Journal of Advanced Marine Engineering and Technology

  • 제24권2호
  • /
  • Pages.8-16
  • /
  • 2000
  • /
  • 2234-7925(pISSN)
  • /
  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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유한요소법을 이용한 증기터빈용 최적 테이퍼 스터드 볼트에 관한 연구

Research on Optimal Taper Stud Bolts for Steam Turbines Using the FEM

  • 이부윤 (계명대학교 자동차공학부) ;
  • 김태완 (한국중공업(주) 기술연구원)
  • 발행 : 2000.03.01
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초록

The thread load distribution as applied to large stud bolts for steam turbines is investigated using the finite element method. The stress concentration in tapered threads is studied with varying prestress and taper angle. Based upon the thread load distribution, the optimal taper angles to reduce the stress concentration are determined for various prestresses. The presented finite element model is validated by comparing results of the calculated thread load with analytic ones. The optimal taper angles obtained from this research can be used in designing tapered threads of large stud bolts for steam turbines.

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참고문헌

  1. Proceedings of the Institute of Mechanical Engineers v.159 The Distribution of Load in Screw Threads Sopwith, D.G.
  2. Trans ASME v.74 The Effect of Taper on Screw Thread load Distribution Stoeckly, E.E.;Macke, H.J.
  3. Experimental Mechanics v.25 Load and Stress Distribution in Screw Threads Kenny, B.;Patterson, E.A.
  4. Proceedings of the Institute of Mechanical Engineers Finite Element Analysis of Thread End Closures of Thick Walled Vessels Pick, R.J.;Burns, D.J.
  5. J. of Pressure Vessel Technology v.114 Static Analysis of Buttress Threads Using the Finite Element Method Chaaban, A.;Jutras, M.
  6. ASME J. of Pressure Vessel Tech. v.114 Finite Element Simulation of Tightening Process of Bolted Joint With a Tensioner Fukuoka, T.
  7. ASME PVP v.305 Evaluation of the Method for Lowering Stress Concentration at the Thread Root with Modifications of Net Shape Fukuoka, T.
  8. ABAQUS, User's Guide Hibbitt, Karlson & Soreson