ON THE PRACTICAL METHOD FOR PREDICTION OF SHIP MANOEUVRING CHARACTERISTICS

摘要

Approximate formulae for estimating the coefficient of hydrodynamic forces acting on a ship are proposed. The formulae were obtained by analyzing model test data, which consist of 15 kinds of ships and their 48 loading conditions with theoretical investigation. Comparison between measured hydrodynamic forces and predicted forces using the approximate formulae are made, and close agreement is obtained. Numerical simulations of turning motion and zigzag manoeuvre for ships which are not included in the database, are also carried out. Simulated results of ship manoeuvring agree well with model test results.