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Simulating evolving surfaces due to wear in granular processes

Bisschop, J.W. (2024) Simulating evolving surfaces due to wear in granular processes.

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Abstract:Granular materials are used in many industries and often the machinery will wear down significantly over time. On time inspections are needed to prevent catastrophic failure, but these are often costly due to hard to reach places and the need to shut down (parts of) a continuous production line. Particle simulations have been proven successful in studying granular materials. This project uses the Discrete Element Method (DEM) to simulate granular flow and actively evolves surfaces to account for the wear caused by the particles flowing over it. This ‘active feedback’ is important, as it can impact the granular flow and in turn the production process. Furthermore, it can cause the wear to increase, decrease, or start at areas otherwise unaffected. Two types of evolvable surfaces have been implemented; one using NURBS and one using a mesh of triangles. NURBS turned out to be less applicable and only some quasi-2D results were obtained. Triangles meshes were successful in simulating the wear in all directions and showed promising results. The wear was visually comparable to that of real life, with higher impact areas being worn down more. The amount of wear relative to the wear coefficient is less for higher wear coefficients.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Link to this item:https://purl.utwente.nl/essays/103812
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