Parameter optimization of ship anti-roll gyro control system based on genetic algorithm

Table 1. Ship parameters
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Table 1. Ship parameters
参数数值
船长L/m 7.5
型宽B/m 3.12
型深H/m 1
排水量D/t 3.7
初稳性高h/m 0.5
重心高Z_g/m 0.7
固有横摇周期T_ϕ/s 2.8
吃水深度d/m 0.45

Table 2. Hydrodynamic coefficients for the USV
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Table 2. Hydrodynamic coefficients for the USV
参数数值
$ ({I}_{xx}+{J}_{xx})/( $kg·m2) 1 655.11
c1/(kg·m2·s−1) 405.23
c3/(kg·m2·s−1) 218.35
k1/(kg·m2·s−2) 2 957.81
k3/(kg·m2·s−2) −1 081.15
k5/(kg·m2·s−2) 93.32

Table 3. Anti-roll gyro system parameters
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Table 3. Anti-roll gyro system parameters
参数数值
$ {h}_{0} $/(N·m·s) 1 000
J/(kg·m2) 1.57
$ {C}_{\mathrm{m}} $/(N·m·A−1) 2.62
L/H 0.12
R/Ω 0.35
μ 0.05

Table 4. Ship rolling motion response
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Table 4. Ship rolling motion response
海况 $ \bar {{\phi }_{N}} $/(°) $ \bar {{\phi }_{P}} $/(°) 减摇效率$ {\eta }_{\phi } $/%
海况① 17.1 1.7 90.00
海况② 9.2 1.1 88.31

Table 5. Optimization results

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Table 5. Optimization results

参数分类	参数名称	优化结果
参数分类	参数名称	海况①	海况②
初始参数	适应度	0.888 6	1.011 0
	减摇效率$ {\eta }_{\phi } $/%	90.00	88.31
	包络面积$ {A}_{\mathrm{f}\mathrm{H}} $/dB	3 644.12	178.83
优化参数	适应度	4.839	4.922
	减摇效率$ {\eta }_{\phi } $/%	96.68	97.44
	包络面积$ {A}_{\mathrm{f}\mathrm{H}} $/dB	3 738.96	398.26

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Tongtong QIE, Jianyong ZHENG, Lei ZHANG, Zhichu LEI, Xutao HE. Parameter optimization of ship anti-roll gyro control system based on genetic algorithm[J]. Chinese Journal of Ship Research, 2025, 20(3): 223

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