Dynamic Stability Analysis of Backhoe Dredger Based on
Time Domain Method

doi:10.1007/s12204-021-2272-x

J Shanghai Jiaotong Univ Sci ›› 2022, Vol. 27 ›› Issue (3): 339-345.doi: 10.1007/s12204-021-2272-x

收稿日期:2020-06-12 出版日期:2022-05-28 发布日期:2022-06-23

Dynamic Stability Analysis of Backhoe Dredger Based on Time Domain Method

CHEN Yihua¹ (陈熠画), CHEN Xinquan¹∗ (陈新权), YANG Qi^1，2 (杨启), OUYANG Yiping¹ (欧阳义平)

(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)

Received:2020-06-12 Online:2022-05-28 Published:2022-06-23

摘要/Abstract

Abstract: 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.

Key words: backhoe dredger, dynamic stability, spud failure, time domain

中图分类号:

U 661

. [J]. J Shanghai Jiaotong Univ Sci, 2022, 27(3): 339-345.

CHEN Yihua1 (陈熠画), CHEN Xinquan1∗ (陈新权), YANG Qi1,2 (杨启), OUYANG Yiping1 (欧阳义平). Dynamic Stability Analysis of Backhoe Dredger Based on Time Domain Method[J]. J Shanghai Jiaotong Univ Sci, 2022, 27(3): 339-345.

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Dynamic Stability Analysis of Backhoe Dredger Based on Time Domain Method

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