Optimization of a chain of nonlinear resonators for vibration mitigation

Seyed Saeed Ahmadisoleymani, Samy Missoum

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chains of resonators in the form of spring-mass systems have long been known to exhibiting interesting properties such as band gaps. Such features can be leveraged to manipulate the propagation of waves such as the filtering of specific frequencies or, more generally, mitigate vibrations and impact. Adding nonlinearities to the system can also provide further avenues to manipulate the propagation of waves and enhance vibration mitigation. This work proposes to optimally design such a chain of nonlinear resonators to mitigate vibrations in a robust manner by accounting for various sources of uncertainties. The stochastic optimization algorithm explicitly accounts for the non-smoothness of the nonlinear response of the system due, for instance, to its amplitude-dependent behavior. In addition, the approach introduces a formulation based on a field representation of the design variables, thus making the optimization approach scalable.

Original languageEnglish (US)
Title of host publication2018 Multidisciplinary Analysis and Optimization Conference
Publisher[publishername] American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105500
DOIs
StatePublished - Jan 1 2018
Event19th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2018 - [state] GA, United States
Duration: Jun 25 2018Jun 29 2018

Other

Other19th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2018
CountryUnited States
City[state] GA
Period6/25/186/29/18

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Ahmadisoleymani, S. S., & Missoum, S. (2018). Optimization of a chain of nonlinear resonators for vibration mitigation. In 2018 Multidisciplinary Analysis and Optimization Conference [AIAA 2018-3105] [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-3105