Multidisciplinary Design Optimization of a Novel Sandwich Beam-Based Adaptive Tuned Vibration Absorber Featuring Magnetorheological Elastomer

The present study aims to investigate the dynamic performance and design optimization of a novel magnetorheological elastomer based adaptive tuned vibration absorber (MRE-ATVA). The proposed MRE-ATVA consists of a light-weight sandwich beam treated with an MRE core layer and two electromagnets insta...

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Bibliographic Details
Published in:Materials 2020-05, Vol.13 (10), p.2261
Main Authors: Asadi Khanouki, Mostafa, Sedaghati, Ramin, Hemmatian, Masoud
Format: Article
Language:English
Subjects:
Absorbers
Beams (structural)
Computer simulation
Configuration management
Design optimization
Elastomers
Electromagnets
Finite element method
Frequency ranges
Genetic algorithms
Magnetic fields
Magnetic flux
Magnetism
Multidisciplinary design optimization
Resonant frequencies
Sandwich structures
Vibration
Weight reduction
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Summary:The present study aims to investigate the dynamic performance and design optimization of a novel magnetorheological elastomer based adaptive tuned vibration absorber (MRE-ATVA). The proposed MRE-ATVA consists of a light-weight sandwich beam treated with an MRE core layer and two electromagnets installed at both free ends. Three different design configurations for electromagnets are proposed. The finite element (FE) model of the proposed MRE-ATVA and magnetic model of the electromagnets are developed and combined to evaluate the frequency range of the absorber under varying magnetic field intensity. The results of the developed model are validated in multiple stages with available analytical and simulation data. A multidisciplinary design optimization strategy has been formulated to maximize the frequency range of the proposed MRE-based ATVA while respecting constraints of weight, size, mechanical stress, and sandwich beam deflection. The optimal solution is obtained and compared for the three proposed ATVA configurations. The optimal ATVA with a U-shaped electromagnet shows more than 40% increase in the natural frequency while having a total mass of 596 g.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13102261