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Title:
SHIP PROPULSION PERFORMANCE PREDICTION DEVICE AND METHOD, AND SHIP OPERATION ASSIST SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/059809
Kind Code:
A1
Abstract:
A ship propulsion performance prediction device (10) is provided with: a theoretical propulsion performance computation unit (20) that computes, using a physical model of a propulsion system of a ship of concern, theoretical propulsion performance with respect to a desired operational condition; and a correction unit (30) that corrects the theoretical propulsion performance, using a flat-water correction term and a disturbance correction term stored in a correction term database (40). The flat-water correction term and the disturbance correction term stored in the correction term database (40) are derived from operational results data by a correction term derivation unit (50). The correction term derivation unit (50) is provided with a flat-water correction term derivation unit (53) for deriving the flat-water correction term using the operational results data and the like under flat-water condition, and a disturbance correction term derivation unit (54) that computes, using the operational results data and the like corresponding to each disturbance condition, a disturbance correction term corresponding to the disturbance condition. In this way, the prediction accuracy of ship propulsion performance in an actual ocean area can be increased.

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Inventors:
ISHIOKA MASAHITO (JP)
KUROIWA RYOTA (JP)
Application Number:
PCT/JP2015/053225
Publication Date:
April 21, 2016
Filing Date:
February 05, 2015
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B63B49/00; G08G3/00; G08G1/00
Domestic Patent References:
WO2011055512A12011-05-12
Foreign References:
JP2009286230A2009-12-10
JP2012086604A2012-05-10
JPS60116593A1985-06-24
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)
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