Fast and Accurate Simulation of Gravitational Field of Irregular-shaped Bodies using Polydisperse Sphere Packings

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dc.contributor.authorSrinivas, Abhisheken_US
dc.contributor.authorWeller, Reneen_US
dc.contributor.authorZachmann, Gabrielen_US
dc.contributor.editorRobert W. Lindeman and Gerd Bruder and Daisuke Iwaien_US
dc.date.accessioned2017-11-21T15:43:10Z
dc.date.available2017-11-21T15:43:10Z
dc.date.issued2017
dc.description.abstractCurrently, interest in space missions to small bodies (e.g., asteroids) is increasing, both scientifically and commercially. One of the important aspects of these missions is to test the navigation, guidance, and control algorithms. The most cost and time efficient way to do this is to simulate the missions in virtual testbeds. To do so, a physically-based simulation of the small bodies' physical properties is essential. One of the most important physical properties, especially for landing operations, is the gravitational field, which can be quite irregular, depending on the shape and mass distribution of the body. In this paper, we present a novel algorithm to simulate gravitational fields for small bodies like asteroids. The main idea is to represent the small body's mass by a polydisperse sphere packing. This allows for an easy and efficient parallelization. Our GPU-based implementation outperforms traditional methods by more than two orders of magnitude while achieving a similar accuracy.en_US
dc.description.sectionheadersGraphics & Metrics
dc.description.seriesinformationICAT-EGVE 2017 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments
dc.identifier.doi10.2312/egve.20171361
dc.identifier.isbn978-3-03868-038-3
dc.identifier.issn1727-530X
dc.identifier.pages213-220
dc.identifier.urihttps://doi.org/10.2312/egve.20171361
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/egve20171361
dc.publisherThe Eurographics Associationen_US
dc.subjectComputing methodologies
dc.subjectReal
dc.subjecttime simulation
dc.subjectHuman
dc.subjectcentered computing
dc.subjectVirtual reality
dc.subjectApplied computing
dc.subjectAerospace
dc.titleFast and Accurate Simulation of Gravitational Field of Irregular-shaped Bodies using Polydisperse Sphere Packingsen_US
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