|Table of Contents|

Parameter Optimization and Validation of Soybean Cell Wheel Seeding Plate Type-hole Based on EDEM(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2016年05期
Page:
830-839
Research Field:
Publishing date:

Info

Title:
Parameter Optimization and Validation of Soybean Cell Wheel Seeding Plate Type-hole Based on EDEM
Author(s):
DUN Guo-qiang;  CHEN Hai-tao;  ZHA Shao-hui
（Engineering College, Northeast Agricultural University, Harbin 150030, China）
Keywords:
Agricultural machinery;  Seed;  Computer simulation;  Soybean;  Type-hole;  Parameter optimization;  Validation
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2016.05.0830
Abstract:
At present, varieties adaptability is the key problem of soybean breeding special seed metering device technology research, the main problem is that seeding plate how to adapt difference of measurement and shape of different soybean species.It is very important to construct precision model between unknown parameters such as type-hole diameter and filling chamfer and known parameters such as seed hundred-grain weight and average diameter.Based on Dongnong 52 physical parameters and theory analysis, acquired each filling state’s soybean seed’s type-hole average diameter ratio range is 1.43-1.87 EDEM simulation model of soybean breeding plug type metering device in district was established, the type hole average diameter ratio and filling chamfer was selected as factors, seed missing rate and seed re-filling rate was selected as indexes, two factors and five levels second order regression current rotation design experiment was done, test index′s mathematical model has been built, variance analysis of test results indicate that, for seed missing rate, average diameter ratio is very significant P＜0.01, filling chamfer is significant 0.01＜P＜0.05, for seed re-filling rate, type hole average diameter ratio is very significant P＜0.01, filling chamfer has a certain influence, but is not significant 0.05＜P＜0.1 Seed missing rate decreased and seed re-filling rate increased with type-hole average diameter ratio’s increasing, seed missing rate decreased and then increased with filling chamfer’s increasing.The optimal structure parameters of seeding plate’s type-hole was that type hole average diameter ratio was 1.64 and filling chamfer was 1.54 mm, seed missing rate was 4.95% and seed re-filling rate was 6.49%, the metering device had the best working performance. In order to verify optimal type-hole parameters, seed metering device performance contrast test has been done, the results indicated that the seed metering device with optimal parameter had the best working performance. Meanwhile, the research provides a practical new method for design for seeding plate hole of other crops.

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Last Update: 2016-09-25