대형 LCD 패널 제조용 복합재 롤러의 회전체 동역학 해석

In this study, three-dimensional rotordynamicanalyses have been conducted using equivalent beam, hybrid and full three-dimensional models. The present computational method is based on the general finite element method with rotating gyroscopic effects of rotor systems. General purpose commercial finite element code, SAMCEF (Ver.5.1) which includes practical rotordynamics module with various types of rotor analysis methods and bearing elements is applied. For the purpose of numerical verification, comparison study for a benchmark rotor model with support bearings is performed first. Detailed finite element models for composite roller are constructed and then computational analyses have beenconducted for the realistic three-dimensional rotor system. The results for rotor stability and mass unbalance responses are presented for different rotating speeds.