Soft tropical fruit assessment based on a non-contact on destructive experimental modal analysis with laser technique

N. Arai, N. Hosoya, I. Kajiwara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Conventional assessment methods of the quality of fruit may not be evaluated to fruit whose acidity or sugar content does not change during ripening after harvest. Therefore, many researchers have studied to examine the firmness of fruit as their ripeness using dynamic characteristics such as natural frequencies or vibration mode shapes because the firmness is strongly correlated to the ripeness. When the target fruit to be assessed is kind of soft tropical fruit such as a mango, etc., it might be difficult for the traditional methods to measure their dynamic characteristics (natural frequencies or vibration mode shapes) without any damages because those fruit have viscoelastic characteristic strongly. In this study, we demonstrated a non-contact and nondestructive vibration test of a mango, a papaya and a dragonfruit based on laser-induced plasma (LIP) shock wave impulse excitation. We conclude that our method can monitor the change of firmness of the soft tropical fruit.

Original languageEnglish
Title of host publicationProceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
EditorsW. Desmet, B. Pluymers, D. Moens, S. Vandemaele
PublisherKU Leuven - Departement Werktuigkunde
Pages917-927
Number of pages11
ISBN (Electronic)9789082893113
Publication statusPublished - 2020
Event2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020 - Leuven, Belgium
Duration: 2020 Sep 72020 Sep 9

Publication series

NameProceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020
Country/TerritoryBelgium
CityLeuven
Period20/9/720/9/9

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

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