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21 November 2017

Simulations, testing and laser in vacuum

Our traditional VVA Seminar took place in Lázně Bělohrad in northern Bohemia. And it was a success.

The event, held on 9th November at the Tree of Life spa resort, celebrated its 10th anniversary this year. As many as 140 attendees came to this beautiful under-the-mountains spa town for a traditional dose of inspiration, technical news and trends, as well as to have a chat with old friends and new acquaintances alike.

And the topic? Numeric simulations and testing. Here’s a brief summary of what the seminar had to offer.

Racing Skoda, airbags and tests of plastics

The seminar started at 09:00 with an opening word by the Director of Swell, Petr Havlík. His colleague, Martin Kopecký, was quick to show up with the first presentation on how simulations were used during the development of the Škoda Fabia R5 rally car.

Next in line was Gernot Pauer of Swell’s parent company, Altran. He demonstrated how integrated side airbags are developed and what role virtual simulations play during the process.

A very interesting topic was brought up by Jakub Hak, Swell’s expert on chemical durability tests of interior and exterior parts. And that’s exactly what his speech was about: how interior plastic parts are tested, what kinds of examinations are used, what chemicals are applied and how the evaluations are carried out.

Fogged headlights and students with a formula

After sandwiches and coffee, the programme continued. Michal Matejka and Jiří Dokoupil of Hella Autotechnik Nova spoke about a front part of our cars: how headlights get fogged and defogged.

Next up: a man appears on the stage, dressed in a yellow protective overall, his mouth covered with a mask. It’s David Snopek of the Institute of Physics of the Czech Academy of Sciences. His field isn’t automotive engineering, really, but one that’s no less interesting and fascinating. He’s an expert on lasers and ‘micro-engineering’ that is played out in a vacuum!

The last two items of the morning section were delivered by Jörg Sauer of LB-acoustics Messgeräte, who showed how models based on data from contactless modal tests are evaluated, and Jan Michálek of the Faculty of Mechanical Engineering of the Czech Technical University in Prague, who presented a traditional topic: student formulas (engine development, specifically).

Loud mirrors

When all the goodies the hotel Chef presented for lunch were consumed, it was time for the afternoon section to begin. Robert Fiedler of MECAS ESI was first. He spoke about aero-acoustic simulation — how noise in the car’s cabin is measured and how much (acoustic) mischief a common wing mirror can do.

Petr Koňas of SVS FEM weighed in with a presentation on additive production in the automotive industry: he showed the audience a simulation of the FDM process during 3D printing.

Vojtěch Klír of the Centre of Vehicles for Sustainable Mobility, which is part of the Czech Technical University, mentioned a wide range of options this site has to offer for the experimental and model description of vehicle behaviour in traffic.

Before the afternoon snack was served, the audience heard Antonín Potěšil of LENAM talk about how numerical and experimental modal analysis may be used during the development of composite components.

Automatic brakes and a view of the future

The final three speeches were delivered. Martin Horáček of Ricardo Prague offered a view of the future: he discussed the next generation of combustion engine control units, which will use a one-dimensional thermodynamic model running in real time.

Vratislav Ondrák, who works for the same company, shared his experience of the optimisation of engine-to-wheels power transfer, or how powertrain components are designed and dimensioned.

The seminar’s final contribution was by Patrik Zíta of TÜV SÜD Czech. He offered his view on simulations of the automatic braking system.

And that was it. The last necessary item was Peter Havlík’s big “thank you” to all participants — and the organisers could say to themselves with relief: “So, this year’s history!”

 

 

 

Seminar VVA2017

Official Newsletter of VVA2017 Seminar

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