Journal of Intelligent Agricultural Mechanization ›› 2025, Vol. 6 ›› Issue (2): 69-78.DOI: 10.12398/j.issn.2096-7217.2025.02.006
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LUAN Yuhang1(), QIAN Yuxing1, GAO Min1, WANG Mingyu1, LI Xiuchen1,2,3, ZHANG Hanbing1,2,3(
)
Received:
2025-03-03
Revised:
2025-04-03
Online:
2025-05-15
Published:
2025-05-20
Corresponding author:
ZHANG Hanbing
Supported by:
CLC Number:
LUAN Yuhang, QIAN Yuxing, GAO Min, WANG Mingyu, LI Xiuchen, ZHANG Hanbing. Discrete element simulation parameter calibration for smart shellfish seeding devices[J]. Journal of Intelligent Agricultural Mechanization, 2025, 6(2): 69-78.
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URL: http://znhnyzbxb.niam.com.cn/EN/10.12398/j.issn.2096-7217.2025.02.006
材料 | 参数 | 数值 |
---|---|---|
不锈钢板 | 泊松比v 弹性模量E/Pa 密度ρ/(g·cm-3) | 0.3 7.42×1010 7.93 |
EVA | 泊松比v 弹性模量E/Pa 密度ρ/(g·cm-3) | 0.25 1.64×108 0.92 |
Table 1 Contact material physical parameters
材料 | 参数 | 数值 |
---|---|---|
不锈钢板 | 泊松比v 弹性模量E/Pa 密度ρ/(g·cm-3) | 0.3 7.42×1010 7.93 |
EVA | 泊松比v 弹性模量E/Pa 密度ρ/(g·cm-3) | 0.25 1.64×108 0.92 |
编码 | 因素 | ||
---|---|---|---|
e | μn | μr | |
-1 | 0.17 | 0.581 | 0.307 |
0 | 0.305 | 0.628 | 0.380 5 |
1 | 0.44 | 0.675 | 0.454 |
Table 2 Factor level coding table
编码 | 因素 | ||
---|---|---|---|
e | μn | μr | |
-1 | 0.17 | 0.581 | 0.307 |
0 | 0.305 | 0.628 | 0.380 5 |
1 | 0.44 | 0.675 | 0.454 |
序号 | 因素 | Y/% | ||
---|---|---|---|---|
e | μn | μr | ||
1 | 0.17 | 0.628 | 0.307 | 3.18 |
2 | 0.44 | 0.628 | 0.454 | 10.97 |
3 | 0.17 | 0.628 | 0.454 | 10.69 |
4 | 0.305 | 0.581 | 0.307 | 4.62 |
5 | 0.305 | 0.628 | 0.380 5 | 9.51 |
6 | 0.305 | 0.628 | 0.380 5 | 10.54 |
7 | 0.44 | 0.628 | 0.307 | 9.71 |
8 | 0.44 | 0.581 | 0.380 5 | 9.11 |
9 | 0.305 | 0.675 | 0.307 | 9.69 |
10 | 0.17 | 0.581 | 0.380 5 | 4.25 |
11 | 0.305 | 0.628 | 0.380 5 | 9.37 |
12 | 0.44 | 0.675 | 0.380 5 | 10.98 |
13 | 0.305 | 0.628 | 0.380 5 | 10.67 |
14 | 0.17 | 0.675 | 0.380 5 | 10.17 |
15 | 0.305 | 0.581 | 0.454 | 10.58 |
16 | 0.305 | 0.628 | 0.380 5 | 10.51 |
17 | 0.305 | 0.675 | 0.454 | 12.27 |
Table 3 Scheme and results of three-factor and three-level orthogonal experiment
序号 | 因素 | Y/% | ||
---|---|---|---|---|
e | μn | μr | ||
1 | 0.17 | 0.628 | 0.307 | 3.18 |
