SHIP PERFORMANCE SIMURATOR IN ACTUAL SEAS: VESTA
Ship Performance Simulator in Actual Seas: VESTA has been developed. VESTA accurately estimates the external forces acting on a ship in actual seas and calculates the ship speed and fuel consumption, considering the main engine operation limitations. It can also simulate performance under arbitrary sea conditions, calculate Energy Efficiency Design Index, and conduct the assessment for the EEDI minimum power requirements.
UNITAS, a program to assist in the preparation of VESTA input data, and EAGLE, a program to assist in the preparation of ship monitoring data, are also available.
| ☆Evaluate the performance in actual seas for a constructed ship |
| ☆Improve operations as for SEEMP |
| ☆Predict operational performance in combination with weather forecast data, and analyze and evaluate the operational performance of ships in service. (*1) |
☆Calculate EEDIweather with the weather factor (fw) in the representative sea condition according to the guideline (
 MEPC.1/Circ.796
）.
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☆Conduct the assessment on the EEDI Minimum Power Requirement according to the guideline (
RESOLUTION MEPC.262(68)
). (*2)
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☆Calculated the waves and wind corrections for speed trials according to the
ITTC guideline(2017)
and ISO 15016 (2015) methods. (*3)
|
(*1) Weather data from the Japan Weather Association POLARIS Hindcast corresponds to the VESTA input format.
(*2) Certification from Nippon Kaiji Kyokai has been obtained.
(*3) The program has been certified by Nippon Kaiji Kyokai as compliant with the calculation method of the ITTC guideline (2017). It also supports file input for PrimeShip-GREEN/ProSTA, a software to analyze ship speed from speed trials provided by Nippon Kaiji Kyokai.
VESTA Top Screen
(Runs on EXCEL)
The leaflet is available here.
National Maritime Research Institute(NMRI)
6-38-1, Shinkawa, Mitaka-shi, Tokyo 181-0004 Japan
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