非均匀压电薄板面内自由振动的精确解
刘宗民,张健,宋海燕
Exact solution to in-plane free vibration of an inhomogeneous rectangular piezoelectric plate
LIU Zongmin, ZHANG Jian, SONG Haiyan
振动与冲击 . 2019, (7): 134 -138 .