Vibration and Modal Analysis of Liquefied Natural Gas Tanks
Abdel-Latif, L., Kandil, A., Abdel-Gwad, E., Asaad, A. (2013). Vibration and Modal Analysis of Liquefied Natural Gas Tanks. EKB Journal Management System, 17(1), 23-31. doi: 10.21608/pserj.2013.39807
Lotfie Abdel-Latif; Anwar Kandil; Ebtisam Abdel-Gwad; Ayman Asaad. "Vibration and Modal Analysis of Liquefied Natural Gas Tanks". EKB Journal Management System, 17, 1, 2013, 23-31. doi: 10.21608/pserj.2013.39807
Abdel-Latif, L., Kandil, A., Abdel-Gwad, E., Asaad, A. (2013). 'Vibration and Modal Analysis of Liquefied Natural Gas Tanks', EKB Journal Management System, 17(1), pp. 23-31. doi: 10.21608/pserj.2013.39807
Abdel-Latif, L., Kandil, A., Abdel-Gwad, E., Asaad, A. Vibration and Modal Analysis of Liquefied Natural Gas Tanks. EKB Journal Management System, 2013; 17(1): 23-31. doi: 10.21608/pserj.2013.39807

Vibration and Modal Analysis of Liquefied Natural Gas Tanks

Port-Said Engineering Research Journal
Article 5, Volume 17, Issue 1, March 2013, Page 23-31  XML PDF (1.17 MB)
Document Type: Original Article
DOI: 10.21608/pserj.2013.39807
View on SCiNiTO View on SCiNiTO
Authors
Lotfie Abdel-Latif1; Anwar Kandil2; Ebtisam Abdel-Gwad3; Ayman Asaad4
1Prof, Mechanical Design Dept., Faculty of Engineering, Matareia, Helwan University
2Prof, Production Eng. and Mech. Design Dept., Faculty of Engineering, Port Said University
3Assoc. Prof, Production Eng. and Mech. Design Dept., Faculty of Engineering, Port Said University
4Section Head of Canal CNG Stations, NGV Company (Car Gas), Egyptian Petroleum Ministry
Abstract
Liquefied natural gas (LNG) tanks are considered essential structures. Storage tanks in particular, are important to the continued operation of natural gas distribution systems in the event of earthquakes. The Finite Element (FE) method is utilized to model the tank, as well as the contained fluid. ANSYS 12, a finite element code that combines structural and fluid simulation capabilities, has been used to model the inner steel tank, LNG fluid, and outer concrete tank in the three-dimensional space and perform modal and nonlinear seismic analysis. The tank wall is modelled by shell elements. The LNG has been represented as contained fluid elements. In this paper, the analysis results for mode shapes and natural frequencies obtained by ANSYS 12 are compared with those calculated by theoretical calculations using the guidelines for seismic design of liquid storage tanks presented by Indian Institute of Technology -2007. The results obtained for the fundamental frequency and mode shapes gave basic knowledge and better understanding of LNG tanks in dynamic analysis.
Keywords
LNG tanks; Modal analysis; Finite element method; mode shapes; and Natural Frequency
Statistics
Article View: 228
PDF Download: 393