RRA extreme mass adjustment

[Valentina Gallego]

i was running the RRA and I got this crazy results for mass adjustment

* Recommended mass adjustments:
* Total mass change: -2.51188e+009
* ground: orig mass = 0, new mass = 0
* pelvis: orig mass = 11.777, new mass = -3.72847e+008
* femur_r: orig mass = 9.3014, new mass = -2.94472e+008
* tibia_r: orig mass = 3.7075, new mass = -1.17375e+008
* patella_r: orig mass = 0.0862, new mass = -2.729e+006
* talus_r: orig mass = 0.1, new mass = -3.16589e+006
* calcn_r: orig mass = 1.25, new mass = -3.95736e+007
* toes_r: orig mass = 0.2166, new mass = -6.85732e+006
* femur_l: orig mass = 9.3014, new mass = -2.94472e+008
* tibia_l: orig mass = 3.7075, new mass = -1.17375e+008
* patella_l: orig mass = 0.0862, new mass = -2.729e+006
* talus_l: orig mass = 0.1, new mass = -3.16589e+006
* calcn_l: orig mass = 1.25, new mass = -3.95736e+007
* toes_l: orig mass = 0.2166, new mass = -6.85732e+006
* torso: orig mass = 26.8266, new mass = -8.49301e+008
* humerus_r: orig mass = 2.0325, new mass = -6.43467e+007
* ulna_r: orig mass = 0.6075, new mass = -1.92328e+007
* radius_r: orig mass = 0.6075, new mass = -1.92328e+007
* hand_r: orig mass = 0.4575, new mass = -1.44839e+007
* humerus_l: orig mass = 2.0325, new mass = -6.43467e+007
* ulna_l: orig mass = 0.6075, new mass = -1.92328e+007
* radius_l: orig mass = 0.6075, new mass = -1.92328e+007
* hand_l: orig mass = 0.4575, new mass = -1.44839e+007
* barbell: orig mass = 4.005, new mass = -1.26794e+008

is it caused by a units problem? or for the actuators file. How do I know what should the optimal forces and control values be?

[Dimitar Stanev]

Just a guess, are you apply ground reaction forces in your RRA?

[Valentina Gallego]

yes

[jimmy d]

There is some error in how you applying the forces to the model. Could be units, could be the location of force application- hard to tell just from the mass adjustment readout. If you post a zip of everything someone can use to reproduce the problem then someone can try and see what is wrong.