ACTUATOR 2014 Manuscript B6.4

Author: Hubert Borgmann
Pages: 4
Language: English
Publication date: 09/04/2015
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Manuscript B6.4 published in Conference Proceedings ACTUATOR 2014
Piezo-Actuated Hydraulic Transducer for Active Noise Reduction

K. Lentner1, F. Hermle1, M. Christmann1, A. Waitschat2, F. Thielecke2, R.M. Behr3
1AIRBUS Group Innovations, München, Germany
2Technische Universität Hamburg-Harburg, Hamburg, Germany
3AIRBUS Group, Bremen, Germany

In modern aircraft hydraulic systems the hydraulic pressure is generated by axial piston pumps. Those pumps also induce unwanted fluid-borne noise (pressure ripple) and herewith structure-borne noise (vibrations). This paper introduces an electrically powered and frequency adaptable noise attenuation device. A piezo ceramic actuator was used as active component. Simulations were done using a numerical optimization process to maximize the output ripple (anti-phase to piston pump ripple). Besides, a prototype was tested in a dedicated fluidborne noise test bench.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (

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