Development and Application of A High-Fidelity Numerical Tool for Dynamic Analysis of Bladed Disc Systems with Underplatform Dampers in Aircraft Engine Turbines

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

Abstract

This study presents VIBRANT: VIbration BehaviouR ANalysis Tool, a numerical tool developed for analysing the dynamic behaviour of complicated mechanical systems. The tool uses Python and Abaqus, employing time-marching algorithms to perform individual time domain simulations under harmonic excitation of certain frequencies until a steady state is reached to predict frequency domain behaviour. Hence, each monoharmonic excitation can be erformed independently; the tool can parallelise the computations to shorten the computational time. This software enables the handling of various systems modelled by Abaqus, adeptly ddressing numerous nonlinearities and conditions, expanding the capabilities of the software significantly. Properties of interest are measured for each frequency step of the simulation set. To validate and illustrate the capabilities of VIBRANT, two examples are presented. The first example is a beam with dry friction contact elements attached, and the second is a bladed disc system with underplatform dampers in aircraft engine turbines. Parametric studies evaluate the influence of the variation of parameters, such as excitation amplitudes and coefficient of friction, on the system’s dynamics. This research extends the scope of computational modelling in mechanical and aerospace engineering and provides a foundational tool that can be implemented to validate future aircraft engine designs.
Original languageEnglish
Title of host publicationProceedings of ASME Turbo Expo 2024
PublisherAmerican Society of Mechanical Engineers (ASME)
Publication statusAccepted/In press - 7 May 2024
EventTurbo Expo 2024: Turbomachinery Technical Conference & Exposition - London, United Kingdom
Duration: 24 Jun 202428 Jun 2024
https://event.asme.org/Turbo-Expo-2024

Publication series

NameTransactions of ASME
PublisherASME

Conference

ConferenceTurbo Expo 2024
Country/TerritoryUnited Kingdom
CityLondon
Period24/06/2428/06/24
Internet address

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