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.
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]. Journal of Shanghai Jiaotong University(Science), 2022
, 27(3)
: 339
-345
.
DOI: 10.1007/s12204-021-2272-x
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