Measurement and analysis of restitution coefficient between maize seed and soil based on high-speed photography
Keywords:
maize seed, soil, restitution coefficient, mirror reflection, high-speed photography, measurementAbstract
Abstract: The restitution coefficient is an important elementary physical parameter related to the research and development of agricultural machinery. The kinematic model of maize seed in the falling and impacting processes was developed to measure the restitution coefficient between maize seed and soil. A test bench for measuring the restitution coefficient was designed and built referred to the theory of mirror reflection. The velocities for impacting maize seed were measured and analyzed in a three-dimensional space via high-speed photography, and then restitution coefficients of in different impact conditions were obtained. On this basis, this study took flat dent seed and round seed as samples. Single factor tests were conducted to analyze the influences of these factors on the restitution coefficient. The impact angle, falling height, soil compaction, soil moisture, maize moisture content and different parts of seed were selected as test factors. The corresponding regression equations were obtained by analysis. The results showed that, as the impact angle was bigger than 25°, the restitution coefficient increased with the increase of impact angle. The restitution coefficient had a linear decreasing trend with the increase of falling height. As the soil compaction strength was 200-350 kPa, the restitution coefficient increased with the increase of soil compaction. As the soil compaction strength was larger than 350 kPa, the changing trend of the restitution coefficient was relatively stable. As the soil moisture content was 13.5%-18%, the restitution coefficient decreased with the increase of soil moisture. As the soil moisture content was 18%, the restitution coefficient was the minimum. As the maize moisture content was 11%-16%, the restitution coefficient decreased with the increase of maize moisture content. The rotational motion always occurred in falling process of flat dent seed and round seed. The probabilities of crown part and lateral part of maize seed impacting with soil were the highest, and the restitution coefficient between crown part and soil was higher than that of other parts in the same condition. Keywords: maize seed, soil, restitution coefficient, mirror reflection, high-speed photography, measurement DOI: 10.3965/j.ijabe.20171003.2173 Citation: Wang J W, Tang H, Wang J F, Jiang D X, Li X. Measurement and analysis of restitution coefficient between maize seed and soil based on high-speed photography. Int J Agric & Biol Eng, 2017; 10(3): 102–114.References
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[2] Wang J W, Tang H, Wang J F, Li X, Huang H N. Optimization design and experiment on ripple surface type pickup finger of precision maize seed metering device. Int J Agri & Biol Eng, 2017; 10(1): 61–71.
[3] Wang J W, Tang H, Zhou W Q, Yang W P, Wang Q. Improved design and experiment on pickup finger precision seed metering device. Transactions of the CSAM, 2015; 46(9): 68–76. (in Chinese)
[4] Jia H L, Jiang X M, Yuan H F, Zhuang J, Zhao J L, Guo M Z. Stalk cutting mechanism of no-tillage planter for wide/narrow row farming mode. Int J Agri & Biol Eng, 2017; 10(2): 26–35.
[5] Liao Y T, Wang L, Liao Q X. Design and test of an inside-filling pneumatic precision centralized seed-metering device for rapeseed. Int J Agri & Biol Eng, 2017; 10(2): 56–62.
[6] Zhang X C, Li H W, Du R C, Ma S C, He J, Wang Q J, et al. Effects of key design parameters of tine furrow opener on soil seedbed on soil seeded properties. Int J Agri & Biol Eng, 2016; 9(3): 67–80.
[7] Latosha M G, Balaji G, Sarma V P, Lawrence J. Image analysis measurements of particle restitution coefficient for coal gasification applications. Powder Technology, 2013; 247: 30–43.
[8] Antonio D. Analysis of oblique rebound using a redefinition of the coefficient of tangential restitution coefficient. Mechanics Research Communications, 2013; 54: 35–40.
[9] Yang M J, Li W Q, Li Q D. Experimental research of elastic property of coated rice seed. Journal of Southwest Agricultural University, 2011; 23(1): 87–89. (in Chinese)
[10] Qin Z Y, Zhu Q S. Analysis of impact process model based on restitution coefficient. Journal of Dynamics and Control, 2006; 4(4): 294–298. (in Chinese)
[11] Ren W T, Dong B, Cui H G, Han S, Xiang Q L, Dai L L. Experiment on the motion characteristics of rice seeds after collision with different slopes. Transactions of the CSAE, 2009; 25(7): 254–258. (in Chinese)
[12] Imre B, Räbsamen S, Springman S M. A restitution coefficient of rock materials. Computers and Geosciences, 2008; 34(4): 339–350.
[13] González C M, Fuentes J M, Ayuga-Téllez E, Ayuga F. Determination of the mechanical properties of maize grains and olives required for use in DEM simulations. Journal of Food Engineering, 2012; 111: 553–562.
[14] Li H C, Gao F, Li Y M, Yan J C. Determination of rice grain physical properties. Journal of Agricultural Mechanization Research, 2014; 36(3): 23–27. (in Chinese)
[15] Wang C J, Li Y M, Ma L Z, Ma Z. Experimental study on measurement of restitution coefficient of wheat seeds in collision models. Transactions of the CSAE, 2012; 28(11): 274–278. (in Chinese)
[16] Liu L X, Wang Z W. Dropping impact mechanical characteristic of apple. Transactions of the CSAE, 2007; 23(2): 254–258. (in Chinese)
[17] Zhao J L, Huang D Y, Jia H L, Zhuang J, Guo M Z. Analysis and experiment on cutting performances of high-stubble maize stalks. Int J Agri & Biol Eng, 2017; 10(1): 61–71.
[18] Chen L D, He D. Discussion on the current situation of the planting device and developing direction. Journal of Agricultural Mechanization Research, 2006; 28(2): 16–18. (in Chinese)
[19] He S M, Wu Y, Li X P. Research on restitution coefficient of rock fall. Rock and Soil Mechanics, 2009; 30(3): 263–267. (in Chinese)
[20] Wang J W, Tang H, Wang J F, Shen H G, Feng X, Huang H N. Analysis and experiment of guiding and dropping migratory mechanism on pickup finger precision seed metering device for corn. Transactions of the CSAM, 2017; 48(1): 29–37, 46. (in Chinese)
[21] Lü J Q, Yang Y, Li Z H, Shang Q Q, Li J C, Liu Z Y. Design and experiment of an air-suction potato seed metering device. Int J Agri & Biol Eng, 2016; 9(5): 33–42.
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Published
2017-05-31
How to Cite
Jinwu, W., Han, T., Jinfeng, W., Dongxuan, J., & Xin, L. (2017). Measurement and analysis of restitution coefficient between maize seed and soil based on high-speed photography. International Journal of Agricultural and Biological Engineering, 10(3), 102–114. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2173
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Power and Machinery Systems
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