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2018 Vol.43, Issue 4

Original Article

Experimental Study of the Dynamic Characteristics of Rubber Mounts for Agricultural Tractor Cabin
Kyujeong Choi1
Jooseon Oh1
Davin Ahn1
Young-Jun Park12*
Sung-Un Park3
Heung-Sub Kim4
1Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 08826, Korea
2Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Korea
3Research and Development Institute, Tongyang Moolsan Co., Ltd. Gongju, 32530, Korea
4Department of Smart Industrial Machine Technologies, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
* Corresponding Author
December 2018. pp. 255-262
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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.

Keywords
Base excitation system
Dynamic characteristics
Rubber mount
Tractor simulation model
References
1
Cho, J. S., K. U. Kim and H. J. Park. 2000. Determination of dynamic parameters of agricultural tractor cab mount system by a modified DSIM. Transactions of the ASAE 43(6): 1365-1369.
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Choi, H.-J. and S.-H. Lee. 2018. Shape optimal design of anti-vibration rubber assembly to reduce the vibration of a tractor cabin. Journal of the Korea Academia- Industrial Cooperation Society 19(4): 657-663.
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Information
  • Publisher :The Korean Society for Agricultural Machinery
  • Publisher(Ko) :한국농업기계학회
  • Journal Title :Journal of Biosystems Engineering
  • Journal Title(Ko) :바이오시스템공학
  • Volume : 43
  • No :4
  • Pages :255-262
  • Received Date :2018. 11. 04
  • Revised Date :2018. 11. 15
  • Accepted Date : 2018. 11. 16
  • DOI :https://doi.org/10.5307/JBE.2018.43.4.255
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