Strength Calculation Method of Agricultural Machinery Structure using Finite Element Analysis

Abstract

Analyzing agricultural machinery strength through Finite Element Analysis (FEA) ensures robust design and performance. This method evaluates structural integrity, enhancing reliability and efficiency in agricultural operations. This paper presents a comprehensive finite element method (FEM) analysis focused on assessing the structural strength of a 3-point cultivator outfitted with 7 tynes. Cultivators hold pivotal significance in soil preparation, a foundational aspect of agricultural operations. The principal aim of this analysis is to pinpoint potential failure zones within the cultivator tynes under diverse loading conditions, particularly across varying speeds in medium clay and sandy soil. Anecdotal evidence suggests that domestically manufactured cultivators often exhibit structural deficiencies leading to failures at multiple junctures after just one season of operation. To address this challenge, we constructed a detailed CAD model of the time using Siemens NX software. Subsequent FEM analysis, conducted via ANSYS software, facilitated the exploration of stress distributions and deformation characteristics. Our investigation unveiled the maximal and minimal principal stresses alongside total deformation experienced by the tynes. Notably, while the maximum stress approached the material's yield point, it consistently remained within acceptable thresholds, signifying that the resultant deformation did not induce failure. This study underscores the pivotal role of employing FEM analysis in both the design and assessment phases of agricultural machinery development, thereby augmenting durability and operational efficacy. Ultimately, such initiatives aim to furnish manufacturers with invaluable insights to bolster the structural integrity and longevity of cultivators, fostering enhanced reliability and operational efficiency within the agricultural sector.