Specifications
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Double-click it, and its value is shown in the Object Description Window. You should find a value of
Main.LigModel.LigModel.L0 = 1.300000;
This is the slack length of the ligament at load time as defined in the ligament model. Now, run the
LigCali.LigamentLengthAdjustment operation, and subsequently double-click the L0 property again. Now you
will see a value of
Main.LigModel.LigModel.L0 = 1.573132;
The system has extended the ligament length a bit to fit the joint angle of -pi/4. Run the
InverseDynamicAnalysis study again, and see the influence of the increased slack length:
You can find the final version of the ligament demo file here
.
The mechanical elements
Musculoskeletal modeling is really just an advanced application of the laws of mechanics described by one of
the greatest scientists of all times, Sir Isaac Newton, more than 300 years ago. So the elements of the
models you are working on in the AnyBody Modeling system are mostly mechanical in nature, and to use










