https://doi.org/10.4081/jae.2020.1057

Improving olive mechanical harvesting using appropriate natural frequency

Vol. 51 No. 3 (2020)
Published: 29 September 2020
Fruit removal, natural frequency, olive, selectivity, vibration.
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Authors

Ahmed Alzoheiry
alzoheiry@gmail.com
Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia; Department of Natural Resources and Agricultural Engineering, Faculty of Agriculture, Damanhour University, Damanhour, Egypt.
Mohamed Ghonimy
Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia; Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Cairo, Egypt.
Eid Abd El Rahman
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Cairo, Egypt.
Ossama Abdelwahab
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Cairo, Egypt.
Ahmed Hassan
https://orcid.org/0000-0003-2114-3863
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Cairo, Egypt.

The good performance of olive mechanical harvesting by shaking depends on the suitable values of limb vibrator operating parameters (frequency and amplitude). Mathematical models of a single degree of freedom (S.D.F.M) and two degrees of freedom (T.D.F.M) were used to estimate the natural frequency (FN) of olive fruit stem system. The results from these models indicated that the FN values were 33.9, 31.9, and 28.0 Hz for the full mature stage, half-ripe olive, and full-ripe olive respectively. Branch vibrator was operated at three levels of frequency 25, 30 and 35 Hz and 3 levels of amplitude 25, 30 and 35 mm at a vibration time of 10 s. Measurements covered the fruit removal percentage (FRP) and degree of full-ripe fruit selectivity (DS). The results showed that the maximum FRP value, 90.6%, was achieved at a frequency of 35 Hz and amplitude of 25 mm while the maximum DS value, 78.58%, was obtained at 25 Hz frequency and 25 mm amplitude.

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Crossref
Scopus
Google Scholar
Europe PMC
Aiello G, Vallone M, Catania P, 2019. Optimising the efficiency of olive harvesting considering operator safety. Biosystems Engineering. Volume 185, 15-24. DOI: https://doi.org/10.1016/j.biosystemseng.2019.02.016
Bacenetti J, De Luca AI, 2018. Harvesting system sustainability in Mediterranean olive cultivation. Sci. Total. Environ. 625:1446-58. DOI: https://doi.org/10.1016/j.scitotenv.2018.01.005
Castro-García S, Castillo-Ruiz FJ, Sola-Guirado RR, Jiménez-Jiménez F, Blanco-Roldán GL, AgüeraVega J, Gil-Ribes JA, 2014. Table olive response to harvesting by trunk shaker, International Conference on Agricultural Engineering, ref. C0662, 6-10 July, Zurich, Switzerland.
Cicek G, 2011. Determination of harvesting costs and cost analysis for different olive harvesting methods. Journal of Food, Agriculture & Environment Vol.9 (3&4): 201- 204.
Ciro VHJ, 2001. Coffee harvesting I: Determination of the natural frequencies of the fruit stem system in coffee trees. Applied Engineering in Agriculture of the ASAE 17(4): 475– 479. DOI: https://doi.org/10.13031/2013.6464
Ghonimy MI, 2006. Prediction of the suitable amplitude of shaking unit for fruit harvesting. Misr J. Ag. Eng., 23(1): 1-18.
Ghonimy MI, Alzoheiry AM, Abd El Rahman EN, 2019. Citrus harvesting by vibrating action. Misr J. Ag. Eng., 36(1): 25-36. DOI: https://doi.org/10.21608/mjae.2019.94438
Hoshyarmanesh H, Dastgerdi HR, Ghodsi M, Khandan R, Zareinia K, 2017. Numerical and experimental vibration analysis of olive tree for optimal mechanized harvesting efficiency and productivity. Computers and Electronics in Agriculture, 132, 34-48.†DOI: https://doi.org/10.1016/j.compag.2016.11.014
Leone A, Romaniello R, Tamborrino A, Catalano P, Peri G, 2015. Identification of vibration frequency, acceleration, and duration for efficient olive harvesting using a trunk shaker. Transactions of the ASABE, 58(1):1–8.
Martinez A, 1977. Estudio teórico de la dinámica del sistema fruto pedúnculo. Revista Ciencias Técnicas. Serie construcción de maquinaria. Instituto Superior Politécnico José Antonio Echeverría, Habana, Cuba. Octubre. 14-16 pp.
Mayans Céspedes PR, Cansteñs L, de Jesús G, Romanchik Kriuchkova E, Pérez Sobrevilla L, 2016. Modelación matemática del sistema fruto-pedicelo-pedúnculo del mango Manila (Mathematical modeling system of the fruit-pedicel-peduncle Manila mango). Revista mexicana de ciencias agrícolas, 7(4), 781-791 DOI: https://doi.org/10.29312/remexca.v7i4.253
Öztekin YB, Güngör B, 2020. Determining impact-bruising thresholds of peaches using electronic fruit. Scientia Horticulturae, 262, 109046.†DOI: https://doi.org/10.1016/j.scienta.2019.109046
Tinoco HA, 2017. Modeling elastic and geometric properties of Coffea arabica L. var. Colombia fruits by an experimental-numerical approach. International Journal of Fruit Science, 17(2), 159-174. DOI: https://doi.org/10.1080/15538362.2016.1270249
Tornabene F, Fantuzzi N, Bacciocchi M, 2017. Mechanical behaviour of composite Cosserat solids in elastic problems with holes and discontinuities. Composite Structures, 179, 468-481.†DOI: https://doi.org/10.1016/j.compstruct.2017.07.087
Villibor GP, Santos FL, de Queiroz DM, Júnior JKK, de Carvalho Pinto FDA, 2016. Determination of modal properties of the coffee fruit-stem system using high-speed digital video and digital image processing. Acta Scientiarum. Technology, 38(1), 41-48.†Doi: 10.4025/actascitechnol.v38i1.27344. DOI: https://doi.org/10.4025/actascitechnol.v38i1.27344
Zipori I, Dag A, Tugendhaft Y, Birger R, 2014. Mechanical Harvesting of Table Olives: Harvest Efficiency and Fruit Quality, Hortscience, 49(1), 55-58. DOI: https://doi.org/10.21273/HORTSCI.49.1.55

How to Cite

Alzoheiry, A. (2020) “Improving olive mechanical harvesting using appropriate natural frequency”, Journal of Agricultural Engineering, 51(3), pp. 148–154. doi: 10.4081/jae.2020.1057.

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