2 | 0.44 | 0.628 | 0.454 | 10.97 |
3 | 0.17 | 0.628 | 0.454 | 10.69 |
4 | 0.305 | 0.581 | 0.307 | 4.62 |
5 | 0.305 | 0.628 | 0.380 5 | 9.51 |
6 | 0.305 | 0.628 | 0.380 5 | 10.54 |
7 | 0.44 | 0.628 | 0.307 | 9.71 |
8 | 0.44 | 0.581 | 0.380 5 | 9.11 |
9 | 0.305 | 0.675 | 0.307 | 9.69 |
10 | 0.17 | 0.581 | 0.380 5 | 4.25 |
11 | 0.305 | 0.628 | 0.380 5 | 9.37 |
12 | 0.44 | 0.675 | 0.380 5 | 10.98 |
13 | 0.305 | 0.628 | 0.380 5 | 10.67 |
14 | 0.17 | 0.675 | 0.380 5 | 10.17 |
15 | 0.305 | 0.581 | 0.454 | 10.58 |
16 | 0.305 | 0.628 | 0.380 5 | 10.51 |
17 | 0.305 | 0.675 | 0.454 | 12.27 |
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 |
---|---|---|---|---|---|
模型 | 107.67 | 9 | 11.96 | 43.18 | <0.000 1 |
e | 19.47 | 1 | 19.47 | 70.27 | <0.000 1 |
μn | 25.49 | 1 | 25.49 | 92.00 | <0.000 1 |
μr | 38.63 | 1 | 38.63 | 139.43 | <0.000 1 |
eμn | 4.10 | 1 | 4.10 | 14.80 | 0.006 3 |
eμr | 9.77 | 1 | 9.77 | 35.25 | 0.000 6 |
μnμr | 3.33 | 1 | 3.33 | 12.02 | 0.010 4 |
e2 | 5.15 | 1 | 5.15 | 18.60 | 0.003 5 |
μn2 | 0.628 2 | 1 | 0.628 2 | 2.27 | 0.175 9 |
μr2 | 0.596 1 | 1 | 0.596 1 | 2.15 | 0.185 9 |
失拟项 | 0.373 9 | 3 | 0.124 6 | 0.318 4 | 0.812 9 |
误差 | 1.57 | 4 | 0.391 4 | ||
总和 | 109.61 | 16 |
Table 4 Analysis of variance of experimental results
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 |
---|---|---|---|---|---|
模型 | 107.67 | 9 | 11.96 | 43.18 | <0.000 1 |
e | 19.47 | 1 | 19.47 | 70.27 | <0.000 1 |
μn | 25.49 | 1 | 25.49 | 92.00 | <0.000 1 |
μr | 38.63 | 1 | 38.63 | 139.43 | <0.000 1 |
eμn | 4.10 | 1 | 4.10 | 14.80 | 0.006 3 |
eμr | 9.77 | 1 | 9.77 | 35.25 | 0.000 6 |
μnμr | 3.33 | 1 | 3.33 | 12.02 | 0.010 4 |
e2 | 5.15 | 1 | 5.15 | 18.60 | 0.003 5 |
μn2 | 0.628 2 | 1 | 0.628 2 | 2.27 | 0.175 9 |
μr2 | 0.596 1 | 1 | 0.596 1 | 2.15 | 0.185 9 |
失拟项 | 0.373 9 | 3 | 0.124 6 | 0.318 4 | 0.812 9 |
误差 | 1.57 | 4 | 0.391 4 | ||
总和 | 109.61 | 16 |
接触类型 | 碰撞恢复系数 | 静摩擦系数 | 滚动摩擦系数 |
---|---|---|---|
贝苗—贝苗 | 0.170 | 0.620 | 0.313 |
贝苗—不锈钢板 | 0.128 | 0.323 | 0.177 |
贝苗—EVA | 0.339 | 0.538 | 0.205 |
Table 5 Calibration parameter summary
接触类型 | 碰撞恢复系数 | 静摩擦系数 | 滚动摩擦系数 |
---|---|---|---|
贝苗—贝苗 | 0.170 | 0.620 | 0.313 |
贝苗—不锈钢板 | 0.128 | 0.323 | 0.177 |
贝苗—EVA | 0.339 | 0.538 | 0.205 |
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