If the simulation panel is not open,
select Motion
and
then select Show
Simulation Panel
or select
the 
button.
The Simulation panel appears. If you have not already simulated your
mechanism, the title bar displays No Simulation.
To modify the simulation settings, select
the Options button 
on the Simulation panel.
The Options dialog box appears.
Select the Simulation tab. Learn about the options in the Simulation tab.
Modify the simulation settings, as needed.
Select OK to close the Options dialog box.
Select the Simulate
button on the Simulation panel to begin the simulation.
If the Animate during simulation
setting is off, the scroll bar on the toolbar advances as the simulation
advances, and the Time and Step text boxes show the current simulation
time and frame. If the Animate during
simulation setting is on, the mechanism animates as the simulation
advances.
After the simulation is complete, use the Forward Play, Reverse Play, Fast Forward, Fast Rewind, or Reset buttons to animate or reset the mechanism.