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Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory / Anthony E. Muoka

Swansea University Author: Muoka, Anthony E.

DOI (Published version): 10.23889/Suthesis.48136

Abstract

The study of dynamics of pipes conveying fluid has been the subject of research for many decades now, and various formulations, solution methodologies and applica-tions have been developed. The topic is well understood but research in this area is ongoing as the study of the subject is far from trivi...

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Published: 2018
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
Supervisor: Peric, Djordje. ; Dettmer, Wulf G.
URI: https://cronfa.swan.ac.uk/Record/cronfa48136
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last_indexed 2019-01-10T14:00:58Z
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spelling 2019-01-10T11:30:06Z v2 48136 2019-01-10 Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory Anthony E. Muoka Anthony E. Muoka true true bf28fee0542417fa9e6bd1d7d6acc9a7 3a0a8bccba1598917f09b8337b9e1c5b NRv8R4ZWZJ6xFLXyJf+nIBbHhpNGhK+ZEf+BVPcHSeI= 2019-01-10 EEN The study of dynamics of pipes conveying fluid has been the subject of research for many decades now, and various formulations, solution methodologies and applica-tions have been developed. The topic is well understood but research in this area is ongoing as the study of the subject is far from trivial. This is a classical model problem in the study of dynamics and stability of structures mainly because it is a physically simple system capable of displaying a wide array of interesting behaviour in both the linear and nonlinear regime. In this thesis, a geometrically exact fully implicit version of the 3D beam element, which employs the Rodrigues formula for the update of large rotations is used in the solution of the equations of motion. The nonlinear model for the flexible beam conveying fluid has been formulated and implemented to recover the interesting dynamic behaviour of the system in 3D. The advantage of this approach stems mainly from the fact that approach to engineer-ing problems depends upon the intended application, cost from a computational perspective, among other factors which may be taken into consideration, and this provides an alternative to existing approaches. Benchmark problems are presented in 2D and 3D, and confirm robustness and accuracy of the formulation. E-Thesis 0 0 2018 2018-01-01 10.23889/Suthesis.48136 A selection of third party content is redacted or is partially redacted from this thesis. College of Engineering Engineering CENG EEN Swansea University Peric, Djordje. ; Dettmer, Wulf G. Doctoral Ph.D 2019-01-11T08:36:10Z 2019-01-10T11:12:26Z College of Engineering Engineering Anthony E. Muoka 1 0048136-10012019113006.pdf Muoka_Anthony_E_ PhD_Thesis_ Final_Redacted.pdf 2019-01-10T11:30:06Z Output 5250310 application/pdf ETRVOA true Published to Cronfa 10/01/2019 2019-01-09T00:00:00 true
title Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
spellingShingle Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
Muoka, Anthony E.
title_short Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
title_full Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
title_fullStr Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
title_full_unstemmed Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
title_sort Dynamics of Three-Dimensional Pipes Conveying Fluid Using the Reissner Beam Theory
author_id_str_mv bf28fee0542417fa9e6bd1d7d6acc9a7
author_id_fullname_str_mv bf28fee0542417fa9e6bd1d7d6acc9a7_***_Muoka, Anthony E.
author Muoka, Anthony E.
author2 Anthony E. Muoka
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institution Swansea University
doi_str_mv 10.23889/Suthesis.48136
college_str College of Engineering
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hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description The study of dynamics of pipes conveying fluid has been the subject of research for many decades now, and various formulations, solution methodologies and applica-tions have been developed. The topic is well understood but research in this area is ongoing as the study of the subject is far from trivial. This is a classical model problem in the study of dynamics and stability of structures mainly because it is a physically simple system capable of displaying a wide array of interesting behaviour in both the linear and nonlinear regime. In this thesis, a geometrically exact fully implicit version of the 3D beam element, which employs the Rodrigues formula for the update of large rotations is used in the solution of the equations of motion. The nonlinear model for the flexible beam conveying fluid has been formulated and implemented to recover the interesting dynamic behaviour of the system in 3D. The advantage of this approach stems mainly from the fact that approach to engineer-ing problems depends upon the intended application, cost from a computational perspective, among other factors which may be taken into consideration, and this provides an alternative to existing approaches. Benchmark problems are presented in 2D and 3D, and confirm robustness and accuracy of the formulation.
published_date 2018-01-01T13:05:49Z
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score 10.801898