Validation of 4DOF maneuvering coefficients optimization using hydrodynamic force and moment estimated from free-running model test results

Kiwon Kim, Sungeun Choi, Jeonghwa Seo, Ki In Na, Shin Hyung Rhee, Dong Hwan Kim

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The present study concerns validation of data-driven modeling for ship dynamics from free-running model test results, in terms of estimation of hydrodynamic force and moment, maneuvering coefficients, and maneuver simulation results. An estimation method for the hydrodynamic force and moment from the acceleration of a surface combatant model ship is suggested and compared with the conventional ship dynamics modeling. The hull dynamics modeling relates the motion and hydrodynamic force and moment is developed by optimizing maneuvering coefficients which leads to minimum loss function of hydrodynamic force and moment and maneuvering criteria. The maneuvering coefficients of the dynamics model is compared with a conventional system-based dynamics model. Lastly, the maneuvering simulation results are compared to the free-running model test results. The suggested model adequately predicts hydrodynamic force and moment in highly coupled sway and yaw motion.

Original languageEnglish
Article number100599
JournalInternational Journal of Naval Architecture and Ocean Engineering
Volume16
DOIs
StatePublished - Jan 2024

Keywords

  • Free-running model test
  • Mathematical maneuvering model
  • Ship maneuverability

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