Szczegóły publikacji
Opis bibliograficzny
Regolith analogs analysis through DEM: a focus on repose angle test / Przemysław Młynarczyk, Adam KOLUSZ, Alberto GALLINA // W: KGK 2024 : selected proceedings of the 7th Space resources conference : [Kraków, Poland, May 23th–May 24th, 2024] / eds. Michał Lupa, Tadeusz Uhl, Jakub Staszel, Karolina Pargieła, Anna Malczewska. — Cham : Springer Nature Switzerland, cop. 2025. — (Springer Aerospace Technology ; ISSN 1869-1730). — Softcover ISBN 978-3-031-91229-0. — ISBN: 978-3-031-91226-9; e-ISBN: 978-3-031-91227-6. — S. 67–76. — Bibliogr., Abstr. — Publikacja dostępna online od: 2025-08-26
Autorzy (3)
- Młynarczyk Przemysław
- AGHKolusz Adam
- AGHGallina Alberto
Dane bibliometryczne
| ID BaDAP | 161805 |
|---|---|
| Data dodania do BaDAP | 2025-09-03 |
| DOI | 10.1007/978-3-031-91227-6_7 |
| Rok publikacji | 2025 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Springer |
| Czasopismo/seria | Springer Aerospace Technology |
Abstract
In the search for low-cost and effective methods to analyze the interaction of machines with extraterrestrial soils such as lunar regolith, scientists are using the discrete element method (DEM) to represent the behavior of these soils. The close-to-physics modelling approach of DEM allows one to gain much insight into the mechanical behavior of the regolith. Nevertheless, the parameters of DEM models are to be tuned by comparing numerical outcomes with experimental results. For this purpose, the repose angle tests (RAT) can be used. The RAT consist of dropping soil on a horizontal plate from a funnel located above it. Although the RAT are simple to execute, the cohesion of the regolith makes the piling up process irregular and difficult to characterize. Therefore, the calibration of DEM parameters based on RAT experiments requires an in-depth examination of the formation of the soil heap and how this process can be reliably simulated using DEM. Within this framework, we investigate in this work the influence of several modeling factors that we expect to affect the angle of repose estimate in a RAT simulation. These factors are: (i) The variation of model parameters representing fundamental mechanical properties of the regolith; (ii) The employment of two different modeling approaches for the particle generation and flow processes; (iii) The utilization of a different computing machine with different solver’s precision; (iv) The inherent variability resulting from replicating a simulation without changing its parameters’ configuration. The analysis evidences that the first two factors have large influence on the repose angle estimates, when statistically compared with the other factors.
