7ANSYS,InC,ANSYS Work Book [Z].Release 5.5,1997, 518-602.
8Bendsoe M P,Sigmund O. Topology Optimization: Theory, Methods and Applications [M]. Berlin: Springer, 2003.
9Hassani B, Hinton E. Homogenization and Structural Topology Optimization Theory, Practice and Software[M]. London : Springer, 1999.
10Rong J H,Xie Y M,Yang X Y. An Improved Method for Evolutionary Structural Optimization Against Buckling [J]. Computer & Structures, 2001,79 : 253-263.
