Application of the boundary element method on SimSolid software to analyze the vibrations of the CNC milling machine spindle

Abstract

The vibrations of the spindle assembly significantly impact the machining accuracy and quality of the Xmill – M900 CNC milling machine. Therefore, this paper presents the theoretical basis of the Boundary Element Method (BEM) and its application in SimSolid software to determine natural vibration frequencies and predict vibration amplitude under resonance conditions. Additionally, the paper analyzes the frequency and amplitude of forced vibrations of the Xmill – M900 CNC milling machine under maximum power working conditions, to assess and avoid resonance during the machine's operation.