Obviously, a simulation tool of this kind will only be of use to manufacturers if it truly reflects the real-life situation. To test whether the virtual drop test produces the same results as the actual test, the engineers investigated the dynamic processes that take place inside an iron when it falls off the ironing board. Their study proved that cracks appeared in the same place in both the real and the simulated drop tests - namely between the back cover and the tank. The simulation also illustrated the exact path of the damage: First of all, one of the retaining pins on the cover snaps. The cover shifts out of place, causing heavy forces to act on the screw joints. This, in turn, leads to cracks in the wall of the tank. Thanks to the results of the simulation, the engineers were able to redesign the cover. "A minor change to the shape of the cover alters the distribution of forces so that there is no more risk of water escaping from the tank," explains Andrй Heinrietz. These "computer-aided" methods enabled the scientists to avoid modifications to the highly complex die-casting mold and thus to save costs. "The simulation tool enables us to reconcile the design and function of steam irons with their operational safety."
About the FRAUNHOFER-GESELLSCHAFT
The Fraunhofer-Gesellschaft is the leading organization for institutes of applied research in Europe, undertaking contract research on behalf of industry, the service sector and the government. Commissioned by customers in industry, it provides rapid, economical and immediately applicable solutions to technical and organizational problems. Within the framework of the European Union's technology programs, the Fraunhofer-Gesellschaft is actively involved in industrial consortiums which seek technical solutions to improve the competitiveness of European industry.
FRAUNHOFER-GESELLSCHAFT
HansastraЯe 27C
80686 Muenchen
fraunhofer.de
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