A Study on Evaluation of Seakeeping Performance for Passenger Ships

Abstract

It is important for modern passenger ships to reduce seasickness of passengers. In the initial design stage of a passenger ship, its seakeeping quality should be evaluated. It is said that there are many reasons which make a passenger be in illness. The vertical acceleration among is considered to have the most significant effect on seasickness. Using the relationship between the vertical acceleration and percentage of vomiting passengers deduceted by O' Hanlon & McCauley, the seakeeping quality of a 6,000GRT cruise ship is evaluated in a regular head wave of 2m wave height in the present paper. The results show that the percentage vomiting is minimum at SS.3 and at it is maximum at the bow. The effects of the size of a ship, the cruising speed of a ship and anti-pitching fins are discussed in detail.