Unable to achieve required assembly error tolerance.

[krishna raj]

Hi ,

while performing the analyse tool option.

How can i avoid the Unable to achieve required assembly error tolerance error,and why its showing this

am unable to get the muscle analysis reports


below is the messages:

AssemblySolver::track() attempt Failed: SimTK Exception thrown at Assembler.cpp:973:
Method Assembler::track() failed because:
Unable to achieve required assembly error tolerance.
Assembly error tolerance achieved: 1.4629615574524024e-10 required: 1e-10.
Model unable to assemble: AssemblySolver::assemble() Failed: SimTK Exception thrown at Assembler.cpp:897:
Method Assembler::assemble() failed because:
Unable to achieve required assembly error tolerance.
Assembly error tolerance achieved: 1.4629605860072559e-10 required: 1e-10..Model relaxing constraints and trying again.
Printing results of investigation subject01_walk1 to C:\Users\student\Desktop\load on head\HYOID_1.2_ScaledStrenght_UpdatedInertia (1)\opensim\3 with helmet before work roll pitch yaw\3 with helmet before work roll pitch yaw\analyse\new analyse\new analyse result
IO.OpenFile(const string&,const string&): failed to open C:\Users\student\Desktop\load on head\HYOID_1.2_ScaledStrenght_UpdatedInertia (1)\opensim\3 with helmet before work roll pitch yaw\3 with helmet before work roll pitch yaw\analyse\new analyse\new analyse

regards
krishnaraj gr

[Mohammadreza Rezaie]

Hi, do you have constraints in your model, such as WeldConstraint or CoordinateCouplerConstraint? Does it happen again if you uncheck the Filter coordinates in Analyze tool?

[krishna raj]

Hi Mohammadreza Rezaie,

Thanks for the response,

in my model i didnt add any constraints in my model,
i need the muscle active fiber force which is not comping because of the error.

what can i do now,almost in my final stage of report submission ,plz help

regards
krishnaraj

[Mohammadreza Rezaie]

Relaxing the model assembly accuracy may help. You can find it in the Properties tab.

Annotation 2024-04-29 200744.jpg (29.05 KiB) Viewed 752 times

Try 1e-7 for example.

Hope this helps.

[krishna raj]

Hi , i have a 3 new constaint added in my model
,they are the coupler constraint ,does it affect the output

regards
krishnaraj