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Stochastic modelling and updating of a joint contact interface

H. Jalali, H. Haddad Khodaparast, H. Madinei, M.I. Friswell, Michael Friswell, Hamed Haddad Khodaparast Orcid Logo, Hadi Madinei Orcid Logo

Mechanical Systems and Signal Processing, Volume: 129, Pages: 645 - 658

Swansea University Authors: Michael Friswell, Hamed Haddad Khodaparast Orcid Logo, Hadi Madinei Orcid Logo

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DOI (Published version): 10.1016/j.ymssp.2019.04.003

Abstract

Dynamic properties of the contact interfaces in joints and mechanical connections have a great influence on the overall dynamic properties of assembled structures. Uncertainty and nonlinearity are two major effects of contact interfaces which introduce challenges in accurate modeling. Randomness in...

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Published in: Mechanical Systems and Signal Processing
ISSN: 0888-3270
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49935
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first_indexed 2019-04-09T13:04:50Z
last_indexed 2019-07-17T15:33:53Z
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spelling 2019-07-17T10:57:07.9766885 v2 49935 2019-04-08 Stochastic modelling and updating of a joint contact interface 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false f207b17edda9c4c3ea074cbb7555efc1 0000-0002-3721-4980 Hamed Haddad Khodaparast Hamed Haddad Khodaparast true false d9a10856ae9e6a71793eab2365cff8b6 0000-0002-3401-1467 Hadi Madinei Hadi Madinei true false 2019-04-08 FGSEN Dynamic properties of the contact interfaces in joints and mechanical connections have a great influence on the overall dynamic properties of assembled structures. Uncertainty and nonlinearity are two major effects of contact interfaces which introduce challenges in accurate modeling. Randomness in surface roughness quality, surface finish and contact preload are the main sources of variability in the contact interfaces. On the other side, slip and slap are two mechanisms responsible for nonlinear behavior of joints. Stochastic linear/nonlinear models need to be developed for such uncertain structures to be used in dynamic response analysis or system parameter identification. In this paper, variability in linear behavior of an assembled structure containing a bolted lap-joint is investigated by using experimental results. A stochastic model is then constructed for the structure by employing a stochastic generic joint model and the uncertainty in the joint model parameters is identified by using a Bayesian identification approach. Journal Article Mechanical Systems and Signal Processing 129 645 658 0888-3270 Structural joints, Stochastic modelling ,Preload, Surface roughness, Uncertainty 15 8 2019 2019-08-15 10.1016/j.ymssp.2019.04.003 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-07-17T10:57:07.9766885 2019-04-08T12:07:27.4679536 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised H. Jalali 1 H. Haddad Khodaparast 2 H. Madinei 3 M.I. Friswell 4 Michael Friswell 5 Hamed Haddad Khodaparast 0000-0002-3721-4980 6 Hadi Madinei 0000-0002-3401-1467 7 0049935-08042019120834.pdf jalali2019(2).pdf 2019-04-08T12:08:34.2670000 Output 2100817 application/pdf Accepted Manuscript true 2020-05-03T00:00:00.0000000 true eng
title Stochastic modelling and updating of a joint contact interface
spellingShingle Stochastic modelling and updating of a joint contact interface
Michael Friswell
Hamed Haddad Khodaparast
Hadi Madinei
title_short Stochastic modelling and updating of a joint contact interface
title_full Stochastic modelling and updating of a joint contact interface
title_fullStr Stochastic modelling and updating of a joint contact interface
title_full_unstemmed Stochastic modelling and updating of a joint contact interface
title_sort Stochastic modelling and updating of a joint contact interface
author_id_str_mv 5894777b8f9c6e64bde3568d68078d40
f207b17edda9c4c3ea074cbb7555efc1
d9a10856ae9e6a71793eab2365cff8b6
author_id_fullname_str_mv 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
f207b17edda9c4c3ea074cbb7555efc1_***_Hamed Haddad Khodaparast
d9a10856ae9e6a71793eab2365cff8b6_***_Hadi Madinei
author Michael Friswell
Hamed Haddad Khodaparast
Hadi Madinei
author2 H. Jalali
H. Haddad Khodaparast
H. Madinei
M.I. Friswell
Michael Friswell
Hamed Haddad Khodaparast
Hadi Madinei
format Journal article
container_title Mechanical Systems and Signal Processing
container_volume 129
container_start_page 645
publishDate 2019
institution Swansea University
issn 0888-3270
doi_str_mv 10.1016/j.ymssp.2019.04.003
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 Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Dynamic properties of the contact interfaces in joints and mechanical connections have a great influence on the overall dynamic properties of assembled structures. Uncertainty and nonlinearity are two major effects of contact interfaces which introduce challenges in accurate modeling. Randomness in surface roughness quality, surface finish and contact preload are the main sources of variability in the contact interfaces. On the other side, slip and slap are two mechanisms responsible for nonlinear behavior of joints. Stochastic linear/nonlinear models need to be developed for such uncertain structures to be used in dynamic response analysis or system parameter identification. In this paper, variability in linear behavior of an assembled structure containing a bolted lap-joint is investigated by using experimental results. A stochastic model is then constructed for the structure by employing a stochastic generic joint model and the uncertainty in the joint model parameters is identified by using a Bayesian identification approach.
published_date 2019-08-15T04:01:12Z
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score 11.037166

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