To make sure the tires, wheel rims and other parts will survive the many kilometers without breaking down, the manufacturers test prototypes in test rigs to discover their service life. Such a test often lasts several weeks, yet it can be rendered useless by malfunctions, such as when bearings or sensors wear out.
In the Computer Aided Robust Design (CAROD) project, research scientists from seven Fraunhofer Institutes are devising methods with which malfunctions of this nature can be simulated ahead of time. The researchers are using the results to develop sturdy test rigs for life-cycle tests.
“Today the development and testing of prototypes – be they entire cars or individual components – takes place mainly in the computer,” says Andreas Burblies, spokesman for the Fraunhofer Numerical Simulation Alliance. But this simulation only reflects reality to a limited extent. “As a rule, there are no parts or manufacturing processes in which all product or process properties are identical. But the developers always get the same simulation results if they enter the same pa-rameters.” This is where the researchers come in with their Computer Aided Robust Design. The goal is to develop new methods and software that makes it possible to factor the real deviations into the simulation calculations. In this way mechatronic systems, crash tests or laser processing methods can be made even less vulnerable to errors and variations.
One of the pillars of the new technology is the Taguchi method. The Japanese scientist Genichi Taguchi developed a method of making products, processes and systems resistant to interference. It is already applied in quality management, enabling the industry to achieve the optimum product quality. The task of CAROD is to improve quality by taking faults, variations and breakdowns into account during the virtual design phase.
“We are aiming to get as close to the natural manufacturing conditions as possible with our simulations,” says Dr. Tanja Clees, project manager at the Fraunhofer Institute for Algorithms and Scientific Computing SCAI in Sankt Augustin. Right now it is still early days for the new simulation software, but the experts are confident of achieving good results very soon. CAROD can be seen in Hall 17, Stand D60 at the Hannover Messe on April 21 through 25.
Monika Weiner | alfa
Measurement of components in 3D under water
01.04.2015 | Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Artificial hand able to respond sensitively thanks to muscles made from smart metal wires
24.03.2015 | Universität des Saarlandes
An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.
Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...
Hitzewellen in der Arktis, längere Vegetationsperioden in Europa, schwere Überschwemmungen in Westafrika – mit Hilfe des deutsch-französischen Satelliten MERLIN wollen Wissenschaftler ab 2021 die Emissionen des Treibhausgases Methan auf der Erde erforschen. Möglich macht das ein neues robustes Lasersystem des Fraunhofer-Instituts für Lasertechnologie ILT in Aachen, das eine bisher unerreichte Messgenauigkeit erzielt.
Methan entsteht unter anderem bei Fäulnisprozessen. Es ist 25-mal wirksamer als das klimaschädliche Kohlendioxid, kommt in der Erdatmosphäre aber lange nicht...
Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.
Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...
Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.
As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...
Die Europäische Weltraumagentur ESA gab heute grünes Licht für die industrielle Produktion von PLATO, der grössten europäischen wissenschaftlichen Mission zu Exoplaneten. Partner dieser Mission sind die Universitäten Bern und Genf.
Die Europäische Weltraumagentur ESA lanciert heute PLATO (PLAnetary Transits and Oscillation of stars), die grösste europäische wissenschaftliche Mission zur...
23.06.2017 | Veranstaltungen
22.06.2017 | Veranstaltungen
22.06.2017 | Veranstaltungen
23.06.2017 | Physik Astronomie
23.06.2017 | Ökologie Umwelt- Naturschutz
23.06.2017 | Materialwissenschaften