What’s the meaning of this function-AnyForceMomentMeasure2 ？

[Taejun (MA Taejun)]

Hi，

there are AnyRefFrame, AnyForceBase, AnySeg, and AnyVec3 in the definition of ExoForceOnShankKnee. Does this mean the ExoForce is applied on HumRef by ExoThighFront? So that means there is a pair of forces between HumRef and ExoThighFront? Additionally, FLocal, and MLocal are used to record the localized force and moment. What‘s the orientation of this force？Thanks!

AnyFolder ResultantExoForceOnKnee = {
   AnyForceMomentMeasure2 ExoForceOnShankKnee = {
     AnyRefFrame &HumRef = Main.HumanModel.BodyModel.Left.Leg.Seg.Shank.KneeJoint.KneeNodeRotated;
     AnyForceBase &ExoForce = Main.ExoV2.ForceFile_Left.Force_Left;
     AnySeg &ExoThighFront = Main.ExoV2.Left.Thigh_Segment___1;
     // Exo Thigh Force on Knee in Human Shank ref system. Extension moment by exo results as
     // positive moment about Y-axis. 
     AnyVec3 FLocal = F * HumRef.Axes;
     AnyVec3 MLocal = M * HumRef.Axes;    
   };    
 }; // Exo Force On Knee

Thank you very much!

Best,

TJ

[dschander (Divyaksh S. Chander)]

Hi TJ,

Please see the documentation of AnyForceMomentMeasure and AnyForceMomentMeasure2 and the class examples provided to understand the meaning of AnyForceMomentMeasure2.

AnyForceMomentMeasure2 only measures force and not applies a force.

FLocal and MLocal are defined to orient the coordinate system according to the axes of the HumRef.

Best regards,
Dave