model dynamic command
Syntax
- model dynamic keyword
-
Set parameters for a dynamic material analysis. The command is only available if
model configure dynamic
has been specified, and if the Dynamic Option is present. See the topic dynamicREF [CS: need the Common solution here] for more information.- active b
The dynamic process is on, by default, when the
model configure dynamic
command is given. Specify active off to suppress dynamic calculations.
- list
Display dynamic calculation-mode information.
- time-total f
f is the accumulated dynamic time for the model. This can be reset to any value, and will continue to be accumulated during cycling after that.
- slave b
Specify that dynamic mode is to be considered a slave, and cycled to equilibrium after each master step has been taken. This particular option is provided for completeness, but is rarely useful in dynamic calculations.
- substep i
Specify the maximum number of steps the dynamic process will take when solving with slave on.
- timestep
- automatic
The stable timestep is calculated based on the current stiffnesses and masses of all objects in the system. This is the default setting.
- fix f
Set the timestep to be the fixed value f. All timestep calculations are skipped. Setting a value greater than the calculated critical timestep will result in an error.
- increment f
Set the incremental amount that the timestep is allowed to increase from one cycle to the next in auto mode. By default, f = 1.05. The timestep can decrease by any amount to ensure stability.
- maximum f
Set the maximum allowed timestep. By default, there is no bound to the maximum timestep.
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