Kong, K.K., Noroozi, S., Rahman, A.G.A., Dupac, M., Eng, H.C., Ong, Z.C., Khoo, S.Y. and Vinney, J., 2014. Non-destructive testing and assessment of dynamic incompatibility between third-party piping and drain valve systems: An industrial case study. Nondestructive Testing and Evaluation, 29 (2), 154 - 163.
Full text available as:
|
PDF
NDT-3rd party piping_JV.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. 978kB | |
Copyright to original material in this document is with the original owner(s). Access to this content through BURO is granted on condition that you use it only for research, scholarly or other non-commercial purposes. If you wish to use it for any other purposes, you must contact BU via BURO@bournemouth.ac.uk. Any third party copyright material in this document remains the property of its respective owner(s). BU grants no licence for further use of that third party material. |
DOI: 10.1080/10589759.2014.904313
Abstract
This paper presents the outcome of an industrial case study that involved condition monitoring of piping system that showed signs of excess fatigue due to flow-induced vibration. Due to operational requirements, a novel non-destructive assessment stratagem was adopted using different vibration analysis techniques - such as experimental modal analysis and operating deflection shapes - and complemented by visual inspection. Modal analysis carried out near a drain valve showed a dynamic weakness problem (several high-frequency flow-induced vibration frequency peaks), hence condition-based monitoring was used. This could easily be linked to design problem associated with the dynamic incompatibility due to dissimilar stiffness between two third-party supplied pipe and valve systems. It was concluded that this is the main cause for these problem types especially when systems are supplied by third parties, but assembled locally, a major cause of dynamic incompatibility. It is the local assembler's responsibility to develop skills and expertise needed to sustain the operation of these plants. This paper shows the technique used as result of one such initiative. Since high amplitude, low-frequency displacement can cause low cycle fatigue, attention must be paid to ensure flow remains as steady state as possible. The ability to assess the level of design incompatibility and the level of modification required using non-destructive testing is vital if these systems are to work continuously. © 2014 Taylor & Francis.
Item Type: | Article |
---|---|
ISSN: | 1058-9759 |
Uncontrolled Keywords: | modal analysis; non-destructive testing; ODS; pipe; stress; vibrations |
Group: | Faculty of Science & Technology |
ID Code: | 24940 |
Deposited By: | Symplectic RT2 |
Deposited On: | 14 Nov 2016 14:16 |
Last Modified: | 14 Mar 2022 14:00 |
Downloads
Downloads per month over past year
Repository Staff Only - |