VESTA-ST
Calculation program for external forces due to winds and waves on sea trial
Calculation program for external forces due to winds and waves on sea trial
| 日本語 |
| VESTA-ST is the calculation program for external forces due to winds and waves on sea trial based on the 2017 ITTC Recommended Procedures and Guidelines. |
Functions of the program
| Input items |
Data for ship form Conditions of sea trial: waves, winds, density of sea water and air pressure Ship speeds for the calculation |
| Output items |
Frequency responses for heave, pitch and added resistance in regular waves Added resistance coefficient in short crested irregular waves Relative wind direction and wind resistance coefficient External forces due to waves on sea tiral* *applicable to measured specrtum as well as standard spectrum External forces due to winds |
System requirements and Application
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System requirements OS: Microsoft Windows 7/8/8.1/10 (32 or 64 bit) Softwave: Microsoft EXCEL 2010 or later ※Network environment is not required. |
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The program will be provided only for the analysis of speed/power trials of ships. Please send a filled-in application form via e-mail. Application form |
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| Top Menu sheet (VESTA-ST is operated on the Excel.) |
| □The program is based on the 2017 ITTC Recommended Procedures and Guidelines*. |
| *ITTC Recommended Procedures and Guidelines 7.5-04-01-01.1; 2017 |
| □External forces due to waves is calculated by the NMRI method. |
| □External forces due to winds is calculated by the equations of Fujiwara et al. |
| □Calculated results can be used in the analysis program* for speed/power trials by Class NK. *PrimeShip GREEN/ProSTA ver.ITTC. |
| □The program has been certified by Class NK. |