Frequency-Based Cable Tension Identification Using a Nonlinear Model with Complex Boundary Constraints

Table 1

Physical parameters of four numerical cables.

No	Hm (10^6N)	E (Pa)	A (m^2)	I (m^4)	λ^2	ξ
Cable 1	2.9036	1.5988E + 10	7.8507E − 03	4.9535E − 06	0.79	605.5
Cable 2	0.7259	1.7186E + 10	7.611E − 03	4.6097E − 06	50.70	302.7
Cable 3	26.13254	2.0826E + 13	7.8633E − 03	4.9204E − 06	1.41	50.5
Cable 4	0.7259	4.7834E + 8	0.7345E − 01	5.9506E − 03	50.70	50.5

Note. The nondimensional parameters λ² [3] and ξ [1] characterize the flexural stiffness and sag-extensibility of the cable, respectively. The cable sag-extensibility increases with λ², and the flexural stiffness decreases with ξ.