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Performance Evaluation of a Virtual Test Model of the Frame-Type ROPS for Agricultural Tractors Using FEA

Author

Listed:
  • Ryu-Gap Lim

    (Department of Smart Agriculture, Korea Agriculture Technology Promotion Agency, Iksan 54667, Republic of Korea)

  • Wan-Soo Kim

    (Department of Bio-Industrial Machinery Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
    Upland Field Machinery Research Center, Kyungpook National University, Daegu 41566, Republic of Korea)

  • Young-Woo Do

    (Department of Bio-Industrial Machinery Engineering, Kyungpook National University, Daegu 41566, Republic of Korea)

  • Md. Abu Ayub Siddique

    (Department of Agricultural Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea)

  • Yong-Joo Kim

    (Department of Agricultural Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
    Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
    Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Republic of Korea)

Abstract

In this study, a model of the frame-type ROPS (rollover protective structure) for an agricultural tractor was developed using FEA (finite-element analysis). Various boundary conditions were applied as input variables to replace the actual test of the ROPS with a virtual test. An optimization study was carried out based on the boundary conditions of the bolt, considering the ROPS part directly mounted on the tractor and the folding connection to the ROPS. The results of the virtual test were compared with those of the actual test, and the error was determined. The maximum error of the evaluation model was 7.0% for the force applied on the load and 9.6% for the corresponding ROPS deformation. All mounting bolts of the ROPS required modeling. In particular, we had to establish free boundary conditions for axial rotation to implement the folding connection. In addition, a simulation of the frame-type ROPS was conducted according to the mesh size. A convenient simulation time was obtained for a mesh size of 8~10 mm. Compared with the actual test, the accuracy was the highest with a mesh size of 6~8 mm.

Suggested Citation

  • Ryu-Gap Lim & Wan-Soo Kim & Young-Woo Do & Md. Abu Ayub Siddique & Yong-Joo Kim, 2023. "Performance Evaluation of a Virtual Test Model of the Frame-Type ROPS for Agricultural Tractors Using FEA," Agriculture, MDPI, vol. 13(10), pages 1-15, October.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:10:p:2004-:d:1260298
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