Basic Study of Enhanced Weight Stabilizer (EWS)

Basic Study of Enhanced Weight Stabilizer (EWS)

The present paper analyzes the components of the moment and proposes an improvement of the Vertical Weight Stabilizer (VWS) invented by Hirayama 1), confirmed by Hirakawa et.al 2), Kakizoe et.al 3) and Funamizu 4). This improvement consists in modifying the guide shape from a straight line to a curv...

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Veröffentlicht in:Journal of the Japan Society of Naval Architects and Ocean Engineers 2011, Vol.13, pp.75-85
Hauptverfasser: Kogishi, Andre Mitsuo, Hirayama, Tsugukiyo, Hirakawa, Yoshiaki, Takayama, Takehiko
Format: Artikel
Sprache:eng
Schlagworte:
Computer simulation
Curved
Damping
Marine
Mathematical models
Naval
Oceans
Straight lines
System built
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Beschreibung
Zusammenfassung:The present paper analyzes the components of the moment and proposes an improvement of the Vertical Weight Stabilizer (VWS) invented by Hirayama 1), confirmed by Hirakawa et.al 2), Kakizoe et.al 3) and Funamizu 4). This improvement consists in modifying the guide shape from a straight line to a curved one to increase the damping effect and reduce the ship rolling. We call this as Enhanced Weight Stabilizer (EWS). Numerical simulations of VWS experiments2) were done to validate a mathematical model of the system built for this study and after that we apply it to study the effect of changing the guide shape on the damping. In this basic study, three curved shapes are analyzed and possible improvements are found.
ISSN:1880-3717
1881-1760
DOI:10.2534/jjasnaoe.13.75