碎甘薯秧离散元仿真参数测量与标定*

doi:10.13733/j.jcam.issn.20955553.2021.11.12

中国农机化学报 ›› 2021, Vol. 42 ›› Issue (11): 72-79.DOI: 10.13733/j.jcam.issn.20955553.2021.11.12

碎甘薯秧离散元仿真参数测量与标定^*

穆桂脂^1,2, 亓协腾¹, 张万枝^1,2, 吕钊钦^1,2, 张婷婷^1,2, 王姝文¹

1.山东农业大学机械与电子工程学院,山东泰安,271018;
2.山东省园艺机械与装备重点实验室,山东泰安,271018

收稿日期:2021-10-29 修回日期:2021-11-08 出版日期:2021-11-15 发布日期:2021-11-15
作者简介:穆桂脂,女,1982年生,山东泰安人,博士研究生,讲师;研究方向为农业机械化及自动化。E-mail: 153616196@qq.com;译者:王公仆,男,1987年生,湖北武汉人,硕士,助理研究员;研究方向为土下果实生产机械化技术及装备。E-mail: wanggongpu37@163.com
基金资助:
*山东省农机装备研发创新计划项目(2017YF002);山东省现代农业产业技术体系薯类创新团队农业机械岗位专家项目(SDAIT—16—10);国家自然科学基金项目(31701325);泰安市科技发展计划项目(2018NS0096)

Parameter measurement and calibration in discrete element simulation of broken sweet potato seedlings

Mu Guizhi^1,2, Qi Xieteng¹, Zhang Wanzhi^1,2, Lü Zhaoqin^1,2, Zhang Tingting^1,2, Wang Shuwen¹

1. College of Mechanical and Electrical Engineering, Shandong Agricultural University, Tai'an, 271018, China;
2. Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments, Tai'an, 271018, China

Received:2021-10-29 Revised:2021-11-08 Online:2021-11-15 Published:2021-11-15

摘要/Abstract

摘要： 针对甘薯秧蔓机械化回收过程中离散元仿真研究缺乏准确参数值的问题,采用直接测量和虚拟标定相结合的方法对碎甘薯茎秆和叶片离散元仿真参数进行研究。采用物理试验法获得碎甘薯秧的本征参数、碰撞恢复系数等参数值及碎甘薯秧颗粒的静摩擦系数参数范围,并为离散元法仿真设计了不同的参数组合。通过堆积角优化仿真试验确定甘薯叶片本征参数及其他不易直接测量的离散元仿真参数。Plackett-Burman试验表明,甘薯茎秆—甘薯茎秆和甘薯茎秆—45钢的静摩擦系数、甘薯茎秆—甘薯茎秆和甘薯茎秆—甘薯叶的滚动摩擦系数均显著影响堆积角。运用最陡爬坡试验和Box-Behnken优化试验标定了对碎甘薯秧堆积角有显著影响的参数值,以得到的参数进行颗粒堆积仿真试验,测得堆积角平均值为40.51°,与实测值相对误差为0.972%,说明物理试验加优化仿真试验来标定离散元参数是可行的,标定所得的参数可作为甘薯秧茎叶离散元仿真参数。

关键词: 甘薯秧, 离散元, 堆积角, 优化设计, 标定

Abstract: Given the lack of accurate parameter values in discrete element simulation of sweet potato seedling mechanized recovery, a direct measurement and virtual calibration method was used to study the Discrete Element Method (DEM) simulation parameters of broken sweet potato stems and leaves. The intrinsic parameters, collision recovery coefficient and static friction coefficient of broken seedlings were acquired by physical experiments. Different parameter combinations were designed for DEM simulation. The intrinsic parameters of sweet potato leaves and other unmeasurable DEM simulation parameters were determined by stacking angle optimization simulation. Plackett-Burman test shows that the static friction coefficients of stem-stem and stem-steel and the rolling friction coefficients of stem-stem and stem-leaf all significantly influence the accumulation angle. The parameters that significantly influence the stacking angle of broken seedlings were sent to steepest ascent test and Box-Behnken test. The average stacking angle of 40.51° and the relative error of 0.972% indicate it feasible to calibrate DEM parameters by physical test and optimization simulation and the calibrated parameters can be used in DEM simulation of broken sweet potato stems and leaves.

Key words: sweet potato seedlings, discrete element method, accumulation angle, optimal design, calibration

中图分类号:

S225.8

穆桂脂, 亓协腾, 张万枝, 吕钊钦, 张婷婷, 王姝文. 碎甘薯秧离散元仿真参数测量与标定^*[J]. 中国农机化学报, 2021, 42(11): 72-79.

