Modal Analysis of Miller Body Based on ANSYS

Vibration is one of the most important problems in machine design,which causes the manufacturing errors,and influences the machining accuracy of the part,and model analysis can calculate vibration type of a part.The paper establishes the 3D finite element model of a lathe-bed and calculates the result of vibration model analysis of it in ANSYS.The first ten natural frequency and vibration models of the lathe-bed are obtained and we analyze the result.It is very essential to us to research into dynamic character.