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Experimental Study on Vortex-Induced Vibration of Risers Considering the Effects of Different Design Parameters
- Source :
- Applied Sciences, Vol 8, Iss 12, p 2411 (2018), Applied Sciences, Volume 8, Issue 12
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- Risers are an indispensable component of offshore oil and gas exploitation structures, and they are vulnerable to vortex-induced vibration (VIV). Although many studies have been conducted to investigate the VIV characteristics of risers, the effects of combination of multiple parameters and the relative significance of each parameter on the risers&rsquo<br />VIV characteristics have rarely been considered. In this paper, 36 experimental cases were investigated to study the risers&rsquo<br />VIV characteristics due to the combination of multiple parameters. The natural frequencies, response microstrains and frequencies of VIV for the risers were obtained. Meanwhile, the effect of each parameter and the relative significance of these parameters on the amplitude of VIV in risers were calculated using grey relational analysis (GRA). The results show that all the parameters considered&mdash<br />i.e., material property (modulus and density), end condition, top tension force and flow velocity&mdash<br />affect risers&rsquo<br />VIV response, and the grey relational grade of these parameters are: r 02 ( velocity ) &gt<br />r 04 ( constraints ) &gt<br />r 05 ( density ) &gt<br />r 03 ( tension ) &gt<br />r 01 ( modulus ) .
- Subjects :
- riser
Flow (psychology)
Modulus
020101 civil engineering
02 engineering and technology
lcsh:Technology
01 natural sciences
Grey relational analysis
010305 fluids & plasmas
0201 civil engineering
Relative significance
lcsh:Chemistry
experiment with multiple parameters
0103 physical sciences
General Materials Science
lcsh:QH301-705.5
Instrumentation
Fluid Flow and Transfer Processes
Physics
lcsh:T
business.industry
Tension (physics)
Process Chemistry and Technology
General Engineering
Structural engineering
lcsh:QC1-999
Computer Science Applications
Vibration
Amplitude
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
Vortex-induced vibration
grey relational analysis
vortex-induced vibration (VIV)
lcsh:Engineering (General). Civil engineering (General)
business
lcsh:Physics
Subjects
Details
- ISSN :
- 20763417
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....77ac3f1ca4150a85f77d06a79b153564