Published 2023-09-20
Keywords
- Shovel loading resistance,
- discrete element theory,
- EDEM software,
- simulation model,
- loading efficiency
How to Cite
Copyright (c) 2023 Academic Journal of Science, Engineering and Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Abstract
Loader shovelling mechanisms are used in various industrial applications, and the resistance encountered during the shovel loading process greatly affects the loading efficiency. Shovel loading resistance is the reaction force of the material on the bucket during the shovel loading process and contains two parts: the resistance of the bucket insertion stage and the resistance of the lifting stage. Therefore, it is essential to conduct research on shovel loading resistance to improve the performance of the loader shovelling mechanism. This paper presents a simulation analysis of the loader shovelling mechanism using the discrete element theory and EDEM software. A simulation model of the loading process is established, and the forward and reverse shovel loading processes are simulated. The mechanical characteristics of the shovelling operation are analysed visually, and the obstructing effect of the material on the bucket is clarified. The shovelling resistance of the key parts of the bucket at different stages of the shovelling process is specifically analysed, and the parts where the peak shovelling resistance is located and the stages where it is located are identified. The influence of the shovel angle on the resistance is also analysed. The results of the simulation analysis provide insight into the shovel loading resistance and the performance of the loader shovelling mechanism. The study demonstrates that the discrete element method can be effectively used in the simulation analysis of loader shovelling mechanisms, providing a useful tool for the design and optimisation of the loader shovelling mechanism. In conclusion, this research sheds light on the important mechanical characteristics of the shovel loading process and provides a comprehensive analysis of the shovelling resistance encountered by the loader shovelling mechanism. The results of this study can be applied to improve the design and performance of the loader shovelling mechanism, which can have a positive impact on various industrial applications that rely on this technology
References
- Yang Zikang. Research on resistance reduction shoveling strategy of loader based on EDEM [D]. Jilin University, 2022.
- Pang, L. C.. Research on the bucket-material interaction mechanism of bucket wheel stacker bucket based on discrete element method [D]. Jilin University, 2022.
- Wang Shaojie, Yin Yue, Yu Shengfeng, Hou Liang. Simulation analysis of loader coupling dynamics based on RecurDyn-EDEM [J]. Machine Design,2021,38(11):1-6.
- Zheng Pei, Song Wenxi, Hu Xiong. EDEM simulation of excavation resistance of bucket wheel stacker reclaimer under collapsed material condition [J]. Sintered pellets, 2019,44(06):50-54. [5] Li R, Xu Wubin, Li Bing, Yang Xu. Research on discrete unit method for bucket shovel resistance of loader [J]. Journal of Guangxi University of Science and Technology,2017,28(03):77-82.
- Yu, Xuebang. Simulation study of loader bucket operation resistance based on EDEM [D]. Guangxi University of Science and Technology, 2018.
- Seife C. Can the laws of physics be unified? Science,2005,309(5731): 82-82.
- Yan Bo, Zhan Kai, Guo Xin, Li Hengtong, Shi Xiaojie. Simulation study of underground scraper shoveling process based on EDEM [J]. Nonferrous Metals (Mining part),2019, 71(06):74-77. [9] Sun QC, Wang GQ. Introduction to the Mechanics of Particulate Matter. Beijing:Science Press, 2009.
- Sun Qicheng, Hou Meiying, Jin Feng. Physics and Mechanics of Particulate Matter. Beijing: Science Press, 2011.
- Jaeger HM, Nagel SR, Behringer RP. Granular solids, liquids, and gases. Reu Modern Phgs, 1996, 68(4): 1259-12734.
- Kadanoff LP. Built upon sand: theoretical ideas inspiredby granular flows. Rev Modern Phys, 1999, 71(1): 435-4445.
- De Gennes PG. Granular matter: a tentative view.RevModern Phys, 1999, 71(2): S374-S382. [14] Forterre Y, Pouliquen O. Flows of dense granular media.Annual Review Flauid Mechanics, 2008, 40: 1-26.