octable

Mapdl.octable(val1='', val2='', val3='', val4='', val5='', val6='', val7='', **kwargs)

Defines an ocean load using table data.

APDL Command: OCTABLE

Parameters:

val1, val2, val3, … , val6

Values describing the basic ocean load, a current condition, or a wave condition.

Notes

The OCTABLE specifies table data that defines the ocean load. The terms VAL1, VAL2, etc. are specialized according to the input set required for the given ocean load.

The program interprets the data input via the OCTABLE command within the context of the most recently issued OCTYPE command.

There is no limit to the number of data input.

Input values in the order indicated.

This command is also valid in PREP7.

You can define the following ocean data types:

If the current is constant, only one OCTABLE command is necessary and Dep is not required.

For waves, the current profile is stretched or compressed linearly up to 10 percent.

The first Dep value (representing the mean sea level) must be zero. The last Dep value (representing the mud line) must be equal to the DEPTH value input on the OCDATA command.

The Cartesian Z values used to locate nodes, etc. decrease as one moves from the ocean surface to the sea floor, but the Dep values increase. See Figure: 5:: Basic Ocean Data Type Components .

Dep is not affected by changes to Zmsl on the OCDATA command, as that value simply relocates the origin.

When specifying an ocean wave type, issue the OCTABLE command to input either wave location data or wave spectrum data.

Hints for Wave Location Input:

The TIME command is not used, except perhaps to identify the load case.

The phase shift (Ps) determines the wave position (that is, the point at which the load is to be applied).

When using the Stokes fifth-order (KWAVE = 2) or stream function (KWAVE = 3) wave type, issue only one OCTABLE command.

The valid range of the order of the stream function (NORDER) is 3 through 50. If no value is specified, the program determines a value automatically.

When using the diffracted wave type (KWAVE = 8), an OCREAD command is also required to read in the hydrodynamic data from the hydrodynamic analysis.