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Development of variable stiffness seismic isolators and vibration mitigation dampers based on magnetically controlled elastomers

Objective

Passive isolation systems available, suffer from certain limitations, the most important of which is the impossibility of varying their intrinsic characteristics to meet the demands of actual input types that are difficult to predict. The resulting poor performance is a problem particularly for certain strategic facilities, such as emergency centres and hospitals. Additionally, there are structures (such as tanks) having a varying mass, and thus needing an isolation system with the variable stiffness.
The scope of the Project is to solve the above problems through the development of
1) an improved smart elastomer whose stiffness is controlled by means of a magnetic field;
2) semi-active seismic isolators able to maintain the specified degree of protection independently of the level of the seismic attack or changes in critical parameters;
3 ) variable stiffness dampers for mitigation of ground-borne vibrations.

Funding Scheme

CSC - Cost-sharing contracts
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Coordinator

MAURER SOEHNE GMBH & CO. KG
Address
Frankfurter Ring 193
80750 München
Germany

Participants (7)

CESI CENTRO ELETTROTECNICO SPERIMENTALE ITALIANO GIACINTO MOTTA SPA
Italy
Address
Via Rubattino 54
Milano
CONSTRUCCIONES BIKANI, S.L.
Spain
Address
Poligono Igeltzera 6 Y 7
48610 Urduliz (Vizcaya)
INSTITUTE FOR SOLID STATE AND MATERIALS RESEARCH DRESDEN
Germany
Address
20,Helmholtzstrasse 20
01069 Dresden
ITALIAN AGENCY FOR NEW TECHNOLOGY, ENERGY AND THE ENVIRONMENT
Italy
Address
Via Martiri Di Monte Sole 4
40129 Bologna
ROYAL INSTITUTE OF TECHNOLOGY
Sweden
Address
Teknikringen 56-58
100 44 Stockholm
TUN ABDUL RAZAK RESEARCH CENTRE LTD.
United Kingdom
Address
Brickendon Lane Brickendonbury
SG13 8NL Hertford
UNIVERSITY OF LJUBLJANA
Slovenia
Address
2,Jamova 2
1000 Ljubljana