Investigating the Response Amplitude Operator of a Heaving Pontoon under the Influence of a Submerged Trapezoidal Breakwater

Table 12

Amplitude and frequency of the heaving pontoon for breakwater number 4.

Wave specifications
	Exciting waves		Response of pontoon (from FFT)		Frequency error (%)	RAO
	0.3	1.33E − 02	0.918	1.36E − 02		0.924	0.599	1.016
0.4	1.00E − 02	1.094	1.12E − 02	1.086	0.769	1.118
0.5	8.00E − 03	1.238	1.05E − 02	1.251	1.062	1.310
0.6	6.67E − 03	1.362	5.66E − 03	1.319	3.142	0.849
0.7	5.71E − 03	1.473	3.20E − 03	1.493	1.344	0.561
0.8	5.00E − 03	1.576	8.01E − 04	1.591	0.963	0.160
0.9	4.44E − 03	1.672	3.85E − 04	1.673	0.073	0.087
1.0	4.00E − 03	1.762	1.92E − 04	1.764	0.094	0.048