Structural Parameter Optimal Design of a 3-TPS Parallel Grinding Machine Tool Based on Stiffness

Abstract:

On the basis of static analysis, the stiffness model of the parallel grinding machine tool is established from the 3-TPS parallel grinding machine tool newly designed by Northeastern University. By analyzing its stiffness matrix, the optimal objective is given which is the average of the twenty condition numbers of stiffness matrix corresponding to the twenty positions in the margin areas of the workspace. With MATLAB software, the effects are simulated which the structural parameters of the parallel grinding machine tool have on their stiffness, their change laws are gained, and then the stiffness design of the parallel grinding machine tool are conducted based on these laws.

• Periodical: Key Engineering Materials (Volumes 359-360)
• Pages: 538-542
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.359-360.538
• Online since: November 2007
• Authors: Liang Zhao, Ya Dong Gong, Guang Qi Cai
• Keywords: Optimization Design, Parallel Grinding Machine Tool, Stiffness, Structural Parameter

References

[1] C.M. Gosselin: IEEE Transactions on Robotics and Automation, Vol. 6 (1990) No. 3, pp.377-382.

[2] B.S. EI-Khasawneh and P.M. Ferreira: International Journal of Machine Tools &Manufacture, Vol. 39 (1999), pp.321-342.

[3] T. Huang, X.Y. Zhao and D.J. Whitehouse: IEEE Transactions on Robotics and Automation, Vol. 18 (2002) No. 1, pp.50-58.

[4] X.Z. Meng, C.S. Liu, X.Y. Guan and G.Q. Cai: Key Engineering Materials, Vols. 304-305 (2006), pp.445-449.

[5] X. Chen: Study on Dynamic Performance of 3-UPS Hybrid Machine Tool (Ph.D. Dissertation, Northeastern University, China 2006), pp.47-48.

[6] H.S. Ding, D.W. Fu and T. Fu: Transactions of Beijing Institute of Technology, Vol. 24 (2004) No. 4, pp.300-303. (In Chinese).