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Coulomb vibration response

ronbak
5-Regular Member

Coulomb vibration response

I am new to Mathcad Prime and my math skills are a little rusty.  I am trying to get a response plot of a non-linear system with Coulomb friction.  The sign of my velocity changes every half cycle.  I figure I need to do some programming to get my response plot.  I haven't had much success and there aren't too many resources available.  I tried the Help and Tutorials and I still am having trouble.

I was hoping somebody could assist me and also point me to some good resources on programming in Mathcad Prime.

Thanks

3 REPLIES 3
Fred_Kohlhepp
23-Emerald I
(To:ronbak)

See attached.

ronbak
5-Regular Member
(To:Fred_Kohlhepp)

Fred, Thank you.

I was close but not close enough

Two things:

in the solve block, what does sign do? I assume it returns + or -.   I tried Help but too many sign results came up.

I corrected my equations but can't get the full plot.  I tried a few ways but keep getting errors.  Can you take a look?

Thank you

Fred_Kohlhepp
23-Emerald I
(To:ronbak)

sign is a function that returns the sign (positive or negative) of its argument

Take a look

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