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Project Two: Making coordinates a function of time

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f14-hschoenberg

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Unread post Sat Dec 13, 2014 11:44 am

Project Two: Making coordinates a function of time

I am a little confused as to how to implement time into my code. I understand that the generalized coordinates will change with time, but I am unsure how to make them a function of time.

My intuition tells me that I have to somehow make phi1 dependent on time based on the applied torque, but I am blanking on how to do this.

Any help is much appreciated!
Thanks,
Holly
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f14-hschoenberg

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Unread post Sat Dec 13, 2014 11:59 am

Re: Project Two: Making coordinates a function of time

I may have figured it out. Is this just using Newmark?

Thanks,
Holly
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f14-aahmed22

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Unread post Sat Dec 13, 2014 2:53 pm

Re: Project Two: Making coordinates a function of time

Holly if you figured it out can you let me know? How is the acceleration expected to change with Newmark in every time iteration if the jac, epsilon and omega do not depend on time but rather, on "x"?
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f14-mewalczak

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Unread post Sat Dec 13, 2014 7:21 pm

Re: Project Two: Making coordinates a function of time

I am also confused as well on how we implement time. If some one could point us in the right direction that would be great! Since phi_dot_0 is 30 rad/s, I think it has something to do with this and the torque but I am still not sure.

Thanks

Mike
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Dan Negrut

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Unread post Sun Dec 14, 2014 5:02 pm

Re: Project Two: Making coordinates a function of time

Mike - is this clear at this point?
i hope your other post should take care of it.
if it still doesn't make sense, then please post a follow up question.
dan
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f14-mewalczak

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Unread post Mon Dec 15, 2014 3:13 pm

Re: Project Two: Making coordinates a function of time

It's clear Dan, thanks for checking. My results are diverging however so I need to debug the elements in my code.

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