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vibration mode for effective mechanical harvesting of shengy olive
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نویسنده
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گل پیرا هیوا ,loghavi m
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منبع
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ماشين هاي كشاورزي - 2022 - دوره : 12 - شماره : 1 - صفحه:33 -41
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چکیده
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The main aim of this study was to optimize the design parameters of the fruit shakers for efficient harvesting of shengy olive. a single-degree-of-freedom spring-mass model was established to determine the natural frequency and damping coefficient of the limb. a tractor-mounted shaker that transmits vibration to limbs and fruits via a reciprocating mechanism was fabricated for field evaluation of the forced vibration modes. a 3×4 factorial experiment with a completely randomized design was conducted to investigate the effects of shaking amplitudes and frequencies on fruit removal. the shaking mode with a frequency of 10 hz and amplitude of 80 mm transmitted the average power of 92 w to remove 95% of fruits in the field trial. this oscillation characteristic should be used to redesign the fruit shakers to pass human safety standards and efficient harvesting.
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کلیدواژه
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fruit harvester ,forced vibration ,limb shaker ,mathematical modeling ,natural frequency
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آدرس
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university of kurdistan, department of biosystems engineering, iran, university of shiraz, department of biosystems engineering, iran
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Vibration Mode for Effective Mechanical Harvesting of Shengy Olive
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Authors
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Golpira H ,Loghavi M
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Abstract
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The main aim of this study was to optimize the design parameters of the fruit shakers for efficient harvesting of Shengy olive. A singledegreeoffreedom springmass model was established to determine the natural frequency and damping coefficient of the limb. A tractormounted shaker that transmits vibration to limbs and fruits via a reciprocating mechanism was fabricated for field evaluation of the forced vibration modes. A 3×4 factorial experiment with a completely randomized design was conducted to investigate the effects of shaking amplitudes and frequencies on fruit removal. The shaking mode with a frequency of 10 Hz and amplitude of 80 mm transmitted the average power of 92 W to remove 95% of fruits in the field trial. This oscillation characteristic should be used to redesign the fruit shakers to pass human safety standards and efficient harvesting.
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Keywords
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