State Key Laboratory for Turbulence and Complex System/Department of Mechanics and Engineering Science Peking University Beijing 100871 P. R. China;
Division of Engineering Sciences Institute of Mechanics Chinese Academy of Sciences Beijing 100080 P.R.China;
School of Aerospace Mechanical and Mechatronic Engineering University of Sydney Sydney NSW2006 Australia;
Mechanical Materials and Aerospace Engineering Department University of Central Florida Orlando FL 32816 USA;
vibration control of structures; repetitive structure; symmetric structure; cyclic periodic structure; linking structure;