Analysis of the resistance frame of the equipment for opening and compartmentalizing watering furrows, using 3D finite elements

Petru Cardei,Ștefan-Sorin Biriș,Sebastian Muraru,Marius Oprescu,Nicolae Constantin,G.P Negreanu,M Tazerout,C Ertekin,N.V Vlăduţ

doi:10.1051/e3sconf/202128603009

Abstract

The proposed article sets out the results of the finite element structural analysis for the open and compartmentalised watering furrow equipment (OCWFE). It uses a 3D structural model with 3D finite elements. The analysis set out in the article is made in order to determine the field of relative displacement and equivalent stress in the load-bearing structure of the OCWFE. The structural model is generated in CAD-CAM. For the structural analysis, it is necessary the CAE model, which is obtained from the CAD-CAM model, mainly by eliminating gaps and interferences, but also by the techniques of realizing the contact between the components of the assembly and a careful mashing of the structure. The structural model thus created is supported and loaded in accordance with the experimental results from the literature. The relative displacement field and the equivalent stress field within the resistance frame of the OCWFE is obtained following the linear static analysis. The field of relative displacements is used to assess the effects on the quality of the work performed. The equivalent stress field is used to estimate the safety factor of the structure, by reference to the flow stress of the material from which the structure is built.

Highlights

The complexity of agricultural machines generates very varied requirements on their resistance frames
The analysis presented in this paper is only a simple application of linearly elastic static analysis for the frame of a small dimension machine with precise loading points
The important results retained from the elastic-linear static analysis of the open and compartmentalised watering furrow equipment (OCWFE) structural model, using the finite element method, are the fields of the relative displacement, the strain, and Cauchy stress

Summary

Introduction

The complexity of agricultural machines generates very varied requirements on their resistance frames (load-bearing structures). A very important problem of load-bearing structures is the achievement of the high security of human personnel working on agricultural machinery, its protection even in case of serious accidents. For these reasons, the design of load-bearing structures of agricultural machinery is difficult enough to require the help of specialized tools for drawing, calculation and simulation. The works [3,4,5,6,7,8,9,10,11,12,13,14] use 3D finite element analysis for linear-elastic static analysis, implicitly elementary analysis of the strength of structures. Research on the testing of agricultural equipment in real field conditions was carried out by [22, 24, 28], simulation by finite element analysis (FEM) [19, 23, 26, 27], on special installations / test stands in regime simulated and accelerated [21, 25, 26] or theoretical research [20], to identify and develop the most modern constructive solutions [29], similar to those carried out worldwide

Methods

Results

Discussion

Conclusion