George Laird's blog

10th European LS-DYNA Conference, Wurzburg, Germany

This biennial LS-DYNA conference was held in Würzburg, Germany and was hosted by DYNAmore of Germany. Predictive Engineering was represented by Adrian Jensen and George Laird where we presented our new LS-DYNA MPP Program Manager interface. Key topics of interest were the new CFD capabilities within LS-DYNA, extensive code improvements toward increased scalablity (MPP and hybrid SMP/MPP) and advanced composites modeling. Besides over 170 papers (see DYNALook for a digital archive of the papers) concurrent workshops were given on implicit, CFD, composites, dummy positioning, etc.

As with all LS-DYNA conferences, the social activities were outstanding with beer gardens, gala dinners and lots of time to discuss engineering simulation with the over 450 attendees. If you are using LS-DYNA or interested in nonlinear, transient analysis, the LS-DYNA conferences are great venues to network, learn new skills or just expand your horizons.

 

10th European LS-DYNA Conference / Predictive Engineering LS-DYNA Consulting Services

Femap and LS-DYNA: Rocket Science Made Easy

This presentation was made at last year's Femap Symposium in Atlanta but it is very relevant to anyone interested in learning about how Femap works with LS-DYNA. The presentation is titled: Femap and LS-DYNA: Rocket Science Made Easy  If you would like to see the videos used in this presentation, click on the graphic below and it'll take you to our YouTube video. The next Symposium for us, will be in Seattle. If you would like to register for this Femap and NX Nastran Symposium, just click on the prior highlighted text. We plan on having Mark Sherman out from the Femap Development Team and the usual host of characters to present hard-core technical information on how you can grow and leverage your Femap and NX Nastran skills. Plus, it should be some killer networking and we'll have a no-host bar at the end of the day.

Femap and LS-DYNA Rocket Science Made Easy - A presentation by Predictive Engineering LS-DYNA Consulting

Crash and Drop Simulation of Jet Engine Stand

It's nice to know that shipping fixtures have to meet stringent targets for crash, drop and static loading. It would be sort of scary to think of a 3200 kg jet engine breaking lose from its shipping fixture during a 9g crash event and slamming through the bulkhead of a jet liner and into the cockpit. Jet engine stands also have to handle abuse loading due to drops or smashing into walls at 2g loading. Finally, since the complete assembly is often transported over roads, its first natural freqencey needs to be above 10Hz. Historically, these requirements were met by testing and fixture weight was of secondary concern. As we all know, if something is flying, then extra weight is lost revenue. This FEA consulting project took the client's CAD geometry and idealized it down to FEA model that could quickly run implicitly and explicitly using LS-DYNA. The results correlated nicely with the experimental results and indicated that the stand was beautifully designed with little margin left on the table.

 

FEA of Jet Engine Transport Stand - LS-DYNA Nonlinear Consulting Services

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