Dynamic Stability Analysis of Backhoe Dredger Based on Time Domain Method  

作　　者：CHEN Yihua CHEN Xinquan YANG Qi OUYANG Yiping 陈熠画;陈新权;杨启;欧阳义平(Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Jiao Tong University Underwater Engineering Institute Co.,Ltd.,Shanghai 200231,China)

机构地区：[1]Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]Shanghai Jiao Tong University Underwater Engineering Institute Co.,Ltd.,Shanghai 200231,China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2022年第3期339-345,共7页上海交通大学学报（英文版）

摘　　要：When incidents happen with the positioning spud of a backhoe dredger,the hull loses stability,heels significantly,and may even capsize under extreme conditions.Coupling the hydrodynamics and spud vibrations,this paper investigates the dynamic stability of a backhoe dredger after spud failure based on the time domain method.The maximum dynamic heeling angle verifies the stability of the backhoe dredger.To identify the influences of environmental load,operating conditions,and spud-soil interactions,numerical motion simulations were conducted in the time domain.The main conclusions on dynamic stability consider the influences of relative environmental and operational factors.This study provides a powerful and efficient approach to analyze the dynamic stability of backhoe dredgers and to design flooding angles.

关 键 词：backhoe dredger dynamic stability spud failure time domain 

分 类 号：U661[交通运输工程—船舶及航道工程]