High-speed camera-based coefficient of restitution of apple under three-dimensional fruit-to-fruit collision in air for vibration harvesting

Authors

  • Chi Chen College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Ruiyang Wei College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Leilei He College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Man Xia College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Rui Li College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Liling Yang Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830000, China
  • Vladimir Soloviev Department of Data Analysis and Machine Learning, Financial University under the Government of the Russian Federation, Moscow 105187, Russia
  • Anastasia Grecheneva Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Moscow 127434, Russia
  • Ramesh Sahni Agricultural Mechanization Division, ICAR-Central Institute of Agricultural Engineering, Bhopal 462038, Madhya Pradesh, India
  • Yaqoob Majeed Department of Electrical Engineering and Computer Science, University of Wyoming, Laramie, Wyoming 82071, USA
  • Zhenchao Wu School of Engineering, Anhui Agricultural University, Hefei 230036, China
  • Longsheng Fu 1. College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; 8. Shaanxi Agricultural Equipment Engineering Technology Research Center, Yangling 712100, Shaanxi, China

DOI:

https://doi.org/10.25165/ijabe.v18i4.9192

Keywords:

coefficient of restitution, three-dimensional displacements, fruit damage, image analysis, rotational motion

Abstract

The coefficient of restitution (CoR) is an important parameter for designing vibration-harvesting machinery. There are three main types of fruit-to-fruit collisions during vibration harvesting: collision between fruits collected using a collection device and falling fruits, collision between fruits on branches before being removed, and collision of fruits in the air. The CoR for the first two types of collision was investigated separately using drop and pendulum methods. However, there have been few studies on CoR for the collision of fruits in the air. In this study, a platform was designed to simulate the collision of fruits in the air during vibration harvesting for the ‘Gala’ apple, where influences of collision velocity on CoR were studied. Images from a high-speed camera were processed based on RGB to Lab conversion to extract the bruise surface and calculate the bruise volume. Total bruise volume, the sum of two apple bruise volumes, was calculated and analyzed in relation to the CoR. Results showed that the CoR decreased with collision velocity increasing from 1.0 m/s to 1.4 m/s, where the CoR reached 0.93 or higher when collision velocity was 1.0 m/s, making fruits not bruise, while fruits began to bruise when collision velocity increased from 1.2 m/s. The CoR did not continue to decrease when collision velocity exceeded 1.4 m/s due to rotation. There was little correlation between total bruise volume and the CoR due to the composite motion of fruits in the air, indicating that the CoR may not be an indicator to determine the degree of fruit bruise when the fruit made a composite motion during the collision. Therefore, this research is expected to guide the establishment of a more accurate fruit model to design optimal vibration harvesting machinery. Keywords: coefficient of restitution, three-dimensional displacements, fruit damage, image analysis, rotational motion DOI: 10.25165/j.ijabe.20251804.9192 Citation: Chen C, Wei R Y, He L L, Xia M, Li R, Yang L L, et al. High-speed camera-based coefficient of restitution of apple under three-dimensional fruit-to-fruit collision in air for vibration harvesting. Int J Agric & Biol Eng, 2025; 18(4): 248–253.

Author Biography

Ruiyang Wei, College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China

Editor-in-Cheif of Computers and Electronics in Agriculture Professor, Northwest A&F University

References

Wang Z H, Xun Y, Wang Y K, Yang Q H. Review of smart robots for fruit and vegetable picking in agriculture. Int J Agric & Biol Eng, 2022; 15(1): 33–54.

Zheng, Z, Hu, Y, Guo, T, Qiao, Y, He, Y, Zhang, Y, Huang, Y. AGHRNet: An attention ghost-HRNet for confirmation of catch‐ and‐ shake locations in jujube fruits vibration harvesting. Computers and Electronics in Agriculture, 2023; 210: 107921.

Zhang Z, Zhang Z H, Wang X M, Liu H, Wang Y J, Wang W J. Models for economic evaluation of multi-purpose apple harvest platform and software development. Int J Agric & Biol Eng, 2019; 12(1): 74–83.

He L Y, Liu X C, Du X Q, Wu C Y. In-situ identification of shaking frequency for adaptive vibratory fruit harvesting. Computers and Electronics in Agriculture, 2020; 170: 105245.

Jia N, Zhang H Y, Bo J C, Liu J Q. Study on walnut dynamic response to different excitations. Computers and Electronics in Agriculture, 2025; 236: 110432. doi: 110432. 10.1016/j.compag.2025.110432.

Peng J, Xie H Q, Feng Y L, Fu L S, Sun S P, Cui Y J. Simulation study of vibratory harvesting of Chinese winter jujube (Zizyphus jujuba Mill. cv. Dongzao). Computers and Electronics in Agriculture, 2017; 143: 57–65.

