Chinese Journal of Ship Research, Volume. 16, Issue 3, 44(2021)
A SR-UKF-based method to identify submarine hydrodynamic coefficients
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Table 1. Dimensionless hydrodynamic coefficients measured values
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垂向方程 纵倾方程 无因次系数 测定值 无因次系数 测定值 $Z_{\dot w}^{'}$ −0.014 40 $M_{\dot q}^{'}$ −0.000 98 $Z_{\dot q}^{'}$ −0.000 07 $ M_{\dot w}^{'} $ −0.001 39 $ Z_q^{'}$ −0.006 99 $ M_q^{'}$ −0.003 89 $Z_0^{'}$ −0.000 30 $M_0^{'}$ 0.000 02 $Z_w^{'}$ −0.020 28 $M_w^{'}$ 0.004 78 $Z_{ {\delta _ {\rm{b}}} }^{'}$ −0.005 12 $M_{ {\delta _ {\rm{b}}} }^{'}$ 0.000 94 $Z_{ {\delta _ {\rm{s}}} }^{'}$ −0.005 12 $M_{ {\delta _ {\rm{s}}} }^{'}$ −0.002 31
Table 2. Dimensionless hydrodynamic coefficients identification errors
View tableView in ArticleTable 2. Dimensionless hydrodynamic coefficients identification errors
无因次系数 误差/% SR-UKF RLS 初值为0 初值随机 初值为0 初值随机 $Z_q^{'}$ 0.00 0.19 0.06 0.19 $Z_0^{'}$ 0.07 2.89 1.95 1.89 $Z_w^{'}$ 0.00 0.09 0.03 0.10 $M_q^{'}$ 0.61 0.93 1.86 630 $M_0^{'}$ 1.50 36.95 142.5 4 524 $M_w^{'}$ 0.01 0.28 3.73 1 250
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Bangjun LYU, Bin HUANG, Likun PENG. A SR-UKF-based method to identify submarine hydrodynamic coefficients[J]. Chinese Journal of Ship Research, 2021, 16(3): 44
Paper Information
Category: Ship Design and Performance
Received: Mar. 5, 2020
Accepted: --
Published Online: Mar. 27, 2025
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