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Optimum shape design of rotating shaft by ESO method

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Abstract

Evolutionary structural optimization (ESO) method is based on a simple idea that the optimal structure can be produced by gradually removing the ineffectively used material from the design domain. ESO seems to have some attractive features in engineering aspects: simple and fast. In this paper, ESO is applied to optimize shaft shape for the rotating machinery by introducing variable size of finite elements in optimization procedure. The goal of this optimization is to reduce total shaft weight and resonance magnification factor (Q factor), and to yield the critical speeds as far from the operating speed as possible. The constraints include restrictions on critical speed, unbalance response and bending stresses. Sensitivity analysis of the system parameters is also investigated. The results show that new ESO method can be efficiently used to optimize the shape of rotor shaft system with frequency and dynamic constraints.

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Authors and Affiliations

  1. Dept. of Maritime Police & Production System, The institute of Marine Industry, Gyeonsang National University, 445 Inpyeongdong, Tongyoung, 650-160, Gyeongnam, South Korea

    Young-Su An

  2. School of Engineering Systems, Queensland University of Technology, 2 George Street, QLD4001, Brisbane, Australia

    Yong-Han Kim & Andy Tan

  3. Intelligent Mechanics Laboratory, School of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan, South Korea

    Bo-Suk Yang

  4. School of Mechanical and Aerospace Engineering, The institute of Marine Industry, Gyeonsang National University, 445 Inpyeongdong, Tongyoung, 650-160, Gyeongnam, South Korea

    Won-Cheol Kim & Byeong-Keun Choi

Authors
  1. Yong-Han Kim
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  2. Andy Tan
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  3. Bo-Suk Yang
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  4. Won-Cheol Kim
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  5. Byeong-Keun Choi
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  6. Young-Su An
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Correspondence to Young-Su An.

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Kim, YH., Tan, A., Yang, BS. et al. Optimum shape design of rotating shaft by ESO method. J Mech Sci Technol 21, 1039–1047 (2007). https://doi.org/10.1007/BF03027653

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  • DOI: https://doi.org/10.1007/BF03027653

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