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 4 四边简支[0°/90 °/core/0°/90 °]软芯夹层板无量纲频率参数

Table 4 Frequency parameters Ω of [0°/90°/core/0°/90 °] sandwich plates of S-S-S-S restraint

$\begin{array}{l} M odes \\ (m_{λ}, n_{λ}) \end{array}$	$J_{f ace} - J_{c ore} - J_{f ace}$		Ref.[20]
	4-7-4	5-9-5	LW	ESL
, 1	1.849	1.849	1.848	4.962
, 2	3.222	3.222	3.220	8.193
, 2	4.292	4.292	4.289	10.30
, 3	5.228	5.227	5.223	11.99
, 3	6.099	6.099	6.094	13.75
, 3	7.683	7.683	7.676	16.45