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Intelligent Materials for Active Noice Reduction

Project Manager: Arthur Berkhoff
Faculty of Electrical Engineering, Mathematics and Computer Science - EEMCS
Tel.: +31 53 489 4672
Email: a.p.berkhoff@utwente.nl

Project Summary

Many intelligent materials systems such as fibre composites with embedded piezo-ceramics are derived, characterised and applied in smart structures on a laboratory scale without penetrating the existing design rules for engineered structures or being applied in mass products. Intelligent material systems have still a insufficient performance, requires a unacceptable electronic periphery, a lack of data on their reliability and cannot be included in the standard design and manufacturing process. The objective of the proposed Integrated Project "Intelligent Materials for Active Noise Reduction (InMAR)" is therefore the realization of intelligent, high performing adaptive material systems with integrated electronics able to be applied for noise mitigation purposes, even in highly loaded structures as construction material in the same manner as common passive or light weight materials are used. Aside from the pure development of the material systems itself this research also includes their characterization, simulation tools for the design process, handling and manufacturing techniques as well as their reliability. The newly designed intelligent material systems are applied to active noise reduction concepts based on Active Structural Acoustic Control (ASAC) or Active Noise Control (ANC) for Sound Quality Design. Out of manifold applications, noise problems in land-based traffic and related infrastructure such as buildings, bridges and tunnels are chosen for demonstration. It is expected that for automotives, trains and in civil engineering reduced noise radiation, emission and imission will become even more a design aspect which cannot achieved by conventional materials and concepts. According to these objectives, InMAR is structured in three technology areas dealing with intelligent materials systems, their integration and simulation and life-cycle aspects and in three applications scenarios for application and integration in automotives, trains and infrastructure.

INMAR publications

Project duration: 2004-2009
Project budget:
Number of person/years:
Project Coordinator: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
Participants: Fraunhofer, AVL LIST GmbH, Dynamics, Structures & Systems lnternational, LMS lnternational N.V., Micromega Dynamics SA, EMPA (Swiss Federal Laboratories for Materials Testing and Research), Rieter Automotive Management AG, Schindler Elevator Ltd, Deutsches Zentrum für Luft- und Raumfahrt e.V., Dornier GmbH, ERAS - Entwicklung und Realisation adaptiver Systeme – GmbH, FEV Motorentechnik GmbH, Ford-Werke AG, IGAM Ingenieurgesellschaft für angewandte Mechanik mbH, Siemens AG -Transportation Systems, Smart Material GmbH, Volkswagen AG, INASMET, Conservatoire National des Arts et Métiers, Renault Recherche Innovation, Saint Gobain Glass France, TechnoFirst, "Institute of Mechanics of Materials and Geostructures" S.A., Panphonics Oy, VTT Technical Research Centre of Finland, C.R.F. Società Consortile per Azoni, Centro Italiano Ricerca Aerospaziale S.C.p.A., Luchinni Sidermeccanica SpA, TNO, Bombardier, Volvo, Universities of Leuven, Brussels, Darmstadt, Delft, Twente, Southampton, Federal Armed Forces Hamburg, Budapest University of Technology and Economics, Politecnico di Milano, KTH Stockholm
Project budget CTIT: 679 k-€ / 351.2 k-€ funding
Number of person/years CTIT:  
Involved groups: Signals and Systems (S&S)