한국농업기계학회:학술대회논문집 (Proceedings of the Korean Society for Agricultural Machinery Conference)

한국농업기계학회 (Korean Society for Agricultural Machinery)
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VIBRATION PROPERTIES OF PEARS

  • Kim, M. S. (Departments of Agricultural Machinery Engineering Chungnam National University) ;
  • H. M. Jung (Departments of Agricultural Machinery Engineering Chungnam National Universit) ;
  • Park, I. K. (Departments of Agricultural Machinery Engineering Chungnam National Universit) ;
  • Park, J. M. (Department of Mechanical Engineering Miryang National University)
  • 발행 : 2000.11.01
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초록

Instrumentation and technologies are described for determining the vibration response characteristics of the pear with frequency range 5 to 320Hz. The computer program for controlling the vibration exciter and the function generator and for measuring the vibration response characteristics of the pear was developed. Mechanical properties such bioyield deformation, rupture deformation and apparent elastic modulus etc. were compared with the vibration response characteristics of the pear. The resonant frequency of the pear ranged from 53 to 102Hz and the amplitude at resonance was between 1.08 and 2.48g-rms. The resonant frequency and amplitude at resonance decreased with the increase of the sample mass, and they were slightly affected by mechanical properties such as bioyield deformation and rupture deformation. Regression analysis was performed among the relatively high correlated parameters from the results of correlation coefficient analysis.

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