IDEAS home Printed from https://ideas.repec.org/a/plo/pone00/0255856.html
   My bibliography  Save this article

Study on the drop impact characteristics and impact damage mechanism of sweet potato tubers during harvest

Author

Listed:
  • Guocheng Bao
  • Gongpu Wang
  • Bing Wang
  • Lianglong Hu
  • Xiaowei Xu
  • Haiyang Shen
  • Longlong Ji

Abstract

Collision of falling in the mechanical harvesting process of sweet potato is one of the main causes of epidermal destruction and damage to sweet potato tubers. Therefore, a sweet potato mechanical characteristic test and a full-factor sweet potato drop test were designed. Based on the analysis of the fitting mathematical model, the impact of the drop height, collision material and sweet potato chunk size on the damage of the sweet potato were studied. The mathematical models were established by fitting analysis of the IBM SPSS Statistics 22 software between the drop height and the sweet potato chunk size with each test index (impact force, impact stress, broken skin area and damaged area). The critical epidermal destruction height and the critical damage height of a certain size of sweet potato when it collides with a collision material can be calculated by the mathematical model, and the critical epidermal destruction mass and critical damage mass of sweet potato when it falls from a certain height and collides with a collision material can also be calculated. Then a series of critical values (including critical epidermal destruction force value, critical epidermal destruction impact stress, critical damage force value, critical damage impact stress) of mechanical properties of sweet potato were obtained. The results show that the impact deformation of sweet potato includes both elastic and plastic ones, and has similar stress relaxation characteristics. The critical damage impact stress of sweet potato is that the average value of the impact stress on the contact surface is less than it’s Firmness. The results provided a theoretical basis for understanding the collision damage mechanism of sweet potato and how to reduce the damage during harvest.

Suggested Citation

  • Guocheng Bao & Gongpu Wang & Bing Wang & Lianglong Hu & Xiaowei Xu & Haiyang Shen & Longlong Ji, 2021. "Study on the drop impact characteristics and impact damage mechanism of sweet potato tubers during harvest," PLOS ONE, Public Library of Science, vol. 16(8), pages 1-26, August.
  • Handle: RePEc:plo:pone00:0255856
    DOI: 10.1371/journal.pone.0255856
    as

    Download full text from publisher

    File URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0255856
    Download Restriction: no

    File URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0255856&type=printable
    Download Restriction: no

    File URL: https://libkey.io/10.1371/journal.pone.0255856?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Xinwu Du & Jin Liu & Yueyun Zhao & Chenglin Zhang & Xiaoxuan Zhang & Yanshuai Wang, 2024. "Design and Test of Discrete Element-Based Separation Roller Potato–Soil Separation Device," Agriculture, MDPI, vol. 14(7), pages 1-19, June.
    2. Jiwen Peng & Haiyang Shen & Gongpu Wang & Zhilong Zhang & Baoliang Peng & Guangyu Xue & Sen Huang & Wenhao Zheng & Lianglong Hu, 2024. "Experiment and Analysis of Physical Properties of Sweet Potato Varieties at Different Harvesting Periods," Agriculture, MDPI, vol. 14(9), pages 1-16, September.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:plo:pone00:0255856. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: plosone (email available below). General contact details of provider: https://journals.plos.org/plosone/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.