NEWS d S P A C E 3/2007 * dSPACE GmbH * Technologiepark 25 * D-33100 Paderborn * Germany * info@dspace.de * www.dspace.de CUSTOMERS CUSTOMERS Comfort Mode for Helicopters To reduce helicopter noise and vibrations, Eurocopter Germany has developed piezoelectrically controllable flaps for the rotor blades. The deflections of the flaps are controlled by dSPACE equipment, and reduce noise by almost 50% and vibrations by virtually 90%. Dieter Roth, in charge of testing at Eurocopter, spoke to dSPACE NEWS about his experience with dSPACE tools in developing this technology. Could you briefly explain what the piezoflap rotor is all about? Helicopters often develop a kind of chugging noise, which is caused by one rotor blade colliding with the trailing vortex of the rotor bla

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