Parallel harmonic balance method for analysis of nonlinear dynamical systems

J. Blahoš, A. Vizzaccaro, L. Salles, F. El Haddad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

Controlling vibration in jet engine remains one of the biggest challenges in aircraft engine design and conception. Methods dealing with vibration modelling usually rely on reduced order modelling techniques. This paper aims to provide a high fidelity method to solve vibration problems. It presents a parallel harmonic balance method applied to a full size problem. In order to be computationally efficient, a parallel harmonic balance method is used for the first time in solid mechanics. First, the parallel implementation of harmonic balance method is described in detail. The algorithm is designed to minimize communication between cores. Then, the software is tested for both beam and blade geometries. Finally, a scalability study shows promising acceleration when increasing the number of cores.

Original languageEnglish
Title of host publicationStructures and Dynamics
Subtitle of host publicationStructural Mechanics, Vibration, and Damping; Supercritical CO2
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791884232
DOIs
Publication statusPublished - 2020
Externally publishedYes
EventASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, GT 2020 - Virtual, Online
Duration: 21 Sep 202025 Sep 2020

Publication series

NameProceedings of the ASME Turbo Expo
Volume11

Conference

ConferenceASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, GT 2020
CityVirtual, Online
Period21/09/2025/09/20

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