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Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves

Matt Bonney Orcid Logo, M. Zabiego

ISMA2018 - International Conference on Noise and Vibration Engineering

Swansea University Author: Matt Bonney Orcid Logo

Abstract

This paper is a comparison of analytical and numerical evaluations for a model system, which consists of a vertically suspended beam-like structure, guided by a pair of sleeves subjected to static or dynamic transverse displacements. The goal of these analyses is to evaluate and describe the mechani...

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Published in: ISMA2018 - International Conference on Noise and Vibration Engineering
ISBN: 9789073802995
Published: Louvain, Belgium 2018
URI: https://cronfa.swan.ac.uk/Record/cronfa65042
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spelling v2 65042 2023-11-21 Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves 323110cf11dcec3e8183228a4b33e06d 0000-0002-1499-0848 Matt Bonney Matt Bonney true false 2023-11-21 AERO This paper is a comparison of analytical and numerical evaluations for a model system, which consists of a vertically suspended beam-like structure, guided by a pair of sleeves subjected to static or dynamic transverse displacements. The goal of these analyses is to evaluate and describe the mechanical behavior of such system during situations involving significant misalignment of the guiding sleeves, primarily caused by horizontal seismic vibrations. The analytical evaluation of the beam is performed using a solver in the novel tool PIRAT that incorporates the Bresse method to determine deflection shape and stress of the beam, where the numerical calibration uses a finite element solver called Cast3M. Both of these methods also investigate the evolving contact between the beam and its guiding sleeves (including a rigid lower sleeve and a semi-rigid upper sleeve) by an iterative algorithm to add additional contact zones / pressures to more realistically replicate the natural system. Illustrative computations are performed in order to verify that both methods are able to produce the same results / trends using a static deformation profile for the guiding sleeves. With the static models sufficiently validated and calibrated, the preliminary dynamic response of the system is presented. These are produced by replacing the static Bresse method with the dynamic EulerBernoulli equation of motion in the analytical framework. This is also compared to the dynamic capabilities of Cast3M, which relies on modal analysis, for validation. The work in this paper signifies the next step in developing a set of tools for considering dynamic responses to ensure the proper behavior of such systems during seismic activities through the use of analytical evaluations. Conference Paper/Proceeding/Abstract ISMA2018 - International Conference on Noise and Vibration Engineering Louvain, Belgium 9789073802995 Model Validation, Structural Dynamics, Seismic, Fast Reactor, Control Rod, ASTRID, RBC 1 9 2018 2018-09-01 https://hal.science/cea-02400206/ COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University 2024-03-11T10:40:21.7926184 2023-11-21T09:35:00.4969557 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Matt Bonney 0000-0002-1499-0848 1 M. Zabiego 2
title Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
spellingShingle Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
Matt Bonney
title_short Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
title_full Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
title_fullStr Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
title_full_unstemmed Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
title_sort Validation of pirat, a novel tool for beam-like structures subject to seismic induced misalignment of guiding sleeves
author_id_str_mv 323110cf11dcec3e8183228a4b33e06d
author_id_fullname_str_mv 323110cf11dcec3e8183228a4b33e06d_***_Matt Bonney
author Matt Bonney
author2 Matt Bonney
M. Zabiego
format Conference Paper/Proceeding/Abstract
container_title ISMA2018 - International Conference on Noise and Vibration Engineering
publishDate 2018
institution Swansea University
isbn 9789073802995
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering
document_store_str 0
active_str 0
description This paper is a comparison of analytical and numerical evaluations for a model system, which consists of a vertically suspended beam-like structure, guided by a pair of sleeves subjected to static or dynamic transverse displacements. The goal of these analyses is to evaluate and describe the mechanical behavior of such system during situations involving significant misalignment of the guiding sleeves, primarily caused by horizontal seismic vibrations. The analytical evaluation of the beam is performed using a solver in the novel tool PIRAT that incorporates the Bresse method to determine deflection shape and stress of the beam, where the numerical calibration uses a finite element solver called Cast3M. Both of these methods also investigate the evolving contact between the beam and its guiding sleeves (including a rigid lower sleeve and a semi-rigid upper sleeve) by an iterative algorithm to add additional contact zones / pressures to more realistically replicate the natural system. Illustrative computations are performed in order to verify that both methods are able to produce the same results / trends using a static deformation profile for the guiding sleeves. With the static models sufficiently validated and calibrated, the preliminary dynamic response of the system is presented. These are produced by replacing the static Bresse method with the dynamic EulerBernoulli equation of motion in the analytical framework. This is also compared to the dynamic capabilities of Cast3M, which relies on modal analysis, for validation. The work in this paper signifies the next step in developing a set of tools for considering dynamic responses to ensure the proper behavior of such systems during seismic activities through the use of analytical evaluations.
published_date 2018-09-01T10:40:19Z
_version_ 1793226042100416512
score 11.016235

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