A Prediction Method for Steady Wave Forces and Moment Acting on Ship Maneuvering in Short Waves

Abstract

This paper presents a prediction method for the steady wave longitudinal and lateral forces and yaw moment acting on ship maneuvering with a forward speed, lateral drift, and yaw rate in short waves. Specifically, the existing formula that focuses on wave diffraction is modified in terms of the wave amplitude near ships and the finite draught of ships. The effects of each modification are discussed based on predictions for a very large crude carrier and container ship. Moreover, the prediction method with and without each modification is validated by comparing the prediction results with published experimental data.