Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Experimental Study of the Dynamic Characteristics of Rubber Mounts for Agricultural Tractor Cabin

  • Choi, Kyujeong (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Oh, Jooseon (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Ahn, Davin (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Park, Young-Jun (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Park, Sung-Un (Research and Development Institute, Tongyang Moolsan Co., Ltd.) ;
  • Kim, Heung-Sub (Department of Smart Industrial Machine Technologies, Korea Institute of Machinery and Materials)
  • Received : 2018.11.04
  • Accepted : 2018.11.16
  • Published : 2018.12.01
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Abstract

Purpose: To obtain the dynamic characteristics (spring stiffness and damping coefficient) of a rubber mount supporting a tractor cabin in order to develop a simulation model of an agricultural tractor. Methods: The KS M 6604 rubber mount test method was used to test the dynamic characteristics of the rubber mount. Of the methods proposed in the standard, the resonance method was used. To perform the test according to the standard, a base excitation test device was constructed and the accelerations were measured. Results: Displacement transmissibility was measured by varying the frequency from 3-30 Hz. The vibration transmissibility at resonance was confirmed, and the dynamic stiffness and damping coefficient of the rubber mount were obtained. The front rubber mount has a spring constant of 1247 N/mm and damping ratio of 3.27 Ns/mm, and the rear rubber mount has a spring constant of 702 N/mm and damping ratio of 1.92 Ns/mm. Conclusions: The parameters in the z-direction were obtained in this study. In future studies, we will develop a more complete tractor simulation model if the parameters for the x- and y-directions can be obtained.

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References

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