Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time

M. S. Seif, M. R. Tabeshpour, A. A. Golafshani, Masoud Hayatdavoodi

Research output: Contribution to conferencePaper

Abstract

Tension Leg Platform (TLP) is a well-known vertically moored structure for oil exploration. Because of inherent nonlinearities of the structure and environmental loads, the dynamic response analysis of the structure is very complicate and for the design process of a TLP, extensive spectra of responses and different structural and environmental conditions are necessary to be investigated. Minimizing of down time is an important problem in optimum using and functionality of offshore structures. This paper deals with the optimization of geometrical parameters of TLP regarding to minimize the down time period. Here the most effective parameter is the vertical acceleration. The regular wave loads on the elements of the pontoon are calculated using Airy wave theory and Morison equation, ignoring the diffraction and radiation effects. The nonlinear equation of motion is solved in time domain using modified Euler method (MEM). Finally by using Genetic Algorithm method, the optimized geometrical configuration for the TLP is determined. Numerical results show the effectiveness of obtained configuration of elements on minimizing down time.
Original languageEnglish
Publication statusPublished - 2005
Event1st International Conference on Design Engineering and Science (ICDES 2005) - Vienna, Austria
Duration: 28 Oct 200531 Oct 2005
http://www.jsde.or.jp/english/icdes2005/

Conference

Conference1st International Conference on Design Engineering and Science (ICDES 2005)
CountryAustria
CityVienna
Period28/10/0531/10/05
Internet address

Fingerprint

Tension-leg platforms
Genetic algorithms
Pontoons
Radiation effects
Offshore structures
Nonlinear equations
Equations of motion
Dynamic response
Diffraction

Keywords

  • Tension Leg Platform
  • Optimization
  • Down Time
  • Genetic Algorithm

Cite this

Seif, M. S., Tabeshpour, M. R., Golafshani, A. A., & Hayatdavoodi, M. (2005). Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time. Paper presented at 1st International Conference on Design Engineering and Science (ICDES 2005), Vienna, Austria.
Seif, M. S. ; Tabeshpour, M. R. ; Golafshani, A. A. ; Hayatdavoodi, Masoud. / Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time. Paper presented at 1st International Conference on Design Engineering and Science (ICDES 2005), Vienna, Austria.
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abstract = "Tension Leg Platform (TLP) is a well-known vertically moored structure for oil exploration. Because of inherent nonlinearities of the structure and environmental loads, the dynamic response analysis of the structure is very complicate and for the design process of a TLP, extensive spectra of responses and different structural and environmental conditions are necessary to be investigated. Minimizing of down time is an important problem in optimum using and functionality of offshore structures. This paper deals with the optimization of geometrical parameters of TLP regarding to minimize the down time period. Here the most effective parameter is the vertical acceleration. The regular wave loads on the elements of the pontoon are calculated using Airy wave theory and Morison equation, ignoring the diffraction and radiation effects. The nonlinear equation of motion is solved in time domain using modified Euler method (MEM). Finally by using Genetic Algorithm method, the optimized geometrical configuration for the TLP is determined. Numerical results show the effectiveness of obtained configuration of elements on minimizing down time.",
keywords = "Tension Leg Platform, Optimization, Down Time, Genetic Algorithm",
author = "Seif, {M. S.} and Tabeshpour, {M. R.} and Golafshani, {A. A.} and Masoud Hayatdavoodi",
year = "2005",
language = "English",
note = "1st International Conference on Design Engineering and Science (ICDES 2005) ; Conference date: 28-10-2005 Through 31-10-2005",
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Seif, MS, Tabeshpour, MR, Golafshani, AA & Hayatdavoodi, M 2005, 'Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time' Paper presented at 1st International Conference on Design Engineering and Science (ICDES 2005), Vienna, Austria, 28/10/05 - 31/10/05, .

Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time. / Seif, M. S.; Tabeshpour, M. R.; Golafshani, A. A.; Hayatdavoodi, Masoud.

2005. Paper presented at 1st International Conference on Design Engineering and Science (ICDES 2005), Vienna, Austria.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time

AU - Seif, M. S.

AU - Tabeshpour, M. R.

AU - Golafshani, A. A.

AU - Hayatdavoodi, Masoud

PY - 2005

Y1 - 2005

N2 - Tension Leg Platform (TLP) is a well-known vertically moored structure for oil exploration. Because of inherent nonlinearities of the structure and environmental loads, the dynamic response analysis of the structure is very complicate and for the design process of a TLP, extensive spectra of responses and different structural and environmental conditions are necessary to be investigated. Minimizing of down time is an important problem in optimum using and functionality of offshore structures. This paper deals with the optimization of geometrical parameters of TLP regarding to minimize the down time period. Here the most effective parameter is the vertical acceleration. The regular wave loads on the elements of the pontoon are calculated using Airy wave theory and Morison equation, ignoring the diffraction and radiation effects. The nonlinear equation of motion is solved in time domain using modified Euler method (MEM). Finally by using Genetic Algorithm method, the optimized geometrical configuration for the TLP is determined. Numerical results show the effectiveness of obtained configuration of elements on minimizing down time.

AB - Tension Leg Platform (TLP) is a well-known vertically moored structure for oil exploration. Because of inherent nonlinearities of the structure and environmental loads, the dynamic response analysis of the structure is very complicate and for the design process of a TLP, extensive spectra of responses and different structural and environmental conditions are necessary to be investigated. Minimizing of down time is an important problem in optimum using and functionality of offshore structures. This paper deals with the optimization of geometrical parameters of TLP regarding to minimize the down time period. Here the most effective parameter is the vertical acceleration. The regular wave loads on the elements of the pontoon are calculated using Airy wave theory and Morison equation, ignoring the diffraction and radiation effects. The nonlinear equation of motion is solved in time domain using modified Euler method (MEM). Finally by using Genetic Algorithm method, the optimized geometrical configuration for the TLP is determined. Numerical results show the effectiveness of obtained configuration of elements on minimizing down time.

KW - Tension Leg Platform

KW - Optimization

KW - Down Time

KW - Genetic Algorithm

M3 - Paper

ER -

Seif MS, Tabeshpour MR, Golafshani AA, Hayatdavoodi M. Geometrical Optimization of TLP Hull using Genetic Algorithm Method to Minimize Down Time. 2005. Paper presented at 1st International Conference on Design Engineering and Science (ICDES 2005), Vienna, Austria.