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Maneuvering simulations of pusher-barge systems 总被引:1,自引:1,他引:0
Koh Kho King Hironori Yasukawa Noritaka Hirata Kuniji Kose 《Journal of Marine Science and Technology》2008,13(2):117-126
Pusher-barge systems were studied in nine different configurations. Captive model tests were performed at the Hiroshima University
Towing Tank and the hydrodynamic derivatives for the various configurations were obtained. At a service speed of 7 knots,
pusher-barge systems with the same number of barges but arranged in a row (shorter length overall but with a larger breadth)
require more power to operate than those that were arranged in a line. When the length overall increased, the tactical diameter,
advance, and transfer distances also increased, mainly due to the significant increase in the moment of inertia when barges
are arranged in a line, rather than in a row. All pusher-barge systems had small first and second overshoot angles. Pusher-barge
systems with the same number of barges had a longer response time to the rudder angle of attack and required a longer stopping
distance when arranged in a line, mainly due to the increased moment of inertia and reduced resistance when barges are arranged
in this way. 相似文献
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Kho King Koh Hironori Yasukawa Noritaka Hirata 《Journal of Marine Science and Technology》2008,13(3):256-268
Unconventional arrangements of pusher-barge systems were studied in this paper. Pusher-barge systems consisting of 4, 6, and
8 barges with one pusher were tested in various combinations. Captive model testing was performed on the various combinations
at the Hiroshima University towing tank. Hydrodynamic derivatives of the systems were obtained from the model test data by
using the least-square analysis method. For asymmetric conditions, the hydrodynamic derivatives and N′ββ were added to the force and moment equations in order to obtain better fitting of the least-square curves. Motion equations
were modified to cover the asymmetric cases of pusher-barge systems with lateral force and yaw moment due to the asymmetry
arrangement. Turning simulations (with 20° sudden angle change) were carried out and a comparison of advance distance and
tactical diameter made.
An erratum to this article can be found at 相似文献
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