JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Development of Equations for Static Design Loads of Sphere Type LNG Tank with Cylindrical Extension
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Development of Equations for Static Design Loads of Sphere Type LNG Tank with Cylindrical Extension
Shin, Sang-Hoon; Ko, Dae-Eun;
  PDF(new window)
 Abstract
The number of shop needed for the fabrication of sphere type LNG tank is proportional to that of the tank radius to be constructed. Due to limitation of facility investment including building sites, it is practically difficult to fabricate various size tanks of perfectly spherical shape in the yards. The efficient method to increase cargo tank capacity is to extend vertically the conventional sphere type LNG tank by inserting a cylindrical shell structure. In this study, equations for static design loads are developed for sphere type LNG tank with central extension. The results of this study will be combined with dynamic design loads to build the simplified analysis method which enable the precise initial estimate instead of time consuming finite element analysis.
 Keywords
Sphere type LNG tank;Cylindrical extension;Static design load;Simplified analysis method;Initial estimate;
 Language
Korean
 Cited by
 References
1.
J. W. Kim, "A LNG Pressure Vessel Design", Journal of the Korean Welding Society, 18(4), pp.28-37, 2000.

2.
I. S. Nho, Y. Y. Nam and H. S. Lee, "Structural Safety Assessment of Independent Spherical LNG Tank (1st Report) - Fatigue Strength Analysis Based on the S-N Approach", Journal of the Society of Naval Architects of Korea, 30(2), pp.132-140, 1993.

3.
I. S. Nho, Y. Y. Nam and H. S. Lee, "Structural Safety Assessment of Independent Spherical LNG Tank (2nd report) - Fatigue Crack Propagation Analysis Based on the LBF Theory", Journal of the Society of Naval Architects of Korea, 30(4), pp.74-82, 1993.

4.
Y. M. Kim, S. C. Ko, B. I. Chun and K. K. Kim, "A Study on the Thermal Design of the Cryogenic LNG Carrier", Journal of the Korean Society of Marine Engineers, 17(4), pp.1-10. 1993.

5.
Y. Y. Nam, I. S. Nho and H. S. Lee, "Structural Safety Assessment of Independent Spherical LNG Tank (3rd report) - Safety assessment of tank system against cryogenic temperature", Journal of the Society of Naval Architects of Korea, 30(4), pp.83-92, 1993.

6.
S. D. Lee, S. O. Song, J. W. Lee, C. S. Kim and D. Y. Choi, "A Study on the Thermal Characteristics of MOSS Type LNG Carrier", Journal of the Korean Society of Marine Engineers, 22(1), pp.28-34, 1998.

7.
B. J. Noh, "Sloshing Load Analysis in Spherical Tank of LNG Carrier", Special Issue of the Society of Naval Architects of Korea, June, pp.22-30, 2005.

8.
S. H. Shin, "A Study on Simplified Analysis for the Initial Tank Design of Spherical Type LNG Carriers", Journal of the Society of Naval Architects of Korea, 52(2), pp.125 -134, 2015. DOI: http://dx.doi.org/10.3744/SNAK.2015.52.2.125 crossref(new window)

9.
S. Timoshenko and S. Woinowsky-Krieger, Theory of Plates and Shells, 2 ed. McGRAW-HILL: New York, 1959.