1Smith M J, Grigoriadis K M, Skelton R E. Optimal mix of passive and active control in structures. Journal of Guidance, Control and Dynamics, 1992, 15 (4): 912919.
2Liu X J, Begg D W. On simultaneous optimization of smart structures-part 1: theory. Computer Methods in Applied Mechanics and Engineering, 2000, (184) : 15-24.
3Liu X J, Begg D W. Sensitivity analysis of structures.Computer Methods in Applied Mechanics and Engineering, 1998, (163) :311-322.
4Nelson R B. Simplified calculation of eigenvector derivatives. AIAA Journal, 1976,14 (9) : 1201 - 1205.
