Methods for Constructing Soil Dynamic Models Under Intelligent Cultivation: Dynamic Interaction Mechanisms Between Farming Tools with Complex Structures and Soil

Wei Song, Lili Ren (), Jingli Wang, Yunhai Ma, Yingjie Guo, Minglei Han and Huaixiang Zhao
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Wei Song: College of Engineering Technology, Jilin Agricultural University, Changchun 130118, China
Lili Ren: Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
Jingli Wang: College of Engineering Technology, Jilin Agricultural University, Changchun 130118, China
Yunhai Ma: Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
Yingjie Guo: College of Engineering Technology, Jilin Agricultural University, Changchun 130118, China
Minglei Han: School of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, China
Huaixiang Zhao: College of Engineering Technology, Jilin Agricultural University, Changchun 130118, China

Agriculture, 2025, vol. 15, issue 13, 1-28

Abstract: A new method for finite element simulation analysis of the interaction between complex structured tillage implements and soil was established in this study. This method accurately analyzes soil fragmentation during subsoiling using tillage tools with complex structures. It also accurately reflects the force on bionic subsoilers during cultivation, the interaction law between the subsoiler and the soil, and the impact of subsoiling operations on the soil properties. Bionic subsoilers were introduced to establish a dynamic analysis model for subsoiling cultivation. The novelty lies in introducing bionic subsoilers inspired by mole claws to reduce draft force and optimize soil failure patterns. Experiments have shown that compared with standard subsoilers, the stress distribution of the bionic subsoiler-H is significantly reduced, with a maximum stress reduction of 52.96%. The stress distribution of the subsoilers after subsoiling cultivation was directly proportional to the wear of the subsoiler, and the draft force of the subsoiler was inversely proportional to the size of the soil block at the front of the subsoiler. Compared with the soil model with a plough layer, the average stress values of the standard subsoiler, bionic subsoiler-H, and bionic subsoiler-C in the models without a plough pan layer were reduced by 13.97%, 6.67%, and 7.1% lower, respectively. Abaqus finite element analysis could not only effectively reflect the actual situation of soil in the field, but also accurately simulate and analyze the effect of soil fragmentation in the subsoiling process via tillage tools with complex structures, providing a digital analysis foundation for the collection of intelligent tillage information.

Keywords: finite element analysis; subsoiling; soil tillage dynamics model; soil failure analysis (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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