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T
TV_79601821-Visitor
1-Visitor
February 4, 2022
Question

Re: Toolbox: Solving Ordinary Differential Equations symbolically

  • February 4, 2022
  • 1 reply
  • 1976 views

As per this thread , same issue.

Hello Luc,

 

Many thanks for developing the LODEsolve function.

 

In the explanation is stated:

" You cannot specify an initial condition for a value of the independent parameter other than 0. See examples on how to deal with that situation".

 

I have a curved beam with three boundary conditions at each end of the beam (theta = 0 and theta = phi). The beam is described by three second order differential equations. In can't find an example'that deals with this situation. Is it possible to have multiple boundary conditions at different independent parameters? If yes, can you explain how to handle this situation?

 

Kind regards,

 

Ton

 

 

1 reply

L
LucMeekes23-Emerald IV
23-Emerald IV
February 4, 2022

Can you share the Mathcad worksheet file?

Preferably saved as a Mathcad 11  (.MCD) file.

 

Luc

T
TV_79601821-VisitorAuthor
1-Visitor
February 4, 2022

Yes I can, see attached file.

 

Ton

L
LucMeekes23-Emerald IV
23-Emerald IV
February 4, 2022

Well Ton,

LucMeekes_0-1644006222312.png

LucMeekes_1-1644006285972.png

LucMeekes_2-1644006630507.png

Or, in full:

LucMeekes_3-1644006659683.png

Attached is the Mathcad 11 file.

Note that you need to use the Mathcad 15 (.xmcd) edition of the LODEsolve file to run it in Mathcad 15.

(You can either remove the top of the attached file, notably the collapsed region, and insert the LODEsolve.xmcd file as a reference in place, or you can copy the equations over to a copy of the LODEsolve.xmcd file.)

 

Success!
Luc

 

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