Shock and Vibration

Research Article

Wind Load and Structural Parameters Estimation from Incomplete Measurements

Table 8

Estimation of structural parameters under different numbers of measurements.


Structural parameter	Nine measurements		Eight measurements		Seven measurements		Six measurements		Five measurements		Four measurements
Structural parameter	Value (×10⁸)	Error (%)	Value (×10⁸)	Error (%)	Value (×10⁸)	Error (%)	Value (×10⁸)	Error (%)	Value (×10⁸)	Error (%)	Value (×10⁸)	Error (%)

k₁	2.52	2.81	2.37	3.38	2.55	3.97	2.35	4.12	2.61	6.52	2.68	9.51
k₂	2.39	2.56	2.52	2.88	2.37	3.44	2.55	4.02	2.60	6.28	2.68	9.48
k₃	2.40	2.03	2.37	3.12	2.35	4.15	2.34	4.31	2.58	5.45	2.21	9.62
k₄	2.40	1.97	2.53	3.24	2.54	3.84	2.30	5.98	2.61	6.44	2.22	9.26
k₅	2.51	2.35	2.53	3.44	2.35	3.96	2.59	5.65	2.28	6.74	2.69	9.64
k₆	2.51	2.26	2.38	2.76	2.35	3.99	2.57	5.07	2.29	6.39	2.70	10.08
k₇	2.38	2.86	2.37	3.42	2.55	4.08	2.57	4.94	2.30	6.27	2.68	9.25
k₈	2.39	2.28	2.52	2.98	2.55	4.19	2.32	5.43	2.62	6.74	2.71	10.46
k₉	2.49	1.50	2.51	2.49	2.53	3.37	2.55	4.25	2.29	6.73	2.67	9.18
k₁₀	2.50	2.12	2.53	3.40	2.34	4.30	2.58	5.43	2.29	6.62	2.69	9.61
Α × 10⁸	0.577	3.63	0.581	3.71	0.581	4.25	0.612	9.83	0.592	6.27	0.606	8.71
β × 10⁸	0.00342	0.76	0.0035	2.8	0.00348	2.24	0.00358	5.33	0.0038	11.76	0.00384	13.01