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Simulation Analysis and Optimization Design of Paddy Field Mud Spreader Blades for Uniform Dispersion

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  • Jinbo Ren

    (State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, Chongqing 400044, China
    College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

  • Chongcheng Chen

    (College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

  • Difa Bao

    (College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

  • Xinhui Wu

    (Fujian University Engineering Research Center for Modern Agricultural Equipment, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

  • Shuhe Zheng

    (College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

Abstract

To improve the distribution of mud particles collected in the tray during the operation of paddy field mud spreader blades, the optimal combination of parameters for the blades that results in the best uniformity of mud dispersion needs to be identified. In this study, a thorough force analysis was conducted on the spreading process, and computational equations were formulated to describe the motion of mud particles. By utilizing the discrete element simulation technique, a simulation model was developed to accurately represent the intricate interaction between the blades and mud particles. Through the single-factor simulation experiments, the ranges of key parameters such as the rotation radius, bending angle, sub-blade tilt angle, forward velocity, and rotational speed of the blade were determined. A secondary orthogonal rotational combination design was employed to establish a regression prediction model between the non-uniformity of mud dispersion and the key blade parameters. Subsequently, a multivariate single-objective optimization method was used to develop an optimization model for the non-uniformity of mud dispersion. The results indicate that the hierarchical order of factors influencing the non-uniformity of mud dispersion is as follows: rotation radius > rotation speed > bending angle > forward velocity > sub-blade tilt angle. To achieve a minimum spreading non-uniformity of 29.63%, a specific configuration is required, which includes a blade rotation radius of 188 mm, a bending angle of 121°, a sub-blade tilt angle of 30°, a forward velocity of 400 mm/s, and a rotation speed of 191 r/min. Finally, the accuracy of the optimization results was verified by means of bench tests. The research results provide a crucial reference for enhancing the uniformity of mud dispersion in paddy field mud spreader blades.

Suggested Citation

  • Jinbo Ren & Chongcheng Chen & Difa Bao & Xinhui Wu & Shuhe Zheng, 2024. "Simulation Analysis and Optimization Design of Paddy Field Mud Spreader Blades for Uniform Dispersion," Agriculture, MDPI, vol. 14(3), pages 1-20, February.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:3:p:344-:d:1343307
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    References listed on IDEAS

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    1. Yiwen Yuan & Jiayi Wang & Xin Zhang & Shuhong Zhao, 2023. "Effect of Rotary Speed on Soil and Straw Throwing Process by Stubble-Crushing Blade for Strip Tillage Using DEM-CFD," Agriculture, MDPI, vol. 13(4), pages 1-20, April.
    2. Wei Liu & Shijie Tian & Qingyu Wang & Huanyu Jiang, 2023. "Key Technologies of Plug Tray Seedling Transplanters in Protected Agriculture: A Review," Agriculture, MDPI, vol. 13(8), pages 1-19, July.
    3. Wang Yang & Xiong Xiao & Ronghui Pan & Shengyuan Guo & Jian Yang, 2023. "Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage," Agriculture, MDPI, vol. 13(9), pages 1-19, September.
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