Browse > Article
http://dx.doi.org/10.5762/KAIS.2020.21.2.373

Stress Analysis of a Trunnion Ball Valve for Ball Weight Reduction  

Kim, Hyung-Woo (Offshore Plant Research Division, Korea Research Institute of Ships and Ocean Engineering)
Cho, Su-gil (Offshore Plant Research Division, Korea Research Institute of Ships and Ocean Engineering)
Park, Jane (AlphaEng)
Lee, Jaehwan (Naval Architecture and Ocean Engineering, Chungnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.2, 2020 , pp. 373-380 More about this Journal
Abstract
A valve product can be over-designed or too heavy. Finite element analysis was performed using ANSYS for two and three-dimensional ball valve models, and the ball weight was reduced by optimization within the allowable design criteria. The ball is structurally safe according to the computed stress values, which are within the material's admissible stress. The weight was reduced by about 22%, and the structural safety factor was 1.25. The structural safety of the seat insert and ring, which are used to prevent leakage, was confirmed through finite element analysis. It is shown that the two-dimensional analysis can result in similar values to the three-dimensional analysis for the axisymmetric structure. The redesign of the valve is not included in the results since such changes require a whole new design process, including all valve components.
Keywords
ASME; Trunnion Ball Valve; Finite Element Analysis; Optimization; Ball Weight Reduction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 I. H. Han, J. S. Yu, S. M. Lee, U. J. Kim, H. P. Jeon, J. C. Lee, "Flow Visualization in a PFA Lined Ball Valve Using CFD Analysis", Proceeding of The Korean Society of Mechanical Engineers, pp.236-238, 2013.
2 H. P. Jeon, I. H. Han, J. C. Hwang, J. C. Lee, "Numerical Study on the Flow Characteristics according to the Opening Degree Control of a PFA Lined Ball Valve", Proceeding of the Korean Society of Mechanical Engineers, pp.4036-4039, 2013.
3 S. H. Ha, D. W. Lee, A. W. Zia, J. I. Song, "Evaluation of Structural Characteristic Analysis on Industrial Ball Valve", The Korean Society of Mechanical Engineers, 311-314, 2013.
4 I. Shin, J. Cha, D. Kim, S. Oh, "Study of Standard and Test Certification for Offshore Equipment.", Proceeding of the Korean Society of Mechanical Engineers, pp. 2374-2379, 2013.
5 S. H. Ha, S. J. Kim, J. I. Song, "Structure Analysis and Torque Reduction Design of Industrial Ball Valve", Journal of the Korean Society of Manufacturing Process Engineers, 13(6), 37-45, ISSN1598-6721, 2014. DOI: https://doi.org/10.14775/ksmpe   DOI
6 M. Kamkar, S. R. Basavaraddi, "Conceptual Design and Analysis of High Pressure Ball Valve", International Research Journal of Engineering and Technology (IRJET), 2(3), pp.1185-1189, p-ISSN: 2395-0072, 2015.
7 J. H. Lee, Y. J. Kim, B. C. Min, "The earthquake safety assessment of 1000 kVA cast resin transformer by finite element analysis with mesh convergence and seismic test on the large shaking table under Korean and IEEE seismic standards", J. of Electrical Engineering & Technology, 14(3), 2019. DOI: https://doi.org/10.1007/s42835-019-00125-w
8 J. H. Lee, J, Kim, "Optimization of the passenger safety door (PSD) part using response surface method", J. of the Computational Structural Engineering Institute of Korea, 22(1), 73-79, 2009. DOI: https://doi.org/10.7734/COSEIK
9 ANSYS Release 16.0 Documentation, Theory Reference: ANSYS Inc. Canonsburg, PA, USA, 2015.
10 ASME B16.34, Valves-Flanged, Threaded, and Welding End, The American Society of Mechanical Engineers, New York, USA, 2004
11 D. S. Kim, M. S. Kim, "Analysis of Cryogenic Ball Valve", Proceedings of the JFPS International Symposium on Fluid Power, 7(2), pp.397-402, 2008.
12 S. M. Lee, C. M. Jang, "Flow Analysis inside the Ball Valve using Numerical Analysis and Performance Test Device", The Society Of Air-Conditioning And Refrigerating Engineers Of Korea, pp.940-943, 2015.
13 J. U. Cho, M. S. Han, "A Study on Flow Analysis at Ball Valve according to Opening and Shutting Angle", Journal of The Korean Society of Manufacturing Process Engineers, 10(2), pp.46-51, 2011. DOI: https://doi.org/10.14775/ksmpe
14 X. G. Song, W. Lin, Y. C. Park, "Analysis and Optimization of Nitrile Butadiene Rubber Sealing Mechanism of Ball Valve", Trans. Nonferrous, Metals Society, China, 19, 220-224, 2009.