I am working on simulating an anterior drawer test for a knee model. I have prescribed a 140N Rigid force (Rigid constraint) to the tibia, but I am unsure what is the correct time step and step time to use. I would like to have data points for every 10N but when I have done two different time steps and step sizes, my data gets different results.
Here is what I have so far:
#Data : Y - displacement
1 0
2 -0.277363956
3 -0.554273546
4 -0.829988301
5 -1.10360467
6 -1.37464225
7 -1.64258349
8 -1.90781415
9 -2.1707046
10 -2.43138742
11 -2.69004941
12 -2.94677401
13 -3.20156789
14 -3.45448184
15 -3.7055347
Time steps: 14
Step size: 0.01
Max Step size: 0.01
Min step size: 0.0001
#Data : Y - displacement
1 0
2 -1.28666353
3 -2.29551077
4 -3.12529516
5 -4.18544292
6 -4.79165077
7 -5.41136122
8 -5.99449301
9 -6.94237328
10 -7.85927868
11 -10.9846926
12 -11.7048731
13 -12.36339
14 -14.7815981
Time step: 10
Step size: 0.07
Max step size: 0.07
Min step size: 0.0001
I am not sure how to get the correct data points as they both produce different displacement data. How do I know what would be a good time stamp to choose?
Thanks,
Lexie
Here is what I have so far:
#Data : Y - displacement
1 0
2 -0.277363956
3 -0.554273546
4 -0.829988301
5 -1.10360467
6 -1.37464225
7 -1.64258349
8 -1.90781415
9 -2.1707046
10 -2.43138742
11 -2.69004941
12 -2.94677401
13 -3.20156789
14 -3.45448184
15 -3.7055347
Time steps: 14
Step size: 0.01
Max Step size: 0.01
Min step size: 0.0001
#Data : Y - displacement
1 0
2 -1.28666353
3 -2.29551077
4 -3.12529516
5 -4.18544292
6 -4.79165077
7 -5.41136122
8 -5.99449301
9 -6.94237328
10 -7.85927868
11 -10.9846926
12 -11.7048731
13 -12.36339
14 -14.7815981
Time step: 10
Step size: 0.07
Max step size: 0.07
Min step size: 0.0001
I am not sure how to get the correct data points as they both produce different displacement data. How do I know what would be a good time stamp to choose?
Thanks,
Lexie
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