Stability of a Rotating Asteroid Housing a Space Station

Today there are numerous studies on asteroid mining. They elaborate on selecting the right objects, prospecting missions, potential asteroid redirection, and the mining process itself. For economic reasons, most studies focus on mining candidates in the 100–500 m size-range. Also, suggestions regard...

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Main Authors: Thomas I. Maindl, Roman Miksch, Birgit Loibnegger
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-05-01
Series:Frontiers in Astronomy and Space Sciences
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fspas.2019.00037/full
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author Thomas I. Maindl
Roman Miksch
Birgit Loibnegger
author_facet Thomas I. Maindl
Roman Miksch
Birgit Loibnegger
author_sort Thomas I. Maindl
collection DOAJ
description Today there are numerous studies on asteroid mining. They elaborate on selecting the right objects, prospecting missions, potential asteroid redirection, and the mining process itself. For economic reasons, most studies focus on mining candidates in the 100–500 m size-range. Also, suggestions regarding the design and implementation of space stations or even colonies inside the caverns of mined asteroids exist. Caverns provide the advantages of confined material in near-zero gravity during mining and later the hull will shield the inside from radiation. Existing studies focus on creating the necessary artificial gravity by rotating structures that are built inside the asteroid. Here, we assume the entire mined asteroid to rotate at a sufficient rate for artificial gravity and investigate its use for housing a habitat inside. In this study we present how to estimate the necessary spin rate assuming a cylindrical space station inside a mined asteroid and discuss the implications arising from substantial material stress given the required rotation rate. We estimate the required material strength using two relatively simple analytical models and discuss applicability to rocky near-Earth asteroids.
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spelling doaj.art-98fe21a458144ce89fff08a8cb1ef5a52022-12-21T17:50:48ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2019-05-01610.3389/fspas.2019.00037444823Stability of a Rotating Asteroid Housing a Space StationThomas I. MaindlRoman MikschBirgit LoibneggerToday there are numerous studies on asteroid mining. They elaborate on selecting the right objects, prospecting missions, potential asteroid redirection, and the mining process itself. For economic reasons, most studies focus on mining candidates in the 100–500 m size-range. Also, suggestions regarding the design and implementation of space stations or even colonies inside the caverns of mined asteroids exist. Caverns provide the advantages of confined material in near-zero gravity during mining and later the hull will shield the inside from radiation. Existing studies focus on creating the necessary artificial gravity by rotating structures that are built inside the asteroid. Here, we assume the entire mined asteroid to rotate at a sufficient rate for artificial gravity and investigate its use for housing a habitat inside. In this study we present how to estimate the necessary spin rate assuming a cylindrical space station inside a mined asteroid and discuss the implications arising from substantial material stress given the required rotation rate. We estimate the required material strength using two relatively simple analytical models and discuss applicability to rocky near-Earth asteroids.https://www.frontiersin.org/article/10.3389/fspas.2019.00037/fullasteroidsasteroid miningmaterial stressartificial gravityspace stations
spellingShingle Thomas I. Maindl
Roman Miksch
Birgit Loibnegger
Stability of a Rotating Asteroid Housing a Space Station
Frontiers in Astronomy and Space Sciences
asteroids
asteroid mining
material stress
artificial gravity
space stations
title Stability of a Rotating Asteroid Housing a Space Station
title_full Stability of a Rotating Asteroid Housing a Space Station
title_fullStr Stability of a Rotating Asteroid Housing a Space Station
title_full_unstemmed Stability of a Rotating Asteroid Housing a Space Station
title_short Stability of a Rotating Asteroid Housing a Space Station
title_sort stability of a rotating asteroid housing a space station
topic asteroids
asteroid mining
material stress
artificial gravity
space stations
url https://www.frontiersin.org/article/10.3389/fspas.2019.00037/full
work_keys_str_mv AT thomasimaindl stabilityofarotatingasteroidhousingaspacestation
AT romanmiksch stabilityofarotatingasteroidhousingaspacestation
AT birgitloibnegger stabilityofarotatingasteroidhousingaspacestation