https://doi.org/10.4081/jae.2022.1245

Simulation study and field experiments on the optimal canopy shaking action for harvesting Camellia oleifera fruits

Vol. 53 No. 3 (2022)
Published: 30 June 2022
Camellia oleifera, mechanical harvesting, optimal combination parameters, orthogonal experiment.
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Authors

Xiaoqiang Du
xqiangdu@zstu.edu.cn
School of Mechanical Engineering & Automation, Zhejiang Sci-Tech University; Key Laboratory of Transplanting Equipment and Technology of Zhejiang Province, China.
Tengfei Shen
School of Mechanical Engineering & Automation, Zhejiang Sci-Tech University, China.
Kaizhan Chen
School of Mechanical Engineering & Automation, Zhejiang Sci-Tech University, China.
Guofeng Zhang
School of Mechanical Engineering & Automation, Zhejiang Sci-Tech University; Key Laboratory of Transplanting Equipment and Technology of Zhejiang Province, China.
Xiaohua Yao
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
Juanjuan Chen
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
Yongqing Cao
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.

With the increasing cultivation scale of Camellia oleifera in China, the demand for mechanical harvesting machinery is very urgent. Inefficient fruit harvesting has become a bottleneck hindering the development of the C. oleifera industry. In order to achieve high fruit harvesting percentage and low detachment percentage of the flower buds, a canopy shaking mechanism is proposed for massively harvesting C. oleifera fruits which applies the reciprocating linear motion of multiple beating-bar arrays to the tree canopy. The multiple beating-bar arrays driven by the eccentric disk can generate comb-brushing effects on the tree canopy. Three kinds of C. oleifera tree architecture were modelled, and their dynamics were simulated by finite element analysis. Their modal analysis results show that the low-order natural frequencies of the C. oleifera trees with different canopy shapes are very close. According to harmonic response analysis, the low-frequency excitation is used to harvest C. oleifera fruit. The orthogonal experiments were carried out on the canopy shaker prototype with the motor speed, reciprocating stroke, and duration of vibration as the influencing factors, and the fruit harvesting percentage and the detachment percentage of the flower buds as the evaluation indices. The results show that the same optimal parameter combination can be used for three kinds of C. oleifera tree architecture, in which the motor speed is 360 r/min, the reciprocating stroke is 80 mm, and the duration of the vibration is 8 s. The average fruit harvesting percentage is 72.3%, and the average detachment percentage of the flower buds is 13.9%.

