RT Journal Article T1 Semiphysical modelling of the nonlinear dynamics of a surface craft with LS-SVM A1 Moreno Salinas, David A1 Chaos, Dictino A1 Besada Portas, Eva A1 López Orozco, José Antonio A1 Cruz García, Jesús Manuel de la A1 Aranda, Joaquín AB One of the most important problems in many research fields is the development of reliable mathematical models with good predictive ability to simulate experimental systems accurately. Moreover, in some of these fields, as marine systems, these models play a key role due to the changing environmental conditions and the complexity and high cost of the infrastructure needed to carry out experimental tests. In this paper, a semiphysical modelling technique based on least-squares support vector machines (LS-SVM) is proposed to determine a nonlinear mathematical model of a surface craft. The speed and steering equations of the nonlinear model of Blanke are determined analysing the rudder angle, surge and sway speeds, and yaw rate from real experimental data measured from a zig-zag manoeuvre made by a scale ship. The predictive ability of the model is tested with different manoeuvring experimental tests to show the good performance and prediction ability of the model computed. PB Hindawi Publishing Corporation SN 1024-123X YR 2013 FD 2013 LK https://hdl.handle.net/20.500.14352/44391 UL https://hdl.handle.net/20.500.14352/44391 LA eng NO © 2013 David Moreno-Salinas et al.The authors wish to thank the Spanish Ministry of Science and Innovation (MICINN) for support under Projects DPI2009-14552-C02-01 and DPI2009-14552-C02-02. The authors wish to thank also the National University Distance Education (UNED) for support under Project 2012V/PUNED/0003. NO Spanish Ministry of Science and Innovation (MICINN) NO National University Distance Education (UNED) DS Docta Complutense RD 12 abr 2025