Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines

Table 2

Nondimensional fundamental frequencies (𝜔) for laminated composite conoidal shell with cutout.

𝑎^′/𝑎	Corner point supported		Simply supported		Clamped
	Chakravorty et al. [11]	Present model	Chakravorty et al. [11]	Present model	Chakravorty et al. [11]	Present model
0.0	23.863	23.494	75.450	74.892	124.736	123.306
0.1	23.554	23.872	75.098	75.278	123.811	123.987
0.2	23.746	23.485	73.668	73.324	122.074	120.588
0.3	23.510	23.768	69.979	69.763	120.515	119.101
0.4	23.205	23.101	61.824	61.524	116.924	115.924

𝑎/𝑏=1, 𝑎/ℎ=100, 𝑎^′/𝑏^′=1, 𝑎/ℎ_ℎ=2.5, and ℎ_𝑙/ℎ_ℎ=0.25.