8L.Mcirovitch.Elements of vibration Analysis[J].McGcw-Hill.1985.43
9Jullien J F,Limam A.Effects of openings of the buckling of cylindrical shells subjected to axial compression[J].Thin-Walled Structures,1998,31:187-202.
10Cho-Chung Liang,Ching-Yu Hsu,Wei Chen.Curvature effect on stress concentrations around circular hole in opened shallow cylindrical shell under external pressure[J].Pressure Vessels and Piping,1998,75:749-763.