Modeling of arrays of passive granular dampers

Salueña C, Esipov SE, Rosenkranz D, Panossian HV (1999)

Publication Type: Conference contribution

Publication year: 1999

Journal

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers (SPIE)

Book Volume: 3672

Conference Proceedings Title: 1999 SYMPOSIUM ON SMART STRUCTURES AND MATERIALS

Event location: Newport Beach US

DOI: 10.1117/12.349800

Abstract

Simulation models in space industry may allocate a few mesh points for such fine details as granular dampers embedded in mechanical parts. As a result, collective dynamics of grains inside dampers cannot be adequately resolved. A hierarchical approach to modeling and design has been explored by practitioners to study this phenomenon. Available models fail to explain the observed spectral response. This article is an attempt to examine models where dampers are replaced by calibrated linear and non-linear visco-elastic units with stochastic forcing. Namely, the parameterization of a non- linear visco-elastic unit is described. Non-linearity facilitates mode-mixing and shifts of major resonances, while stochastic forcing contributes to the overall risk assessment. Limitations of the proposed reductions of granular hydrodynamics are discussed.

Involved external institutions

Universitat de Barcelona (UB) / University of Barcelona ES Spain (ES) Boeing US United States (USA) (US) Humboldt-Universität zu Berlin DE Germany (DE)

How to cite

APA:

Salueña, C., Esipov, S.E., Rosenkranz, D., & Panossian, H.V. (1999). Modeling of arrays of passive granular dampers. In T. Tupper Hyde (Eds.), 1999 SYMPOSIUM ON SMART STRUCTURES AND MATERIALS. Newport Beach, US.

MLA:

Salueña, Clara, et al. "Modeling of arrays of passive granular dampers." Proceedings of the 1999 SYMPOSIUM ON SMART STRUCTURES AND MATERIALS, Newport Beach Ed. T. Tupper Hyde, 1999.

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