Analysis of effects of shellfish harvesting methods on digging shovel performance using the discrete element method
文献类型：期刊论文
| 作者 | Fu, Shancan2; Zhang, Shaolei2; Yang, Lei2; Wu, Haiyun2; Ding, Zhengliang1,2; Zhang, Tao1; Jiang, Yongcheng2 |
| 刊名 | AQUACULTURAL ENGINEERING
 |
| 出版日期 | 2026-01-15 |
| 卷号 | 112页码:14 |
| 关键词 | Digging force Forward speed Digging depth Discrete element simulation Harvesting rate |
| ISSN号 | 0144-8609 |
| DOI | 10.1016/j.aquaeng.2025.102654 |
| 通讯作者 | Jiang, Yongcheng(jiangyongcheng@tjau.edu.cn) |
| 英文摘要 | Mechanized harvesting has been progressively supplanting manual harvesting in the domain of shellfish harvesting. A crucial technical quandary within this area pertains to the attainment of a high harvesting rate concomitant with a low damage rate under conditions of diminished digging force and minimal soil disturbance. This study investigates the effects of two types of shellfish harvesting methods, i.e., roller-type and vibratingtype, on the performance of digging shovel, and systematically compares their characteristics of harvesting rate, forces exerted on the shellfish, digging force, kinetic energy, and soil disturbance during the harvesting process. Additionally, the study also investigates the effects of different forward speeds and soil types on the performance of roller toothed (RT) shovel, roller flat (RF) shovel, vibrating toothed (VT) shovel, and vibrating flat (VF) shovel. Test results indicate that the harvesting rate of RT shovel is lower than that of vibrating digging shovel at shallow depths, but it has a certain cost advantage due to its capability to achieve fewer small shellfish. The VT shovel exhibits a relatively high harvesting rate (78.33 %) and exerts lower forces on shellfish at deeper depths. The digging force encountered by roller-type shovels exceeds that of vibrating shovels. As the digging depth increases, the roller-type shovels have a significant influence on the soil disturbance rate, while the vibrating-type excavation shovel has a relatively large effect on the soil bulkiness. At high forward speed, the digging force and kinetic energy of RT shovel are 1.78 times and 4.85 times those of vibrating shovel respectively. The roller-type digging shovel, especially the RF shovel, is not suitable for shellfish harvesting in compacted soil, because it needs to overcome larger digging force (i.e., 103.12 N) and leads to higher soil disturbance rate (i.e., 0.74). The vibrating shovel can adapt to various loose soils other than just high-density soil, and it experiences relatively small digging force and soil disturbance rate. This study provides theoretical guidance for the optimized design and application of mechanized shellfish harvesting, and its findings can further assist engineers in developing more energy-efficient and environmentally friendly harvesting machines, thereby demonstrating the greater practical value of the research. |
| WOS关键词 | DEM |
| 资助项目 | Open Fund Project of Key Laboratory of Smart Breeding of the Ministry of Agriculture and Rural Affairs[2024-TJAULSBF-2507] ; Key R & D Program of Shandong Province[2023CXGC010411] ; National Key Research and Development Program 'Marine Fisheries' Special Project[2023YFD2400800] ; Central Governmen's Funds for Guiding Local Science and Technology Devel-opment (Excellent Special Commissioner of Agricultural Science and Technology Project)[24ZYCGSN01180] ; Central Governmen's Funds for Guiding Local Science and Technology Devel-opment (Excellent Special Commissioner of Agricultural Science and Technology Project)[24ZYCGSN00360] |
| WOS研究方向 | Agriculture ; Fisheries |
| 语种 | 英语 |
| WOS记录号 | WOS:001611051600002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203794]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Jiang, Yongcheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 2.Tianjin Agr Univ, Coll Engn & Technol, Key Lab Smart Breeding, Coconstruct Minist & Prov,Minist Agr & Rural Affai, Tianjin 300392, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Shancan,Zhang, Shaolei,Yang, Lei,et al. Analysis of effects of shellfish harvesting methods on digging shovel performance using the discrete element method[J]. AQUACULTURAL ENGINEERING,2026,112:14. |
| APA | Fu, Shancan.,Zhang, Shaolei.,Yang, Lei.,Wu, Haiyun.,Ding, Zhengliang.,...&Jiang, Yongcheng.(2026).Analysis of effects of shellfish harvesting methods on digging shovel performance using the discrete element method.AQUACULTURAL ENGINEERING,112,14. |
| MLA | Fu, Shancan,et al."Analysis of effects of shellfish harvesting methods on digging shovel performance using the discrete element method".AQUACULTURAL ENGINEERING 112(2026):14. |
入库方式： OAI收割
来源：海洋研究所
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