Input:

Description

Duration:

The analysis duration in seconds. Selection of an appropriate simulation length depends on whether you are running a regular wave or random sea. Refer to Simulation Length for further details.

Time Step:

The fixed time step to be used in the analysis. It is important to choose a time-step which picks up necessary detail in excitation and response. Refer to Choice of Time Step for further details. For wind turbine modelling, NREL recommend that the solution time step for aerodynamic calculations be set such that there are at least 200 time steps per rotor revolution.

Ramp Time:

The time over which applied loads and displacements are gradually increased to their full value. Refer to Load Ramping for further details.