Research Article

Free Vibrations of a Trapezoidal Plate with an Internal Line Hinge

Table 1

The first five values of the frequency parameter for anisotropic trapezoidal plates with an internal line hinge located at different positions and subject to different boundary conditions.


SCSS
0,500,54,04449,813311,936816,109316,8048
0,40,20,63,00377,48049,814213,106113,9349
0,30,40,72,39475,69398,416510,733411,8879

SCCS
0,500,55,775611,636612,859018,020319,1298
0,40,20,64,03239,126410,630714,016715,1435
0,30,40,72,92236,89778,674211,916312,9837

SSCF
0,500,54,80139,388010,045315,436017,0102
0,40,20,63,39047,75808,443612,078112,7893
0,30,40,72,34674,85666,19358,333010,2203

SCFF
0,500,51,91463,76345,17019,327012,2469
0,40,20,61,21562,32634,05407,11278,3748
0,30,40,70,75251,99753,15314,50586,6353