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Topological optimisation of friction dampers for nonlinear resonances mitigation

Abstract : Friction dampers are commonly used to reduce the vibration amplitude of aircraft turbine blades. However, the shape of such friction dampers can affect significantly damping characteristics and the overall nonlinear dynamic behaviour of the structure. The present work exploits topological optimization to identify damper geometries that minimize response amplitude. The (near-)maximum responses are efficiently computed by solving the harmonic balance equations and a phase quadrature condition. Moving Morphable Components (MMC) are used to describe the damper geometry and an Efficient Global Optimization (EGO) algorithm is used for the optimization.
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https://hal.inria.fr/hal-03165602
Contributor : Enora Denimal <>
Submitted on : Wednesday, March 10, 2021 - 5:43:15 PM
Last modification on : Thursday, March 18, 2021 - 1:57:44 PM

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  • HAL Id : hal-03165602, version 1

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Enora Denimal, Ludovic Renson, Loic Salles. Topological optimisation of friction dampers for nonlinear resonances mitigation. Nodycon 2021 - Second International Nonlinear Dynamics Conference, Feb 2021, Roma / Virtual, Italy. pp.1-12. ⟨hal-03165602⟩

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