Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method

IntroductionTo enhance the application of mechanized harvesting and supplement research on harvesting theory in mudflat-buried shellfish harvesting in China, a brush-screen cooperative mudflat-buried shellfish vibration harvester was designed.MethodsThe harvester is primarily composed of a crank roc...

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Main Authors: Hangqi Li, Gang Mu, Hanbing Zhang, Hao Wu, Fawei Liu, Zhenyin Sun, Qian Zhang, Yizhou Wang, Yurui Wang, Xiuchen Li, Guochen Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2023.1134888/full
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author Hangqi Li
Gang Mu
Hanbing Zhang
Hao Wu
Fawei Liu
Zhenyin Sun
Qian Zhang
Yizhou Wang
Yurui Wang
Xiuchen Li
Guochen Zhang
Guochen Zhang
author_facet Hangqi Li
Gang Mu
Hanbing Zhang
Hao Wu
Fawei Liu
Zhenyin Sun
Qian Zhang
Yizhou Wang
Yurui Wang
Xiuchen Li
Guochen Zhang
Guochen Zhang
author_sort Hangqi Li
collection DOAJ
description IntroductionTo enhance the application of mechanized harvesting and supplement research on harvesting theory in mudflat-buried shellfish harvesting in China, a brush-screen cooperative mudflat-buried shellfish vibration harvester was designed.MethodsThe harvester is primarily composed of a crank rocker double-layer vibrating screen, two stage rolling brush, and a conveyor chain. White clams (Mactra veneriformis) cultured in mudflats were used as the research objects in this paper, and the mechanics and motion states of the shellfish on the vibrating screen were analyzed. The shellfish harvesting simulation response surface experiments based on the discrete element method (DEM) were conducted to analyze the influence of the main operating parameters on the quantity of shellfish harvested.ResultsThe results revealed that the number of shellfish harvested was significantly influenced (p< 0.01) by vibrating screen amplitude, first-stage spiral rolling stainless steel brush rotation rate, and harvester travel speed. The optimal combination of key parameters was 1.4 mm, 40 rpm, and 10 m/min, respectively. With these values, the projected shellfish crushing rate was 2.82% and the shellfish harvesting efficiency was 125 pieces/m2. The equipment was then manufactured and the shellfish harvesting verification test was performed under the same operating parameters as the simulation. Test results indicated that the harvesting efficiency of the equipment was 114 pieces/m2 and the shellfish crushing rate was 6.97%.DiscussionThe shellfish harvesting work could be completed by the equipment effectively and with low loss. The results of this study provide a theoretical reference for a novel mechanized method of harvesting mudflat-buried shellfish.
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spelling doaj.art-c761dfcfa82546ce9bfad4c3e29ccb4e2023-03-16T06:49:21ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-03-011010.3389/fmars.2023.11348881134888Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element methodHangqi Li0Gang Mu1Hanbing Zhang2Hao Wu3Fawei Liu4Zhenyin Sun5Qian Zhang6Yizhou Wang7Yurui Wang8Xiuchen Li9Guochen Zhang10Guochen Zhang11College of Engineering, Shenyang Agricultural University, Shenyang, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Engineering, Shenyang Agricultural University, Shenyang, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaCollege of Engineering, Shenyang Agricultural University, Shenyang, ChinaCollege of Mechanical and Power Engineering, Dalian Ocean University, Dalian, ChinaIntroductionTo enhance the application of mechanized harvesting and supplement research on harvesting theory in mudflat-buried shellfish harvesting in China, a brush-screen cooperative mudflat-buried shellfish vibration harvester was designed.MethodsThe harvester is primarily composed of a crank rocker double-layer vibrating screen, two stage rolling brush, and a conveyor chain. White clams (Mactra veneriformis) cultured in mudflats were used as the research objects in this paper, and the mechanics and motion states of the shellfish on the vibrating screen were analyzed. The shellfish harvesting simulation response surface experiments based on the discrete element method (DEM) were conducted to analyze the influence of the main operating parameters on the quantity of shellfish harvested.ResultsThe results revealed that the number of shellfish harvested was significantly influenced (p< 0.01) by vibrating screen amplitude, first-stage spiral rolling stainless steel brush rotation rate, and harvester travel speed. The optimal combination of key parameters was 1.4 mm, 40 rpm, and 10 m/min, respectively. With these values, the projected shellfish crushing rate was 2.82% and the shellfish harvesting efficiency was 125 pieces/m2. The equipment was then manufactured and the shellfish harvesting verification test was performed under the same operating parameters as the simulation. Test results indicated that the harvesting efficiency of the equipment was 114 pieces/m2 and the shellfish crushing rate was 6.97%.DiscussionThe shellfish harvesting work could be completed by the equipment effectively and with low loss. The results of this study provide a theoretical reference for a novel mechanized method of harvesting mudflat-buried shellfish.https://www.frontiersin.org/articles/10.3389/fmars.2023.1134888/fullmudflat-buried shellfishvibratory screeningdiscrete element simulationMechanization harvesterresponse surface experiments
spellingShingle Hangqi Li
Gang Mu
Hanbing Zhang
Hao Wu
Fawei Liu
Zhenyin Sun
Qian Zhang
Yizhou Wang
Yurui Wang
Xiuchen Li
Guochen Zhang
Guochen Zhang
Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
Frontiers in Marine Science
mudflat-buried shellfish
vibratory screening
discrete element simulation
Mechanization harvester
response surface experiments
title Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
title_full Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
title_fullStr Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
title_full_unstemmed Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
title_short Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method
title_sort design and testing of a mechanized brush screen cooperative vibration harvester for mudflat buried shellfish based on the discrete element method
topic mudflat-buried shellfish
vibratory screening
discrete element simulation
Mechanization harvester
response surface experiments
url https://www.frontiersin.org/articles/10.3389/fmars.2023.1134888/full
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