Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Non linear analysis of ship motions and loads in large amplitude waves

Mortola, G. and Incecik, A. and Turan, O. and Hirdaris, S. E. (2011) Non linear analysis of ship motions and loads in large amplitude waves. International Journal of Maritime Engineering, 153 (A2). A81-A87.

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A non linear time domain formulation for ship motions and wave loads is presented and applied to the S175 containership. The paper describes the mathematical formulations and assumptions, with particular attention to the calculation of the hydrodynamic force in the time domain. In this formulation all the forces involved are non linear and time dependent. Hydrodynamic forces are calculated in the frequency domain and related to the time domain solution for each time step. Restoring and exciting forces are evaluated directly in time domain in a way of the hull wetted surface. The results are compared with linear strip theory and linear three dimensional Green function frequency domain seakeeping methodologies with the intent of validation. The comparison shows a satisfactory agreement in the range of small amplitude motions. A first approach to large amplitude motion analysis displays the importance of incorporating the non linear behaviour of motions and loads in the solution of the seakeeping problem

Item type: Article
ID code: 41422
Keywords: irregular frequencies, large amplitude waves, ship motions, Naval architecture. Shipbuilding. Marine engineering, Ocean Engineering, Environmental Engineering
Subjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering
Department: Faculty of Engineering > Naval Architecture and Marine Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 13 Oct 2012 13:59
Last modified: 27 Mar 2014 10:34
URI: http://strathprints.strath.ac.uk/id/eprint/41422

Actions (login required)

View Item