American Journal of Mechanics and Applications

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Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts

Received: 24 September 2022    Accepted: 21 October 2022    Published: 28 October 2022
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Abstract

This study proposes an integral hydro-bulge forming method for a soccer ball-shaped tank to improve the manufacturing problem of conventional spherical tanks. By cutting the hexagonal and pentagonal parts from the flat steel plate and welding them along the sides of each part, a closed polyhedral box is created according to the composition of a soccer ball. Subsequently, pressure is applied with water into the closed polyhedral box, and the expansion force generated from the inside to the outside is used to form a soccer ball-shaped spherical tank. For verification, we simulate the bulge forming process of the soccer ball-shaped tank using the fine element method (FEM) analysis to confirm the analysis results of the stress and plate thickness distribution of the spherical tank created, and the soccer ball-shaped tank is then actually formed using the proposed manufacturing method. The forming performance and effectiveness of the integral hydro-bulge forming method is verified. The roundness of the actually formed soccer ball-shaped spherical tank with a diameter of 500 mm is 2.36 mm, which indicates high forming accuracy. A design formula a=0.4R for regular hexagonal and regular pentagonal plate parts was derived. In the actual forming experiment, a plate part with a side length of 100 mm was designed with a target radius of 250 mm. The measured radius of the actually formed spherical tank was 249.26 mm, and the accuracy of the derived design formula was verified.

DOI 10.11648/j.ajma.20221002.11
Published in American Journal of Mechanics and Applications (Volume 10, Issue 2, June 2022)
Page(s) 16-24
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Spherical Tank, Integral Hydro Forming, Thin-Walled Tank, Steel Plate Press Forming, Forming by Water Pressure

References
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Cite This Article
  • APA Style

    Yang Jing, Jingchao Guan, Chenghai Kong, Wei Zhao, Nobuyuki Gomi, et al. (2022). Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts. American Journal of Mechanics and Applications, 10(2), 16-24. https://doi.org/10.11648/j.ajma.20221002.11

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    ACS Style

    Yang Jing; Jingchao Guan; Chenghai Kong; Wei Zhao; Nobuyuki Gomi, et al. Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts. Am. J. Mech. Appl. 2022, 10(2), 16-24. doi: 10.11648/j.ajma.20221002.11

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    AMA Style

    Yang Jing, Jingchao Guan, Chenghai Kong, Wei Zhao, Nobuyuki Gomi, et al. Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts. Am J Mech Appl. 2022;10(2):16-24. doi: 10.11648/j.ajma.20221002.11

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  • @article{10.11648/j.ajma.20221002.11,
      author = {Yang Jing and Jingchao Guan and Chenghai Kong and Wei Zhao and Nobuyuki Gomi and Xilu Zhao},
      title = {Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts},
      journal = {American Journal of Mechanics and Applications},
      volume = {10},
      number = {2},
      pages = {16-24},
      doi = {10.11648/j.ajma.20221002.11},
      url = {https://doi.org/10.11648/j.ajma.20221002.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20221002.11},
      abstract = {This study proposes an integral hydro-bulge forming method for a soccer ball-shaped tank to improve the manufacturing problem of conventional spherical tanks. By cutting the hexagonal and pentagonal parts from the flat steel plate and welding them along the sides of each part, a closed polyhedral box is created according to the composition of a soccer ball. Subsequently, pressure is applied with water into the closed polyhedral box, and the expansion force generated from the inside to the outside is used to form a soccer ball-shaped spherical tank. For verification, we simulate the bulge forming process of the soccer ball-shaped tank using the fine element method (FEM) analysis to confirm the analysis results of the stress and plate thickness distribution of the spherical tank created, and the soccer ball-shaped tank is then actually formed using the proposed manufacturing method. The forming performance and effectiveness of the integral hydro-bulge forming method is verified. The roundness of the actually formed soccer ball-shaped spherical tank with a diameter of 500 mm is 2.36 mm, which indicates high forming accuracy. A design formula a=0.4R for regular hexagonal and regular pentagonal plate parts was derived. In the actual forming experiment, a plate part with a side length of 100 mm was designed with a target radius of 250 mm. The measured radius of the actually formed spherical tank was 249.26 mm, and the accuracy of the derived design formula was verified.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Integral Bulge Forming Method for Soccer Ball-Shaped Tank Using Symmetrical Preformed Box Consisting of Plate Parts
    AU  - Yang Jing
    AU  - Jingchao Guan
    AU  - Chenghai Kong
    AU  - Wei Zhao
    AU  - Nobuyuki Gomi
    AU  - Xilu Zhao
    Y1  - 2022/10/28
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ajma.20221002.11
    DO  - 10.11648/j.ajma.20221002.11
    T2  - American Journal of Mechanics and Applications
    JF  - American Journal of Mechanics and Applications
    JO  - American Journal of Mechanics and Applications
    SP  - 16
    EP  - 24
    PB  - Science Publishing Group
    SN  - 2376-6131
    UR  - https://doi.org/10.11648/j.ajma.20221002.11
    AB  - This study proposes an integral hydro-bulge forming method for a soccer ball-shaped tank to improve the manufacturing problem of conventional spherical tanks. By cutting the hexagonal and pentagonal parts from the flat steel plate and welding them along the sides of each part, a closed polyhedral box is created according to the composition of a soccer ball. Subsequently, pressure is applied with water into the closed polyhedral box, and the expansion force generated from the inside to the outside is used to form a soccer ball-shaped spherical tank. For verification, we simulate the bulge forming process of the soccer ball-shaped tank using the fine element method (FEM) analysis to confirm the analysis results of the stress and plate thickness distribution of the spherical tank created, and the soccer ball-shaped tank is then actually formed using the proposed manufacturing method. The forming performance and effectiveness of the integral hydro-bulge forming method is verified. The roundness of the actually formed soccer ball-shaped spherical tank with a diameter of 500 mm is 2.36 mm, which indicates high forming accuracy. A design formula a=0.4R for regular hexagonal and regular pentagonal plate parts was derived. In the actual forming experiment, a plate part with a side length of 100 mm was designed with a target radius of 250 mm. The measured radius of the actually formed spherical tank was 249.26 mm, and the accuracy of the derived design formula was verified.
    VL  - 10
    IS  - 2
    ER  - 

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Author Information
  • Department of Mechanical, Saitama Institute of Technology, Saitama, Japan

  • Department of Mechanical, Saitama Institute of Technology, Saitama, Japan

  • Topy Industries Ltd, Aichi, Japan

  • Weichai Global Axis Technology Co., Ltd, Tokyo, Japan

  • Department of Mechanical, Saitama Institute of Technology, Saitama, Japan

  • epartment of Mechanical, Saitama Institute of Technology, Saitama, Japan

  • Sections