'Anti-noise' Silences Wind Turbines (IMAGE) Fraunhofer-Gesellschaft Caption The round vibration exciter (left), suspended from a crane, induces vibrations in the rectangular iron platform that are similar to those of a wind energy converter. The active damper -- located at the center of the platform -- reduces these vibrations. Credit Fraunhofer IWU Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.