Mu Guizhi, Qi Xieteng, Zhang Wanzhi, Lü Zhaoqin, Zhang Tingting, Wang Shuwen. Parameter measurement and calibration in discrete element simulation of broken sweet potato seedlings[J]. Journal of Chinese Agricultural Mechanization, 2021, 42(11): 72-79.

参考文献

[1] Kakahy A, Ahmad D, Akhir M D, et al. Effects of rotary mower blade cutting angles on the pulverization of sweet potato vine [J]. Agriculture & Agricultural Science Procedia, 2014, 2: 95-101.
[2] Zhao D, Gao Z. Research on the development in the sweet potato stem leaves treatment and harvesting machines at home and abroad [J]. Agricultural Science & Technology and Equipment, 2012, 216(6): 19-20.
[3] Mu G Z, Xin Q Q, Xuan G T, et al. Design and experiment of knife roller and throwing device for sweet potato vine recycling machine [J]. Transactions of the Chinese Society for Agricultural Machinery, 2019, 50(12): 53-62.
[4] Boac J M, Casada M E, Maghirang R G, et al. Material and interaction properties of selected grains and oilseeds for modeling discrete particles [J]. Transactions of the ASABE, 2010, 53(4): 1201-1216.
[5] Ucgul M, Fielke J M, Saunders C. Three-dimensional discrete element modelling of tillage: Determination of a suitable contact model and parameters for a cohesionless soil [J]. Biosystems Engineering, 2014, 121: 105-117.
[6] Leblicq T, Smeets B, Vanmaercke S, et al. A discrete element approach for modelling bendable crop stems [J]. Computers & Electronics in Agriculture, 2016, 124: 141-149.
[7] Martin C L, Bouvard D, Shima S. Study of particle rearrangement during powder compaction by the discrete element method [J]. Journal of the Mechanics and Physics of Solids, 2003, 51(4): 667-693.
[8] Józef, Horabik, Marek, et al. Parameters and contact models for DEM simulations of agricultural granular materials: A review [J]. Biosystems Engineering, 2016, 147: 206-225.
[9] Tsa B, Smh A, Ha A, et al. The effect of particle shape on porosity of swelling granular materials: Discrete element method and the multi-sphere approximation [J]. Powder Technology, 2020, 360: 1295-1304.
[10] Grima A P, Wypych P W. Development and validation of calibration methods for discrete element modelling [J]. Granular Matter, 2011, 13(2): 127-132.
[11] González-Montellano C, Fuentes J M, Ayuga-Téllez E, et al. Determination of the mechanical properties of maize grains and olives required for use in DEM simulations [J]. Journal of Food Engineering, 2012, 111(4): 553-562.
[12] Feng J X, Lin J, Li S Z, et al. Calibration of discrete element parameters of particle in rotary solid state fermenters [J]. Transactions of the Chinese Society of Agricultural Machinery, 2015, 46(3): 208-213.
[13] Santos K G, Campos A, Oliveira O S, et al. Dem simulations of dynamic angle of repose of acerola residue: A parametric study using a response surface technique [J]. Blucher Chemical Engineering Proceedings, 2015, 1(2): 11326-11333.
[14] Lee S, Park J. Standardized friction experiment for parameter determination of discrete element method and its validation using angle of repose and hopper discharge [J]. Multiscale Science and Engineering, 2019, 1(3): 247-255.
[15] Huang X M, Zha X T, Pan H B, et al. Measurement and analysis of rapeseeds' restitution coefficient in point-to-plate collision model [J]. Transactions of the Chinese Society of Agricultural Engineering, 2014, 30(24): 22-29.
[16] Lu F Y, Ma X, Tan S Y, et al. Simulative calibration and experiment on main contact parameters of discrete elements for rice bud seeds [J]. Transactions of the Chinese Society for Agricultural Machinery, 2018, 49(2): 93-99.
[17] Jia F G, Han Y L, Liu Y, et al. Simulation prediction method of repose angle for rice particle materials [J]. Transactions of the Chinese Society of Agricultural Engineering, 2014, 30(11): 254-260.
[18] Lenaerts B, Aertsen T, Tijskens E, et al. Simulation of grain-straw separation by discrete element modeling with bendable straw particles [J]. Computers and Electronics in Agriculture, 2014, 101: 24-33.
[19] Liao Y T, Liao Q X, Zhou Y, et al. Parameters calibration of discrete element model of fodder rape crop harvest in bolting stage [J]. Transactions of the Chinese Society for Agricultural Machinery, 2020, 51(6): 73-82.

碎甘薯秧离散元仿真参数测量与标定^*

Parameter measurement and calibration in discrete element simulation of broken sweet potato seedlings

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