한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제17권6호
  • /
  • Pages.75-82
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  • 2018
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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근사모델을 이용한 의 구조최적설계

Structural Optimization of an LMU Using Approximate Model

  • 한동섭 ((주)레미타이트 기업부설연구소) ;
  • 장시환 (동아대학교 기계공학과) ;
  • 박순형 ((주)센트랄 중앙연구소) ;
  • 이권희 (동아대학교 기계공학과)
  • 투고 : 2018.08.23
  • 심사 : 2018.08.30
  • 발행 : 2018.12.31
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초록

This study suggests an optimal design process of an LMU, which is installed on the top side of offshore structures. The LMU is consist of EB(elastomeric bearing) and steel plate, and supports the vertical loads of offshore structures and assists its stable installation. The structural design requirement of the LMU is related to its stiffness. This study utilizes the finite element analysis to predict the stiffness. The stiffness of the EB depends on the size of the bearing. Thus, the design variables in this study are defined as the thickness, the width and the number of plates. Since the LMU has different loads for different locations, its stiffness should be designed differently. The multiobjective function is introduced to attain the target stiffness. In this process, the metamodel using the kriging interpolation method is adopted to replace the true stiffness.

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참고문헌

  1. Han, D. S., Jang, S. H., Lee, K. H., “Stiffness Evaluation of Elastomeric Bearings for Leg Mating Unit,” Journal of the Korea Academia-Industrial Cooperation Society, Vol. 18, No. 12, pp. 106-111, 2017. https://doi.org/10.5762/KAIS.2017.18.12.106
  2. Sin, B. S., Kim, S. U., Kim J. K., Lee, K. H., “Robust Design of an Automobile Ball Joint Considering the Worst-Case Analysis,” Journal of the Korean Society of Manufacturing, Vol. 16, No. 1, pp. 102-111, 2017.
  3. Nestor, V. Q., Javier, V. G., Salvador, P., "Surrogate Modeling-Based Optimization of SAGD Processes," Journal of Petroleum Science and Engineering, Vol. 35, Issues 12, pp. 83-89, 2002. https://doi.org/10.1016/S0920-4105(02)00167-5
  4. Song, B. C., Park, Y. C., Kang, S. W., Lee, K. H., “Structural Optimization of an Upper Control Arm, Considering the Strength,” J. of Automobile Engineering, Vol. 223, No. 6, pp. 727-735, 2009. https://doi.org/10.1243/09544070JAUTO1090
  5. Lee, K. H., “A Robust Structural Design Method Using the Kriging Model to Define the Probability of Design Success,” Journal of Mechanical Engineering Science, Series C, Vol. 224, No. 2, pp. 379-388, 2010. https://doi.org/10.1243/09544062JMES1736
  6. Park, Y. C., Baek, S. K., Seo, B. K., Kim, J. K., Lee, K. H., "Lightweight Design of an Outer Tie Rod for an Electrical Vehicle," Journal of Applied Mathematics, Vol. 2014, pp. 6, 2014.
  7. Byon, S. K., "Optimization of Boss Shape for Damage Reduction of the Press-fitted Shaft End," Journal of the Korean Society of Manufacturing, Vol. 14, No. 3, pp. 85-91, 2015 (http://doi.org/10.14775/ksmpe.2015.14.3.085).
  8. Bae, D. Y., Lee, S. J., Lee, J. Y., “Calculation of Load on Jacket Leg during Float-over Installation of Dual Topsides Using Single Vessel,” Journal of Ocean Engineering and Technology, Vol. 29, No. 2, pp. 135-142, 2015. https://doi.org/10.5574/KSOE.2015.29.2.135
  9. Seval, P., Fuad, O., “Compression of Hollow-Circular Fiber-Reinforced Rubber Bearings,” Structural Engineering and Mechanics, Vol. 38, No. 3, pp. 361-384, 2011. https://doi.org/10.12989/sem.2011.38.3.361