Dynamic characteristic prediction of multistage gear-cylinder transmission system

摘要

Dynamic behavior of gear-cylinder directly affecting the printing quality and efficiency is one of the key elements in offset printing. In order to study the problem of ink bar and ghosting caused by excessive vibration, a new model taking into account a variety of key physical factors is developed to predict the dynamic characteristics of a gear-cylinder system using the lumped parameter method. An appropriate mathematical tool is utilized to describe the meshing stiffness and transmission error function, thereby deducing the equations of motion with 16 degrees of freedom. In addition, the partial differential equation of sensitivity analysis in matrix form is obtained after the completion of formula transformation. The simulation results obtained from dynamic response and sensitivity analysis show that the proposed model is reliable enough to be used for dynamic characteristic prediction of a gear-cylinder system.