Wang W Z, Lu H Z, Zhang S M, Yang Z. Damage caused by multiple impacts of litchi fruits during vibration harvesting. Computers and Electronics in Agriculture, 2019; 162: 732–738.

Zhou J, Xu L Y, Zhang A Q, Hang X C. Finite element explicit dynamics simulation of motion and shedding of jujube fruits under forced vibration. Computers and• Electronics in Agriculture, 2022; 198: 107009.

Yu Z Y, Hu Z C, Peng B L, Gu F W, Yang L, Yang M, et al. Experimental determination of restitution coefficient of garlic bulb based on high-speed photography. Int J Agric & Biol Eng, 2021; 14(2): 81–90.

Zhang B C, Chen X G, Liang R Q, Li J L, Wang X Z, Meng H W, et al. Cotton stalk restitution coefficient determination tests based on the binocular high-speed camera technology. Int J Agric & Biol Eng, 2022; 15(4): 181–189.

Stropek Z, Gołacki K. The effect of drop height on bruising of selected apple varieties. Postharvest Biology and Technology, 2013; 85: 167–172.

Mei, M, Li, J. An overview on optical non-destructive detection of bruises in fruit: Technology, method, application, challenge and trend. Computers and Electronics in Agriculture, 2023; 213: 108195.

Xu, C, Zhang, P, Huang, X, Liu, J, Li, Y. Characterization and evaluation of the viscoelastic models for normal and bruised apple pulp. Computers and Electronics in Agriculture, 2025; 229: 109756.

Pu Y J, Wang S M, Yang F Z, Ehsani R, Zhao L J, Li C S, et al. Recent progress and future prospects for mechanized harvesting of fruit crops with shaking systems. Int J Agric & Biol Eng, 2023; 16(1): 1–13.

Sun, Z, Hu, D, Xie, L, Ying, Y. Detection of early stage bruise in apples using optical property mapping. Computers and Electronics in Agriculture, 2022; 194: 106725.

Wu Z C, Li G, Yang R Z, Fu L S, Li R, Wang S J. Coefficient of restitution of kiwifruit without external interference. Journal of Food Engineering, 2022; 327: 111060.

Fu H, Yang J K, Du W D, Wang W Z, Liu G C, Yang Z. Determination of coefficient of restitution of fresh market apples caused by fruit-to-fruit collisions with a sliding method. Biosystems Engineering, 2022; 224: 183–196.

Holt J E, Schoorl D. Bruising and energy dissipation in apples. Journal of Texture Studies, 2022; 7(4): 421–432.

Stropek Z, Gołacki K. Impact characteristics of pears. Postharvest Biology and Technology, 2019; 147: 100–106.

Van Zeebroeck M, Van Linden V, Darius P, De Ketelaere B, Ramon H, Tijskens E. The effect of fruit properties on the bruise susceptibility of

tomatoes. Postharvest Biology and Technology, 2007; 45(2): 168–175. Ji Z M, Hu S M, Chen Z J, [21] Niu Q H, Wang T H, Wu F Q. Laboratory investigation of the effect of the rotational speed on the coefficient of restitution. Engineering Geology, 2021; 292: 106196.

Dintwa E, Van Zeebroeck M, Ramon H, Tijskens E. Finite element analysis of the dynamic collision of apple fruit. Postharvest Biology Technology, 2008; 49(2): 260–276.

Stropek Z, Gołacki K. A new method for measuring impact related bruises in fruits. Postharvest Biology and Technology, 2015; 110: 131–139. doi: /10.1016/j.postharvbio.2015.07.005.

Dong H, Moys M H. Experimental study of oblique impacts with initial spin. Powder Technology, 2006; 161(1): 22–31.

Pang W, Studman C J, Ward G T. Bruising damage in apple-to-apple impact. Journal of Agricultural Engineering Research, 1992; 52: 229–240.

Li X Y, Wang W. Study on bruises in apple-to-apple impact. Acta Agricu’ lturae Boreali-Occidentalis Sinica, 1995; 23(3): 83–87. (in Chinese)

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Published

2025-08-21

How to Cite

Chen, C., Wei, R., He, L., Xia, M., Li, R., Yang, L., … Fu, L. (2025). High-speed camera-based coefficient of restitution of apple under three-dimensional fruit-to-fruit collision in air for vibration harvesting. International Journal of Agricultural and Biological Engineering, 18(4), 248–253. https://doi.org/10.25165/ijabe.v18i4.9192

Issue

Vol. 18 No. 4 (2025): IJABE

Section

Information Technology, Sensors and Control Systems

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