Investigation of the vibration effect of using single or double eccentric mass in the trunk shakers used in fruit harvesting

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dc.authoridOzalp, Adem Fatih/0000-0001-8873-4663
dc.contributor.authorCetinkaya, Celalettin
dc.contributor.authorPolat, Refik
dc.contributor.authorOzalp, Adem Fatih
dc.date.accessioned2024-09-29T15:57:36Z
dc.date.available2024-09-29T15:57:36Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractTrunk shakers are widely used in the harvesting of tree fruits. The vibration produced by trunk shakers is obtained by rotating eccentric masses. In trunk shakers, a single eccentric mass is used as well as a double eccentric mass. However, there is no study on their effectiveness relative to each other if these eccentric masses are used single and double. In this study, the vibration effect of eccentric masses in trunk shakers is compared when they are operated in axial or parallel positions as a double mass instead of a single mass. For this purpose, a trunk shaker was designed for a stiff trunk tree and manufactured after mod-eling in 3D. The 3D model of the trunk shaker is simulated in ANSYS software. Afterward, experiments are carried out with the manufactured trunk shaker assembly. A trunk model (steel pipe) is vibrated by operating the eccentric masses at frequencies of 16.5 Hz and 25 Hz. Vibration graphics are obtained by making measurements for 2 s in the x and y axes directions at two different points of the tree model. The vibration results obtained in the simulations in ANSYS software are compared with the results obtained in the experimental study. In both simulations and experimental studies, it has been found that when double mass is used instead of single mass on trunk shakers, there is a decrease in the vibration values they produce. The vectorial resultant of the acceleration values produced by the masses at differ-ent positions in the x and y axes were compared proportionally. When the dual mass is used instead of a single mass, the greatest reduction in acceleration was obtained in dual-mass experiments (-14.6 % in experiments and-14.2 % in simulations) placed in parallel positions at 25 Hz frequency. These results show that the positions of the eccentric masses as well as their frequencies are critical for harvesting in a shorter time without damaging the tree trunk. It was concluded that the use of single eccentric mass trunk shakers may be more efficient for fruit harvesting on trees with very stiff trunks.(c) 2022 Karabuk University. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [114O029, 1002]; TUBITAKen_US
dc.description.sponsorshipThis study has been assisted with code number 114O029 and 1002 project by the Scientific and Technological Research Council of Turkey (TUBITAK). We would like to thank TUBITAK for their support.en_US
dc.identifier.doi10.1016/j.jestch.2022.101228
dc.identifier.issn2215-0986
dc.identifier.scopus2-s2.0-85137738301en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jestch.2022.101228
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4912
dc.identifier.volume35en_US
dc.identifier.wosWOS:000892452200002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier - Division Reed Elsevier India Pvt Ltden_US
dc.relation.ispartofEngineering Science and Technology-An International Journal-Jestechen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectTrunk shakersen_US
dc.subjectVibratory harvesten_US
dc.subjectRotational eccentric massen_US
dc.subjectSingle -double eccentric massen_US
dc.titleInvestigation of the vibration effect of using single or double eccentric mass in the trunk shakers used in fruit harvestingen_US
dc.typeArticleen_US

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