Experimental investigations of higher-order springing and whipping-WILS project

• Main Authors: Hong Sa Young, Kim Byoung Wan
• Format: Article
• Language: English
• Published: Elsevier 2014-12-01
• Series: International Journal of Naval Architecture and Ocean Engineering
• Subjects: Springing; Whipping; Backbone model; Containership; Resonant whipping; Higher-order springing; Torsion springing and whipping
• Online Access: http://www.degruyter.com/view/j/ijnaoe.2014.6.issue-4/ijnaoe-2013-0237/ijnaoe-2013-0237.xml?format=INT

Springing and whipping are becoming increasingly important considerations in ship design as container ships increase in size. In this study, the springing and whipping characteristics of a large container ship were investigated through a series of systematic model tests in waves. A multi-segmented hull model with a backbone was adopted for measurement of springing and whipping signals. A conversion method for extracting torsion springing and whipping is described in this paper for the case of an open-section backbone. Higher-order springing, higher-mode torsion responses, and the effects of linear and nonlinear springing in irregular waves are highlighted in the discussion.