibration of the axially moving membrane.