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Fig. 4.
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Quadratic frequency transfer functions of wave forces at θ=45°
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Surge Force
Sway Fource
Yaw Moment
Fig. 5. ISSC spectrun(H1/3=0.05m, Tmean=3.14sec)
Figure 4 is the quadratic frequency transfer function of wave forces at the incident angle θ=45°. Next, the irregular waves for the calculation is produced from the equation (2), based on the ISSC spectrum of Figure 5.
Here, S(ωi) is the i th component of spectrum, Δω is the difference between the neighboring frequencies.
Fig. 6. Quadratic impulse response functions at θ=45°
Surge Force
Sway Force
Yaw Moment
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