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Research and Validation of Vibratory Harvesting Device for Red Jujube Based on ADAMS and ANSYS

Author

Listed:
  • Yaohua Hu

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

  • Junzhe Feng

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

  • Yichen Qiao

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China)

  • Chenhao Yu

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

  • Wenkai Luo

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

  • Kaili Zhang

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China)

  • Runfeng Liu

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

  • Runzhe Han

    (College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China)

Abstract

The mechanization of red jujube industry is a high-potential agricultural research field in China. In this study, a vibration harvesting device has been developed for jujube trees that features adjustable vibration frequency and amplitude. The device is designed to make jujube trees vibrate with varying diameters by utilizing different vibration frequencies and amplitudes according to the tree’s size such that jujubes can be harvested efficiently. The study completed the structural design of excitation and fruit collection mechanisms based on the working principle of vibration harvesting. The red jujube excitation mechanism was dynamically simulated using ADAMS, and it was found that the acceleration at the end of the vibration rod of the mechanism had a tendency to sharply increase and decrease, which was conducive to the vibration shedding of red jujube. A collision model between the red jujubes and the fruit collection umbrella was constructed, and the fruit collection mechanism was structurally simulated using ANSYS. The tests showed that the device effectively harvested red jujubes from nine types of jujube trees with diameter ranges of 29.15–31.26 mm, 49.56–52.34 mm, and 65.23–73.25 mm. The average net harvesting rates were 93.98%, 94.71%, and 94.33%, and the average fruit collection efficiencies were 95.78%, 89.43%, and 85.04%, respectively. These results demonstrate the effectiveness of the excitation and collection mechanisms and provide a theoretical basis for the development of vibratory harvesting devices for red jujubes.

Suggested Citation

  • Yaohua Hu & Junzhe Feng & Yichen Qiao & Chenhao Yu & Wenkai Luo & Kaili Zhang & Runfeng Liu & Runzhe Han, 2023. "Research and Validation of Vibratory Harvesting Device for Red Jujube Based on ADAMS and ANSYS," Agriculture, MDPI, vol. 13(7), pages 1-23, June.
  • Handle: RePEc:gam:jagris:v:13:y:2023:i:7:p:1334-:d:1183439
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    References listed on IDEAS

    as
    1. Jian Zhao & Satoru Tsuchikawa & Te Ma & Guangrui Hu & Yun Chen & Zhiwei Wang & Qingyu Chen & Zening Gao & Jun Chen, 2021. "Modal Analysis and Experiment of a Lycium barbarum L. Shrub for Efficient Vibration Harvesting of Fruit," Agriculture, MDPI, vol. 11(6), pages 1-14, June.
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    Cited by:

    1. Jie Ling & Man Gu & Weiwen Luo & Haiyang Shen & Zhichao Hu & Fengwei Gu & Feng Wu & Peng Zhang & Hongbo Xu, 2024. "Simulation Analysis and Test of a Cleaning Device for a Fresh-Peanut-Picking Combine Harvester Based on Computational Fluid Dynamics–Discrete Element Method Coupling," Agriculture, MDPI, vol. 14(9), pages 1-22, September.
    2. Gelton Fernando de Morais & Jenyffer da Silva Gomes Santos & Daniela Han & Luiz Octávio Ramos Filho & Marcelo Gomes Barroca Xavier & Leonardo Schimidt & Hugo Thiago de Souza & Fernanda Ticianelli de C, 2023. "Agricultural Machinery Adequacy for Handling the Mombaça Grass Biomass in Agroforestry Systems," Agriculture, MDPI, vol. 13(7), pages 1-28, July.
    3. Jie Ling & Haiyang Shen & Man Gu & Zhichao Hu & Sheng Zhao & Feng Wu & Hongbo Xu & Fengwei Gu & Peng Zhang, 2024. "The Design and Optimization of a Peanut-Picking System for a Fresh-Peanut-Picking Crawler Combine Harvester," Agriculture, MDPI, vol. 14(8), pages 1-20, August.

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