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Conference Paper/Proceeding/Abstract 1421 views

Dynamics of an MDOF rotor stator contact system

Alexander Shaw Orcid Logo

IMAC XXXIV

Swansea University Author: Alexander Shaw Orcid Logo

Abstract

The vibrations of rotating machinery are an important issue in many engineered systems, from aircraft engines todrilling platforms. In many cases there is a possibility of rotor stator contact, which leads to non-smooth nonlinearities;this leads to complex multi period responses in a single rotor sy...

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Published in: IMAC XXXIV
Published: Orlando, Florida, USA SEM 2016
URI: https://cronfa.swan.ac.uk/Record/cronfa24901
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first_indexed 2015-11-28T01:57:57Z
last_indexed 2018-02-09T05:05:09Z
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spelling 2016-10-06T11:37:09.5239739 v2 24901 2015-11-27 Dynamics of an MDOF rotor stator contact system 10cb5f545bc146fba9a542a1d85f2dea 0000-0002-7521-827X Alexander Shaw Alexander Shaw true false 2015-11-27 AERO The vibrations of rotating machinery are an important issue in many engineered systems, from aircraft engines todrilling platforms. In many cases there is a possibility of rotor stator contact, which leads to non-smooth nonlinearities;this leads to complex multi period responses in a single rotor system, and poses a challenging problem whenmore degrees of freedom are considered. In this work we examine how interaction of the underlying modes of atwo disc rotor, can lead to complex multi-period responses with intermittent contact. These motions can be excitedat driving speeds that are well removed from the linear critical speeds of the rotor. However, it is demonstrated thatthe driving frequencies can be predicted and explained by synchronisation between two modal responses and thedriving frequency. Conference Paper/Proceeding/Abstract IMAC XXXIV SEM Orlando, Florida, USA Rotordynamics, Impact, Nonlinearity, Chaos, Whirl 25 1 2016 2016-01-25 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University 2016-10-06T11:37:09.5239739 2015-11-27T10:27:29.6764892 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Alexander Shaw 0000-0002-7521-827X 1
title Dynamics of an MDOF rotor stator contact system
spellingShingle Dynamics of an MDOF rotor stator contact system
Alexander Shaw
title_short Dynamics of an MDOF rotor stator contact system
title_full Dynamics of an MDOF rotor stator contact system
title_fullStr Dynamics of an MDOF rotor stator contact system
title_full_unstemmed Dynamics of an MDOF rotor stator contact system
title_sort Dynamics of an MDOF rotor stator contact system
author_id_str_mv 10cb5f545bc146fba9a542a1d85f2dea
author_id_fullname_str_mv 10cb5f545bc146fba9a542a1d85f2dea_***_Alexander Shaw
author Alexander Shaw
author2 Alexander Shaw
format Conference Paper/Proceeding/Abstract
container_title IMAC XXXIV
publishDate 2016
institution Swansea University
publisher SEM
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 The vibrations of rotating machinery are an important issue in many engineered systems, from aircraft engines todrilling platforms. In many cases there is a possibility of rotor stator contact, which leads to non-smooth nonlinearities;this leads to complex multi period responses in a single rotor system, and poses a challenging problem whenmore degrees of freedom are considered. In this work we examine how interaction of the underlying modes of atwo disc rotor, can lead to complex multi-period responses with intermittent contact. These motions can be excitedat driving speeds that are well removed from the linear critical speeds of the rotor. However, it is demonstrated thatthe driving frequencies can be predicted and explained by synchronisation between two modal responses and thedriving frequency.
published_date 2016-01-25T03:29:35Z
_version_ 1763751153103798272
score 11.037056

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