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메타모델을 이용한 압력방출밸브의 구조안전성 예측

Prediction of the Structural Safety of a Relief Valve Using Metamodel

  • Kim, Nam-Hee (Department of Mechanical Engineering, Dong-A University) ;
  • Lee, Kwon-Hee (Department of Mechanical Engineering, Dong-A University)
  • 투고 : 2015.08.17
  • 심사 : 2015.09.11
  • 발행 : 2015.09.30

초록

압력방출밸브는 높은 압력을 조절하여 안정성을 유지하는 기계적 요소로, 압력용기, 증발기, 파이프라인 등 사용되고 있다. 높은 압력이 발생되면 스프링의 탄성력을 사용하여 압력방출밸브의 출구로 유체를 흘려보냄으로써 압력을 낮추게 되고, 정상적인 압력으로 돌아오게 되면 압력방출밸브는 초기상태로 돌아가게 된다. 압력방출밸브는 순조롭게 작동되어지기 위하여 요구되는 구조적 안정성을 만족하도록 설계되어져야한다. 본 연구에서는 상업용 소프트웨어 ANSYS/WORKBENCH를 사용하여 압력방출밸브의 유동해석과 구조해석을 수행한 결과 구조적 문제를 발생시킨다는 것을 알 수 있었다. 따라서 구조적 안전성을 만족하는 설계를 수행하고, 설계변수에 따른 구조적 안전성을 예측해보고자 한다.

A relief valve is a mechanical element to keep safety by controlling high pressure. Usually, the high pressure is relieved by using the spring force and letting the fluid to flow from another way out of system. When its normal pressure is reached, the relief valve can return to initial state. The relief valve should be designed for smooth operation and should satisfy the structural safety requirement under operating condition. The commercial software ANSYS/WORKBENCH is utilized for flow and structural analysis. Very high pressure may cause structural problem due to severe stress. The study suggests the design satisfying the structural design requirement

키워드

참고문헌

  1. Smith, P., 2004, "Valve Selection Handbook," ELSEVIER, USA, pp. 1-45. DOI: http://dx.doi.org/10.1016/B978-075067717-2/50001-8
  2. Kim, C. S., No, H. S., Kim, G. T., Kim, J. H., Kim, J. S., 2004, "Experience for Development and Capacity Certification of Safety Relief Valves," Korean fluid machinery association, pp. 492-500. DOI: http://dx.doi.org/10.5293/KFMA.2005.8.3.016
  3. 2010.02.15, http://www.amenews.kr/atc/view.asp?P_Index=2534
  4. Kil, G. S., Koh. H. S., Kwon. O. S., Han. S. Y., 2013, "The Design and Test Trend of vent relief valve for Launch vehicle", www.kari.re.kr, Vol. 11, No. 2, pp. 136-143.
  5. Cho. N. K., Shin. D. S., Han. S. Y., Kim. Y. M.,2007, "Analysis of Pressure Relief Valve Considering Interaction between Valve Stem Motion and Flow", 2007 KSPE Spring Conference, pp. 121-127.
  6. Sacks, J., Welch, W.J., Mitchell, T.J. and Wynn, H.P., 1989, "Design and Analysis of Computer Experiments," Statistical Science, Vol. 4, No. 4, pp. 409-4.5. DOI: http://dx.doi.org/10.1214/ss/1177012413
  7. Lee, K.H., 2005, "Optimization of a Driver-Side Aribag Using Kriging Based Approximation Model", Journal of Mechanical Science and Technology, Vol. 19, No. 1, pp.116-126 https://doi.org/10.1007/BF02916110
  8. Guinta, A. and Watson, L, 1998, "A Comparison of Approximation Modeling Techniques: Polynomial Versus Interpolation Models", Proceedings of the 7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, St. Louis, MO, ALAA, Vol. 2, 2-4, pp. 392-550. DOI: http://dx.doi.org/10.2514/6.1998-4758
  9. Ryu, J.S., Kim, M.S., Cha, K.J., Lee, T.H., and Choi, D.H., 2002, "Kriging Interpolation Methods in Geostatistics and DACE MODEL", KSME International Journal, Vol. 16, No. 5, pp. 619-632. https://doi.org/10.1007/BF03184811
  10. Martin, J. and Simpson, T., 2002, "Use of Adaptive Metamodeling for Design Optimization" Proceedings of the 9th AIAA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, Atlanta, Georgia, AIAA, Sep.4-6, pp. 2167-2175. DOI: http://dx.doi.org/10.2514/6.2002-5631