Analysis of High Pressure Gas Cylinder Preload of Screw Connection

Abstract:

High pressure gas cylinder thread joint is the weak link in high pressure gas cylinders, The cylinders in use and the operating process, the main causes of cylinder screw thread failure is the improper preload. In this paper, cylindrical high-pressure cylinders threaded,connection for example,according to the bottleneck and the bottlevalve for high pressure gas cylinder structure, material and mechanical characteristics, establishing 3D solid model of the high-pressure cylinders connected by using the finite element software ANSYS, 3D model is applied to high pressure cylinders, thread connection analysis.

• Periodical: Applied Mechanics and Materials (Volume 757)
• Pages: 33-37
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.757.33
• Online since: April 2015
• Authors: Hai Xia Du, Ying Juan Yue, Fang Xie, Fei Chen
• Keywords: Contact Stress, Equivalent Stress, Pre-Tightening Force, Seal, Thread

References

[1] GB5099-94, Steel Seamless cylinders, The bureau technical supervision of the people's republic of china, pp.1-2, p.1994.

[2] R. Chen, Analysis of surface cracks on gas cylinder of 34CrMo4 steel, Physics Examination and Testing, 31(2), pp.53-55, (2010).

[3] H. Okamoto, Fe-Nb (iron-niobium) , J. Phase Equilib, 14 ( 1993) 650-652.

DOI: 10.1007/bf02669162

[4] LIU hongwen , White. Mechanics of Materials. [M] third ed, Reference to a chapter in an edited book.

[5] E. Rudy, Compendium of Phase Diagram Data, Air Force Materials Laboratory, Part V, 1969, p.110.

[6] Zhigang He. Analysis of bus body frame structure [D]. Jiangsu science and Technology University Master thesis. (2001).