In early design stage of ship form design, there are some aspects need to be considered for estimation and evaluation of seakeeping of the ship. This study describes the influence of wave directions on ship motions and the effect of speed on the characteristics of ship seakeeping. In response to this study, various tests of seakeeping in irregular waves are performed in wave basin. The seakeeping tests comprise motions and accelerations tests. Experimental results are presented in tables and graphical form and the ship performances are discussed and compared with recently published data. Results presented in this paper offer practical data and may prove useful for designers at conceptual or preliminary design stages.
UPT. Balai Teknologi Hidrodinamika- BPPTEKNOLOGI, Indonesia.
In the early stage, sailing by ships at North and Artic Seas should be able to break ice which is commonly called as ice-breakers. Dimensions of the ice breakers were not big enough to be used as a cargo or large carrier. As the demand to merchant ships has been increased, the development technologies on hull form design and propulsion system for ice-going ship have been improved gradually. This paper discussed historical ice ships, the development of ships in ice such as ice breaker, double acting ship and offshore floating by taken two parameters into account which is hull form design and propulsion system.
Department of Aeronautical, Automotive and Ocean Engineering, University Teknologi Malaysia, Johor Bahru, Malaysia
Ocean and Aerospace Engineering Research Institute, Indonesia