Hydrodynamic Performance and Stability Optimization of High-Speed Monohull Vessels with Chine Hulls: A Computational and Experimental Approach

High-speed monohull vessels with chine hulls are widely used due to their simple design, but maintaining optimal performance at high speeds requires precise hull force analysis.This study utilizes 3D scanning to capture hull geometry, refining it in AutoCAD for efficiency.Hydrostatic and hydrodynamic assessments are conducted using Maxsurf, applying the Switkowski method.The study examines vessel motion, crew comfort, and water ingress under different sea conditions.Results indicate that at a 5.4-degree trim, pitch motion intensifies in harmonic waves, yaw motion increases in beam waves, and pitch and heave motions are more pronounced in head waves.Water ingress becomes a concern at this trim in Beaufort 2 and 3, with MSI peaking at 12.5% in Beaufort 3. The lowest resistance occurs at 5.22 knots, but higher trims raise power demands.Manual trim adjustments using outboard engines and jacks effectively mitigate these effects.