Advanced dynamic modelling of adaptive multifunctional materials and structures


CALL: 2008

DOMAIN: MS - Materials, Physics and Engineering


LAST NAME: Belouettar





START: 2009-02-01

END: 2012-01-31


Submitted Abstract

The notion of suppressing structural vibrations is of paramount importance for enhancing safety and improving system performance. Undesirable large-amplitude vibrations and radiated noise often impedethe effective operation of various types of dynamic civilian and military systems. It is prudent to introduce structural damping into a dynamic system to achieve a more satisfactory response. A way to achieve this, along with an improved knowledge of their vibration behaviour and response, is to provide an efficient method for controlling the structural dynamics during service. As a matter of fact, the use of these structures requires a profound knowledge of the vibration analysis and control techniques and strategies. The overall objective of this MATERA ERA-Net collaborative project is the development of a vibration control technology to enable higher performance and lightweight structural systems.Vibration control technology involves reducing detrimental vibration in structures and systems by active and/or passive procedures. The challenge of ADYMA is to define advanced models andtechniques permitting to model, simulate and validate the new developments for a more efficient vibration control. More specifically, this project proposes to develop an advanced multi-physics(thermo-electromechanical) modelling of multifunctional multilayered (elastic, viscoelastic, piezoelectric) composite structures, to improve the characterisation of electro-mechanical properties of materials and structures (including direct and inverse identification techniques), to control vibrations and to get optimum design of the structure or a part of it. Besides its scientific aims, this project also has the ambition to contribute directly to specific industrial applications since the final research action will be devoted to a full scale validation of the obtained numerical results.This project will result in the development of new technology that has a broad range of applications. As described above, the new technology is a noise and vibration control system. This will be useful in abroad range of applications that include: acoustic noise control, active vibration control, improved reliability/safety of systems and structures. Furthermore, the development of effective and economicalstructural damping approaches that can suitably adjust mechanical properties to appropriate specifications could be beneficial in designing future systems.

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