[petsc-users] TS support for second order systems

Matthew Knepley knepley at gmail.com
Thu Mar 10 12:11:09 CST 2016


On Thu, Mar 10, 2016 at 11:46 AM, Manav Bhatia <bhatiamanav at gmail.com>
wrote:

> Hi,
>
>    Is there explicit support for second-order systems arising from
> structural dynamics in the TS library?
>
>    It can certainly be written as an equivalent first-order system, but
> some structural dynamics simulations prefer to tune the two-parameter
> Newmark solvers to provide extra damping for high-frequency modes.
>
>    Something equivalent might be possible for equivalent first-order
> representation, but I wanted to check if there is any support along those
> lines.
>

No, we only have support for first order systems.

  Thanks,

    Matt


> Thanks,
> Manav
>
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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