To Create System Measures
1. Click
Measures. The
Measure Results dialog box opens.
2. Click
. The
Measure Definition dialog box opens.
3. Type a descriptive name for your measure, or accept the default name.
4. Select System under Type.
5. Select a Property from the list:
◦ Degrees of freedom
◦ Redundancies
◦ Time
◦ Kinetic energy
◦ Linear momentum
◦ Angular momentum
◦ Total mass
◦ Center of mass
◦ Total centroidal inertia
The units for the property are displayed under Type, as are any components you can measure for that property.
6. If necessary, select a component to measure, and a frame of reference to express the measure.
7. Select an evaluation method for Kinetic energy, Linear momentum, Angular momentum, Center of mass, or Total centroidal inertia measures:
◦ Each time step
◦ Maximum
◦ Minimum
◦ Integral
◦ Average
◦ Root mean square
◦ At time
8. If you select At time, enter a real-number value greater than zero in the Time entry box.
9. Click OK.
10. Graph the measure.