Scanning measurement method of buttock contour line at ship bottom

WU Jun; DING Shen-qi; YU Kui; LI Xiao-biao; MA Xi-qin

Volume 14 Issue 2

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WU Jun, DING Shen-qi, YU Kui, LI Xiao-biao, MA Xi-qin. Scanning measurement method of buttock contour line at ship bottom[J]. Journal of Traffic and Transportation Engineering, 2014, 14(2): 62-67.

Citation:

WU Jun, DING Shen-qi, YU Kui, LI Xiao-biao, MA Xi-qin. Scanning measurement method of buttock contour line at ship bottom[J]. Journal of Traffic and Transportation Engineering, 2014, 14(2): 62-67.

WU Jun, DING Shen-qi, YU Kui, LI Xiao-biao, MA Xi-qin. Scanning measurement method of buttock contour line at ship bottom[J]. Journal of Traffic and Transportation Engineering, 2014, 14(2): 62-67.

Citation:

WU Jun, DING Shen-qi, YU Kui, LI Xiao-biao, MA Xi-qin. Scanning measurement method of buttock contour line at ship bottom[J]. Journal of Traffic and Transportation Engineering, 2014, 14(2): 62-67.

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Scanning measurement method of buttock contour line at ship bottom

1.
Southwest Research Institute of Water Engineering, Chongqing Jiaotong University, Chongqing 400016, China
2.
Key Laboratory of Inland Waterway Engineering of Ministry of Transport, Chongqing Jiaotong University, Chongqing 400016, China

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Author Bio:
WU Jun (1981-), male, assistant researcher, PhD, +86-23-66800365, wujun_gd@126.com
Received Date: 2013-12-27
Publish Date: 2014-04-25

Abstract

Abstract

The single-point measurement principle of buttock contour line at ship bottom was analyzed.Acoustic measurement components were used to measure several draught points through reciprocating scanning, various parameters including ship sailing speed, scanning distance and scanning speed were effectively processed, and a new measurement method of buttock contour line at ship bottom based on single-beam sonar sensor was proposed.The acoustic receiving area was taken as constraint condition, the judgement criterion of ship bottom edge was carried out, the reconstruction formula of buttock contour line at ship bottom was deduced, and simulation test was carried out by using small scaled ship model.Test result shows that when ship sailing speed is 2 cm·s^-1, 19 contour points are measured, the draughts of ship bow and poop are 2.91 and 3.09 cm respectively, and the trim is 0.18 cm.When ship sailing speed is 4 cm·s^-1, 10 contour points are measured, the draughts of ship bow and poop are 2.79 and 3.15 cm respectively, and the trim is 0.36 cm.All the measured point data are of good consistency, and the sailing attitude is consistent well with the actual state.
- ship engineering,
- buttock contour line,
- sonar sensor,
- scanning,
- measurement method,
- draught

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References(19)

References

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