Bibliographic Details
| Title: |
On Magnetorheologic Elastomers for Vibration Isolation, Damping, and Stress Reduction in Mass-varying Structures. |
| Authors: |
Collette, Christophe1, Kroll, Gregory2, Saive, Gregory3, Guillemier, Vincent4, Avraam, More2 |
| Source: |
Journal of Intelligent Material Systems & Structures. 10/01/2010, Vol. 21 Issue 15, p1463-1469. 7p. |
| Subjects: |
Magnetorheological fluids, Elastomers, Vibration isolation, Mass (Physics), Strains & stresses (Mechanics), Deformations (Mechanics), Material fatigue |
| Abstract: |
This article considers two devices based on a magnetorheological elastomer (MRE): an MRE isolator under a frequency-varying harmonic excitation and a MRE Dynamic Vibration Absorber (DVA) mounted on a frequency-varying structure under a random excitation. In the first case, it is shown that the commandability of the elastomer improves the reduction of the RMS value of the body displacement by 10%. In the second case, it is shown on a simple example that a MRE DVA, while not optimal, can reduce the stress in the structure about 50% better than a classical DVA when the mass of the structure changes 35%. This makes them suitable to avoid high stress in mass-varying structures, and delay some damage mechanisms like the emergence of cracks and fatigue. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
