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Adding support for 2nd order index-3 DAE using HHT

Open ryakoub opened this issue 5 years ago • 2 comments

It would be nice to be able to solve index-3 DAE type problems without index reduction. This article, and a few others, show the use of HHT (Hilber, Hughes, Taylor) as an extension to \alpha-based Newmark methods as a potential solution to this class of problem. It does also add numerical damping that might be advantageous in some mechanical applications with non-physical high frequency due to numerical discretization.

ryakoub avatar Jul 15 '20 23:07 ryakoub

This is also another article that touches on such methods.

ryakoub avatar Jul 15 '20 23:07 ryakoub

@SebastianM-C maybe we could fit this in?

ChrisRackauckas avatar Jul 16 '20 00:07 ChrisRackauckas