Dynamic analysis of moored multi-body system

Abstract

Needs for accurate analysis of dynamic behavior of moored offshore structure have been increasing in the shipbuilding industry, and there are many analysis codes for analysis of them. However, they cannot treat a detailed motion during offshore installation using floating barges and cranes. In this study, therefore, coupled behavior of the moored floating multibody body is analyzed. In here, multibody means the interconnected several bodies by joints. The equations of motions for multibody and mooring line are introduced, and input/output between multibody module and mooring line module are defined. The analysis results were validated by comparing with model test. Copyright ？ 2018 by the International Society of Offshore and Polar Engineers (ISOPE)