{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T12:51:02Z","timestamp":1768567862502,"version":"3.49.0"},"reference-count":15,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,3,5]],"date-time":"2020-03-05T00:00:00Z","timestamp":1583366400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The National Natural Science Foundation of China, the China Agriculture Research System and the Innovative Research Team of Guangdong Province Agriculture Research System.","award":["Grant No. 51675189; CARS-31; 2017LM2153."],"award-info":[{"award-number":["Grant No. 51675189; CARS-31; 2017LM2153."]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Aiming at the problem that the banana de-handing device has poor radial deployment to the banana bunch stalk during the mechanized banana de-handing procedure, this paper presented a ring deployable mechanism based on a set of planar seven-bar linkages. It consists of multiple basic deployable units, which has great folding\/deploying performance and is suitable for manufacturing a banana de-handing device, the diameter of which can be variably larger. The kinematics analysis of the mechanism was done, and the trajectory in space was obtained. When the mechanism is fully deployed, the diameter is 164 mm. The ratio of the folded height to the deployed diameter is 0.732, the ratio of the folded diameter to the deployed diameter is 0.262, and the ratio of the folded volume to the maximum of the deployed volume is 0.069. An experimental prototype of 500, 500, and 768 mm in length, width, and height was manufactured, and the deploying performance was analyzed to show the feasibility. Finally, experimental results show that 71.43% of the banana hands are de-handed successfully. The mechanism has a great deploying effect on banana bunch stalk, and the quality of the banana crown incision is good.<\/jats:p>","DOI":"10.3390\/sym12030415","type":"journal-article","created":{"date-parts":[[2020,3,6]],"date-time":"2020-03-06T09:26:41Z","timestamp":1583486801000},"page":"415","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Design and Experiment of Banana De-Handing Device Based on Symmetrical Shape Deployable Mechanism"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3844-6580","authenticated-orcid":false,"given":"Jie","family":"Guo","sequence":"first","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohui","family":"Jin","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5013-3918","authenticated-orcid":false,"given":"Jieli","family":"Duan","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9329-7648","authenticated-orcid":false,"given":"Jun","family":"Li","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Han","family":"Fu","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Zhao","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5432-0515","authenticated-orcid":false,"given":"Zeyu","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunhe","family":"Ding","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8953-3548","authenticated-orcid":false,"given":"Yinlong","family":"Jiang","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhou","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Engineering, South China Agricultural University, Guangzhou 510642, China"},{"name":"Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou 514015, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,3,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1007\/s11947-010-0377-6","article-title":"Post-harvest processing of banana: Opportunities and challenges","volume":"4","author":"Mohapatra","year":"2011","journal-title":"Food Bioprocess Technol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"492","DOI":"10.18520\/cs\/v117\/i3\/492-497","article-title":"Parameter optimization of banana crown-cutting machine using combined cutters","volume":"117","author":"Xu","year":"2019","journal-title":"Curr. Sci."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Xu, Z.Y., Yang, Z., and Duan, J.L. (2019). Design and experiment of symmetrical shape deployable arc profiling mechanism based on composite multi-cam structure. Symmetry, 11.","DOI":"10.3390\/sym11080958"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"560","DOI":"10.1016\/j.ifacol.2018.08.145","article-title":"Experimental study on clamping safety margin of a banana stem gripper","volume":"51","author":"Yang","year":"2018","journal-title":"IFAC-PapersOnLine"},{"key":"ref_5","first-page":"148","article-title":"Design and analysis of self-adaptability in banana crown-cutting device based on constant-force mechanism","volume":"50","author":"Yang","year":"2019","journal-title":"Trans. Chin. Soc. Agric. Mach."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Montoya, F.G., Ba\u00f1os, R., and Alcayde, A. (2019). Symmetry in engineering sciences. 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Design"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1063\/1.5115219","article-title":"Configuration synthesis of hoop truss deployable mechanisms for space antenna based on screw theory","volume":"9","author":"Han","year":"2019","journal-title":"AIP Adv."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.ast.2019.105357","article-title":"Design and analysis of a scissors double-ring truss deployable mechanism for space antennas","volume":"93","author":"Han","year":"2019","journal-title":"Aerosp. Sci. 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