The experimental model analysis on the colum of the vertical milling machine was practised with the software SMS 3.0, the weak link of the column was found out and a modification scheme was put forward for the design of the column structure.

• 应用SMS 3.；0软件对立铣立柱进行了全面的实验模态分析研究；找出了立柱结构的薄弱环节；为立柱的结构设计提出了改进方案。