RESEARCH ON THE IMPACT FORCE FROM THE FILED SURFACE ON  THE FRAME AND HOUSING OF THE PURPLE ONION PLANTING MACHINE

Lê Trung Hậu; Cao Hùng Phi; Nguyễn Thuận Hải Đăng; Nguyễn Thanh Quang

doi:10.34238/tnu-jst.13067

RESEARCH ON THE IMPACT FORCE FROM THE FILED SURFACE ON THE FRAME AND HOUSING OF THE PURPLE ONION PLANTING MACHINE

About this article

Received: 16/06/25 Revised: 21/11/25 Published: 25/11/25

Authors

1. Le Trung Hau, Vinh Long University of Technology Education
2. Cao Hung Phi, Vinh Long University of Technology Education
3. Nguyen Thuan Hai Dang, Vinh Long University of Technology Education
4. Nguyen Thanh Quang , Ha Noi University of Industry

Abstract

The purple onion planting machine is subjected to dynamic loads induced by ground irregularities, resulting in vibrations, stresses, and deformations that impact its durability and operational efficiency. This study analyzes the dynamic forces acting on the machine to optimize its design, enhancing quality and longevity in agricultural production. The evaluation of excitation forces aims to identify structural weaknesses and propose solutions to improve durability and dynamic stability. A 3D model of the machine was developed using Autodesk Inventor Professional, dynamic analysis was performed in Matlab Simulink over a frequency range of 0–150 Hz, and finite element analysis was conducted in Ansys Workbench using the SOLID185 element. Results indicate that at a frequency of 128 Hz, the maximum stress reaches 275 MPa (below the yield strength of 355 MPa), with a maximum deformation of 7.6438 mm at the central region of the frame. Design optimization was achieved by modifying two structural parameters of the beam frame, specifically the shape factor (h/b) of the cross-sectional area, comparing pre- and post-optimization cases. The optimized design significantly reduced stresses and deformations, ensuring safe operation. This study demonstrates that finite analysis element and design optimization enable accurate prediction of structural responses, improving the machine's durability and performance, thereby contributing to sustainable agricultural production.

Keywords

Dynamic load; Finite element analysis; Structural optimization; Agricultural machinery; Vibration analysis

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DOI: https://doi.org/10.34238/tnu-jst.13067

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