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Dynamics of an electromechanical damping device with magnetic coupling

✍ Scribed by René Yamapi

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
355 KB
Volume
11
Category
Article
ISSN
1007-5704

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✦ Synopsis

In this paper, we analyze the dynamics of an electromechanical damping device, which consist of an electrical system coupled magnetically to a mechanical structure, and that works by transferring the vibration energy of the mechanical system to the electrical system. We study the instability issues which limit the performance of the device. An analysis of the effective range of the coupling parameter for which a good reduction of the amplitude of the mechanical system occurs is presented. The effects of the coupling parameter on the bifurcation structures are found and it appears that with the appropriate choosing coupling parameter, the quenching of mechanical chaotic vibrations takes place.

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Vibrations of an elastic structure with
Vibrations of an elastic structure with shunted piezoelectric patches: efficient finite element formulation and electromechanical coupling coefficients
✍ O. Thomas; J.-F. Deü; J. Ducarne 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 552 KB

## Abstract This article is devoted to the numerical simulation of the vibrations of an elastic mechanical structure equipped with several piezoelectric patches, with applications for the control, sensing and reduction of vibrations. At first, a finite element formulation of the coupled electromech