多层复合壳体三维振动分析的谱--微分求积混合法

叶天贵, 靳国永, 刘志刚

A SPECTRAL-DIFFERENTIAL QUADRATURE METHOD FOR 3-D VIBRATION ANALYSIS OF MULTILAYERED SHELLS

Ye Tiangui, Jin Guoyong, Liu Zhigang

表 5 不同边界条件下软芯夹层圆柱壳第一阶频率

Table 5 The first frequencies of sandwich circular cylindrical shell for different boundary conditions

n F-F S-S C-C Pre. 3D[21] Pre. 3D[21] Pre. 3D[21] 296.1 295.9 445.2 444.8 455.5 455.0 16.87 16.89 251.7 251.5 293.4 292.6 35.90 35.88 152.6 152.5 204.8 203.8 57.57 57.54 112.3 112.2 157.9 156.9 82.88 82.85 108.7 108.6 140.2 139.3 112.4 112.3 126.5 126.4 145.2 144.6 146.3 146.3 156.0 155.9 166.6 166.2 184.8 184.8 192.7 192.7 199.0 198.7