Work

Dem-based Modeling and Contact Parameter Calibration of Hazelnuts

Year: 2025

Type: article

Abstract: To address the lack of contact parameters in designing hazelnut harvesting machinery, this study measured the physical properties of hazelnuts through experiments and obtained a 3D model via scanning. A DEM model was established accordingly. Contact parameters between hazelnuts and steel were calibrated through physical and simulated tests, yielding a restitution coefficient of 0.31, static friction of 0.39, and rolling friction of 0.04. Using the relative error of repose angle as the response variable and hazelnut–hazelnut contact parameters as factors, a quadratic regression model was developed by steepest ascent and Central Composite tests. The optimal contact parameters of hazelnuts were 0.11 (restitution), 0.21 (static friction), and 0.04 (rolling friction), with a 1.84% error.

Source: INMATEH Agricultural Engineering

DOI: 10.35633/inmateh-76-71

Authors: Chun WANG, Hailin KUI, Xiaoli WU, Yongchao SHAO, Minggang FU

Institutions: Jilin University, Northwest A&F University

Language: English

Topic: Agricultural Engineering and Mechanization

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Zero hunger

Open Access status: diamond

Funders: Natural Science Foundation of Jilin Province, People's Government of Jilin Province