Analysis of the Spatial Vibration of Nonprismatic Arches by Means of Recurrence Relations for the Coefficients of the Chebyshev Series Expansion of the Solution

Table 2

Comparison of nondimensional natural frequencies for H-H arch.

	T cross section		L cross section
	this paper	FEM	this paper	FEM
	10.4339	10.4356	10.7314	10.7423
	16.1250	15.3052	15.3797	14.4755
	31.4425	31.4089	32.3181	32.3079
	41.4795	41.6023	38.7676	38.8465
	67.2877	67.1519	69.6218	69.5147
	77.8042	77.6857	73.0771	72.9532
	116.683	116.216	117.562	116.972
	122.193	121.738	118.982	118.508
	176.450	176.338	172.057	171.707
	177.627	177.575	176.415	175.082