Application of Finite Element Analysis in Modeling of Bionic Harrowing Discs

Abstract

Ansys software was used to carry out three-dimensional finite element analysis (FEA) for biomimetic design of harrowing discs based on the body surface morphology of soil burrowing animals like dung beetle (Dicranocara deschodt) which have non-smooth units such as convex domes and concave dips. The main objective was to find out the effects of different biomimetic surface designs on reducing soil resistance hence the horizontal force acting on the harrowing disc during soil deformation was determined. In this FEA, soil deformation was based on the Drucker–Prager elastic–perfectly plastic model which was applied only at the lowest disc harrowing speed of 4.4 km/h which is within the limits of model. The material non-linearity of soil was addressed using an incremental technique and inside each step, the Newton–Raphson iteration method was utilized. The model results were analyzed and then summation of horizontal forces acting on the soil-disc interface was also done. An experiment was then conducted in an indoor soil bin to validate the FEA results. The FEA results are generally in agreement with those of the indoor experiment with a difference of less than or equal to the acceptable 10% with an average difference of 4%. Overall, convex bionic units gave the highest resistance reduction of 19.5% from 1526.87 N to 1228.38 N compared to concave bionic units.

The results of implemented researches on substantiation the parameters of the disc plougher

“…[16]. Ch.Benard and others had implemented the design and researches of bionic discs and convex bionic surfaces that gave highest resistance reduction reaching a maximum of 19.5% reduction for sample 9 in agreement with some past researches [17][18][19][20][21][22][23].…”

Desain dan Analisis Frekuensi Natural Rangka Mesin Penyiang Gulma Menggunakan Metode Finite Element Analysis

“…To reduce expenses caused by mistakes in the product design drawing process, the primary step in the machine production process is to create a design using CAD technology (Cekus et al, 2019;Chirende et al, 2019). Design optimization can also reduce design flaws (Vegad & Yadav, 2018).…”

Structural Analysis of the Differential Chassis for Development of Paddy Weeder Using Finite Element Analysis

“…• Gear type: Cross gear • Gear ratio: 1:10 "Prior to manufacture the machine, a design must be created using computer design technology (CAD/CAM). This technology can reduce major expenses associated with design flaws" [2,3]. "Design optimization can reduce manufacturing errors and can lengthen the product's service life" [4].…”