1. Wear simulation of the conveyor belt transfer chute using the DEMTone Lerher, Žan Grum, Marko Motaln, Matej Zadravec, 2024, izvirni znanstveni članek Opis: This paper presents a wear simulation-based performance evaluation of the conveyor belt transfer chute using the DEM (Discrete Element Method). Compared to known analytical and empirical wear models, DEM simulation can significantly increase the performance of wear analysis by enabling the analysis and optimization of highly complex geometries of material handling systems such as conveyor belt transfer chutes. Only the correct design of the conveyor belt transfer chute has the potential to significantly extend its service life, resulting in considerable cost savings. Based on the parametric analysis of different angles and radius in the upper head and lower section of the transfer chute, a new geometry of the transfer chute was proposed. The wear depth of the new conveyor belt transfer chute is compared with the wear resistant and low-carbon steel of the transfer chute along with the moderate and relatively high values of the solid granules mass flow. The results show that the wear depth of the transfer chute can be significantly reduced by using the wear-resistant steel compared to the low-carbon steel, which is significantly evident in high throughput rates of the solid granules mass flow.
Ključne besede: bulk material flow, Discrete Element Method (DEM), transfer chute wear simulation, archard and relative wear, performance analysis
Objavljeno v DKUM: 10.03.2025; Ogledov: 0; Prenosov: 11
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3. Računalniško simuliranje postopka kovanjaJanez Stupan, Iztok Potrč, 2000, strokovni članek Opis: V prispevku je obravnavano tridimenzionalno računalniško simuliranje procesa kovanja z računalniškim programom MSC/SuperForge. Kovanje je izrazit proces tridimenzionalne deformacije, med katerim se stalno spreminjajo robni pogoji. Začetna oblika je v večini primerov preprosta, končna oblika pa je lahko zelo zahtevna in se doseže s preoblikovanjem v več stopnjah. Rezultati simuliranja so: deformirana oblika, temperaturno polje, polje toka materiala, tlaka, dejanske napetosti, dejanskih plastičnih deformacij itn.
Ključne besede: forging, deformation, finite volume method, material flow
Objavljeno v DKUM: 10.07.2015; Ogledov: 1463; Prenosov: 70
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4. Computer-aided analysis of the forging processMatjaž Šraml, Janez Stupan, Iztok Potrč, Janez Kramberger, 2004, izvirni znanstveni članek Opis: This paper presents computer simulation of the forging process using the finite volume method (FVM). The process of forging is highly non-linear, where both large deformations and continuously changing boundary conditions occur. In most practical cases, the initial billet shape is relatively simple, but the final shape of the end product is often geometrically complex, to the extent that it is commonly obtained using multiple forming stages. Examples of the numerical simulation of the forged pieces provided were created using Msc/SuperForge computer code. The main results of the analysis are deformed shape, temperature, pressure, effective plastic strain, effective stress and forces acting on the die.
Ključne besede: forging, computer simulation, finite volume method, deformation, stresses, material flow, industrial applications
Objavljeno v DKUM: 01.06.2012; Ogledov: 2169; Prenosov: 114
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