Passive Flexion
A predictive model of passive flexion of the knee to 45 degrees. All materials and contact interactions are the same as described on the wiki frontpage.
Loads and Boundary Condtions
| | Tibia | Femur | | x | 0 | free | | y | 0 | free | | z | 0 | -100 N ramp t=0-1sec; constant t=1-2.5sec | | Rx | 0 | 0 deg t=0-1 sec; 45 deg t=1-2.5sec | | Ry | 0 | free | | Rz | 0 | free |
Platform
Employed 8 threads on Ohio Supercomputing Center's Glenn cluster - 1 node; 2 quad core 64 bit AMD Opterons; Linux.
Results
The model converged with a solution wall clock time of 32:44:25. The equivalent model in dynamic analysis on 8 threads took 10:17:39. The static model took approximately 218% longer to solve.
Kinematic Comparison
The static and dynamic models exhibited essentially identical kinematics as seen in the following plots.
Flexion
attachment:flexion.png
Internal/External Rotation
attachment:ie.png
Varus/Valgus Rotation
attachment:vv.png