실험계획법을 이용한 후판 압연기의 채터 진동 분석

Abstract

Chatter vibrations have degraded rolling performances, influencing slab quality, rolling mill performance, and service life. However, chatter vibrations occur under various specific rolling conditions, so its analysis through experimentation is limited. In this study, while chattering occurs vibration data and multibody dynamics are employed to investigate the cause of chatter vibration of a thick plate rolling mill. As a result, it was confirmed that low-frequency chatter vibration is generated during the slab insertion process. The chatter vibration analysis was performed under various rolling conditions to reduce chatter vibration. According to the analysis results, the main design, interaction effect, and optimized rolling conditions were presented using an experimental design.