JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (1): 78-83.

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Finite element analysis and optimization design for the vertical slide board of the ‘boxinbox’ structure

  

  1.  XIAO Li-Li, CHEN Wei-Fang, YE Wen-Hua,  LIU Shi-Hao：College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; YANG Qi：Nantong Science ＆ Technology Investment Group Co, ltd,  Nantong 226006, China
  • Received:2009-10-09 Online:2010-02-16 Published:2009-10-09

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Abstract:

In order to improve dynamic and static performance of the ‘boxinbox’ structures vertical slide board and rigidity of machine tool, statics and a modal finite element analysis for the  vertical slide board were carried out in theCAD／CAE simulation design platform. The result indicated that the stiffness in Y, X directions should be improved, and the convex vibration and swing of the vertical slide board were obvious. In this regard, four improved plans of the vertical slide board were designed, and the best improvement plan was selected by using dynamic and static performance evaluation based on fuzzy transformation. The optimized vertical slide board structure was obtained by conducting the dynamic optimal design for the improved vertical slide board. The results showed that modification and size optimization design for the vertical slide board could effectively improve  static and dynamic performance.

Key words: machine tools vertical slide board; finite element analysis;structural improvement; optimization design

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