EXTENDED GDQ AND RELATED DISCRETE ELEMENT ANALYSIS METHODS FOR TRANSIENT OFFSHORE MECHANICS AND ENGINEERING PROBLEMS

摘要

The extended GDQ proposed by the author is used to develop solution algorithms for solving the discrete transient equation system of an offshore mechanics or arctic engineering problem. It is a direct integration approach. Two integration methods are developed. They are time-element by time-element method and stages by stages method. These two time integration algorithms can be used to solve generic discrete transient equation system of an originally discrete system or a discrete system resulting from the discretization of a transient system of offshore mechanics and arctic problems by using a certain discretization technique such as the DQEM, FEM, FDM,..., etc.