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Vibration of fresh fruits and vegetables during refrigerated truck transport.

Author(s) : HINSCH R. T., SLAUGHTER D. C., CRAIG W. L., THOMPSON J. F.

Type of article: Article

Summary

Past studies have indicated that transit vibration may be more important than impacts as source of damage. In cross-country tests of cherries, nectarines, and pears in semi-trailers equipped with steel-spring suspension systems, highest Power Spectral Density (PSD) levels for acceleration were found at about 3.5 hertz. Other frequencies with high PSD levels were 9, 18 and 25 hertz. Similar results were found in tests with fresh tomatoes. However, in trailers equipped with an air-ride suspension and loaded with tomatoes, the PSD levels were attenuated at 3.5 hertz, and were reduced at other frequencies. The highest PSD levels were found at the rear of the trailer, with resonance in the loaded boxes occurring at some frequencies. Horizontal acceleration was much less than the vertical acceleration.

Details

  • Original title: Vibration of fresh fruits and vegetables during refrigerated truck transport.
  • Record ID : 1995-3214
  • Languages: English
  • Source: Trans. ASAE - vol. 36 - n. 4
  • Publication date: 1993

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