![]() Here, any loadĪttributes which attract wind (#AREA, #PLATE, #TABLE, #TANKER, structural elements, or pieces) will be used with WIND_SPEED (knots) to compute a wind force. In addition to computing the righting arms of the vessel, MOSES will compute the wind heeling arms when the -WIND option is used. In other words, here a "roll" of 2ĭegrees will make the vessel stern go down. ![]() Uses a angle of 90 degrees, the "roll" axis will be moved 90 degrees toward Y and the righting arms will be about the Y axis. Here, the angle is measured positive from the X axis positive toward Y. If this option is used, then the axis for the "roll" is yawed to the angle specified. YAW_ANGLE is the angle of the axis for computing the arms from the vessel X axis. The -YAW option is used to compute righting arms about a skewed axis. The default is, of course, the vessel X axis. Rotation about an axis which can be changed. For this command only, roll is defined as a The vessel, the vessel weight must have been previously defined either in the model itself, or via an &WEIGHT command. Since the righting arm is based on the equilibrium of the buoyancy and weight of For each increment, the program will iterate an equilibrium positionįor the other degrees of freedom and then compute the righting and wind heeling arms. When the command is invoked, it will rotate the vessel NUM times adding INC to the roll angle. Finally, the -WAVE option controls the static Percentage of weight for heave, and arms for the angular motions, and the defaults are 0.0001, 0.01, 0.5. Number of iterations, and -TOLERANCE is used to override the default closure tolerances for heave, roll, and pitch respectively. The option -NUMITER is used to override the default (20) ![]() The option, -FIX, fixes the trim of the vessel during the iterations. If YES/NO is YES, then the trace will be printed, otherwise it will The -ECHO option controls the trace of iterations which is printed at the terminal. To compute righting and heeling arm results, the user should issue a command of the form: Righting and Heeling Arm Curves - Righting and Heeling Arm Curves
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |