No abstract

This paper deals with virtual prototyping and optimization of heavy machine tools. Main focus is on static and dynamic stiffness of heavy lathe. Analysis of virtual models of heavy lathes is very specific because the great influence on machine stiffness has workpiece and machine base. In most cases the weight of workpiece is greater than the weight of machine tool. The influence of workpiece and machine base on static and dynamic stiffness of heavy lathe is analysed in this work. CAx software Siemens NX 10.0 is used for numerical analysis and optimization of heavy lathe.