VESTA-ST
   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
     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.

     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

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.