轴对称薄壁结构自由振动的边界元分析1)
周琪, 陈永强

FREE VIBRATION ANALYSIS OF THIN-WALLED AXISYMMETRIC STRUCTURES WITH BOUNDARY ELEMENT METHOD1)
Zhou Qi,Chen Yongqiang
表5 环向波数n=2常规圆筒前五阶对称和反对称频率
Table 5 The first 5 symmetrical and anti-symmetrical frequency ofthe general hollow cylinder with n = 2