DYNAMIC ANALYSIS OF MIDWATER TRAWL SYSTEM BY A 2-DIMENSIONAL LUMPED MASS METHOD

Authors
HU FX KO M TOKAI T KANEHIRO H
Citation
Fx. Hu et al., DYNAMIC ANALYSIS OF MIDWATER TRAWL SYSTEM BY A 2-DIMENSIONAL LUMPED MASS METHOD, Fisheries science, 61(2), 1995, pp. 229-233
Citations number
6
Categorie Soggetti
Fisheries
Journal title
Fisheries science → ACNP
ISSN journal
09199268
Volume
61
Issue
2
Year of publication
1995
Pages
229 - 233
Database
ISI
SICI code
0919-9268(1995)61:2<229:DAOMTS>2.0.ZU;2-Q
Abstract
This paper analyzes mathematically the dynamic properties of a midwate r trawl system which is composed of a trawler, trawl net, otter boards and warp. Taking the midwater trawl system of ''SINYO Maru'' of the T okyo University of Fisheries as an example, the effects of changing to wing speed and warp length on the system dynamics are demonstrated. Th e ''overshoot'' phenomenon caused by sinking of the otter board while lengthening the warp is clearly explained.