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Google Scholar
Europe PMC
Aiello G., Vallone M., Catania P. 2019. Optimising the efficiency of olive harvesting considering operator safety. Biosyst. Eng. 185:15-24.
Bentaher H., Haddar M., Fakhfakh T. 2013. Finite elements modeling of olive tree mechanical harvesting using different shakers. Trees-Struct. Funct. 27:1537-45.
Caprara C., Pezzi F. 2011. Measuring the stresses transmitted during mechanical grape harvesting. Biosyst. Eng. 110:97-105.
Castro-Garcia S., Aragon-Rodriguez F., Sola-Guirado R.R., Serrano A.J., Soria-Olivas E., Gil-Ribes J.A. 2019. Vibration monitoring of the mechanical harvesting of citrus to improve fruit detachment efficiency. Sensors 19:1760.
Castro-Garcia S., Castillo-Ruiz F.J., Jimenez-Jimenez F., Gil-Ribes J.A., Blanco-Roldan G.L. 2015. Suitability of Spanish ‘Manzanilla’ table olive orchards for trunk shaker harvesting. Biosyst. Eng. 129:388-95.
Castro-Garcia S., Rosa U.A., Gliever C.J., Smith D., Burns J.K., Krueger W.H., Ferguson L., Glozer K. 2009. Video evaluation of table olive damage during harvest with a canopy shaker. HortTechnol. 19:260-6.
Castro-Garcia S., Sola-Guirado R.R., Gil-Ribes J.A. 2018. Vibration analysis of the fruit detachment process in late-season ‘Valencia’ orange with canopy shaker technology. Biosyst. Eng. 170:130-7.
Du X., Jiang F., Li S., Xu N., Li D., Wu C. 2019. Design and experiment of vibratory harvesting mechanism for chinese hickory nuts based on orthogonal eccentric masses. Comput. Electron. Agric. 156:178-86.
Feng G., Rao H., Xu P., Liu M. 2014. Experimental study on the biomechanical properties of camellia fruit and camellia flower buds. J. Agric. Mech. Res. 36:187-91.
Feng G., Rao H., Xu P., Liu M. 2015. Research status on picking equipment and technology of camellia fruit. J. Chin. Agric. Mech. 36:125-7.
Fu W., Cui J., Zhang H., Kan Z., Wang L., Li J. 2016. The research and development of mechanization harvesting technology for forest fruit. J. Agric. Mech. Res. 38:264-8.
Fu W., Zhang Z., Ding K., Cao W., Kan Z., Pan J., Liu Y. 2018. Design and test of 4ZZ-4A2 full-hydraulic self-propelled jujube harvester. Int. J. Agric. Biol. Eng. 11:86-93.
Hafezalkotob A., Hami-Dindar A., Rabie N., Hafezalkotob A. 2018. A decision support system for agricultural machines and equipment selection: a case study on olive harvester machines. Comput. Electron. Agric. 148:207-16.
Hoshyarmanesh H., Dastgerdi H.R., Ghodsi M., Khandan R., Zareinia K. 2017. Numerical and experimental vibration analysis of olive tree for optimal mechanized harvesting efficiency and productivity. Comput. Electron. Agric. 132:34-48.
Lavee S., Haskal A., Avidan B. 2012. The effect of planting distances and tree shape on yield and harvest efficiency of cv. Manzanillo table olives. Sci. Hortic. 142:166-73.
Liu J., Wu L., Chen D., Yu Z., Wei C. 2018. Development of a soil quality index for Camellia oleifera forestland yield under three different parent materials in Southern China. Soil Tillage Res. 176:45-50.
Luo S.Z., Hu X.F., Pan L.H., Zheng Z., Zhao Y.Y., Cao L.L., Jiang S.T. 2019. Preparation of camellia oil-based W/O emulsions stabilized by tea polyphenol palmitate: structuring camellia oil as a potential solid fat replacer. Food Chem. 276:209-17.
Ortiz C., Torregrosa A. 2013. Determining adequate vibration frequency, amplitude, and time for mechanical harvesting of fresh mandarins. Trans. ASABE 56:15-22.
Peng J., Xie H., Feng Y., Fu L., Sun S., Cui Y. 2017. Simulation study of vibratory harvesting of Chinese winter jujube (Zizyphus jujuba Mill. cv. Dongzao). Comput. Electron. Agric. 143:57-65.
Pu Y., Toudeshki A., Ehsani R., Yang F., Abdulridha J. 2018. Selection and experimental evaluation of shaking rods of canopy shaker to reduce tree damage for citrus mechanical harvesting. Int. J. Agric. Biol. Eng. 11:48-54.
Rao H., Huang D., Wang Y., Chen B., Liu M. 2019. Design and experiment of hydraulic-driven camellia fruit picking machine. Trans. Chin. Soc. Agric. Mach. 50:133-47.
Sola-Guirado R.R., Blanco-Roldan G.L., Castro-Garcia S., Castillo-Ruiz F.J., Gil-Ribes J.A. 2018. Innovative circular path harvester for mechanical harvesting of irregular and large-canopy olive trees. Int. J. Agric. Biol. Eng. 11:86-93.
Sola-Guirado R.R., Jimenez-Jimenez F., Blanco-Roldan G.L., Castro-Garcia S., Castillo-Ruiz F.J., Gil-Ribes J.A. 2016. Vibration parameters assessment to develop a continuous lateral canopy shaker for mechanical harvesting of traditional olive trees. Span. J. Agric. Res. 14: e0204.
Song C., Kong H., Du Y., Chen X. 2019. Research on regional advantage changes of Camellia oleifera Abel production in China. Iss. For. Econ. 39:105-12.
Wang F., Ding Y., Xie W., Yang D. 2019. Design and experimental study of a separating machine for seed and peel of Camellia oleifera fruit. IFAC PapersOnLine 52:87-91.
Zhou J., He L., Zhang Q., Karkee M. 2014. Effect of excitation position of a handheld shaker on fruit removal efficiency and damage in mechanical harvesting of sweet cherry. Biosyst. Eng. 125:36-44.

How to Cite

Du, X. (2022) “Simulation study and field experiments on the optimal canopy shaking action for harvesting <em>Camellia oleifera</em> fruits”, Journal of Agricultural Engineering, 53(3). doi: 10.4081/jae.2022.1245.
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