Is there a way to have Sim DriveLine blocks utilize a table of non-constant friction data, or can they only use constant friction data set in the block's parameters?

I have a table of collected data for accurate friction. Is there a way to include this in a Simscape Driveline model, or would it require calculating the force from a look-up table and then using ideal force and torque sources applied to Simscape Multibody joints.

Thanks,

Answer 1

[Steve Miller]

There are a number of nonlinear blocks that would allow you to specify a nonlinear relationship for friction.

This block lets you define a lookup table to have a nonlinear relationship between speed and viscous friction

https://www.mathworks.com/help/physmod/sdl/ref/nonlinearrotationaldamper.html

This block lets you vary the damping coefficient with any nonlinear relationship between any quantities you can measure

https://www.mathworks.com/help/physmod/sdl/ref/variablerotationaldamper.html

Similar blocks exist for translational mechanical systems.