Computer Science
Scientific paper
Oct 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990asee.nasaq....o&link_type=abstract
In Alabama Univ., Research Reports: 1990 NASA/ASEE Summer Faculty Fellowship Program 10 p (SEE N91-18967 10-99)
Computer Science
Construction, Foundations, Lunar Soil, Moon, Supports, Telescopes, Aluminum Alloys, Compressibility, Manganese Alloys, Modulus Of Elasticity, Thermal Expansion
Scientific paper
The different materials that could be used to design the pedestal for a Moon based 16 meter telescope are discussed. The material that should be used has a low coefficient of thermal expansion, high modulus of elasticity, and high compressive and tensile strengths. For the model developed in this study, an aluminum-manganese alloy was used because of its low coefficient of thermal expansion. Due to variations in lunar soil conditions, both vertically and horizontally, three foundation systems are presented. The spudcan footing can be used in the case where dense soil is more than three meters. The spread footing is recommended where the dense soil is between one and three meters. Finally, in the third system, the Lunar Excursion Vehicle (LEV) is used as a base support for the telescope's pedestal. The LEV support requires a prepared site. The soil should be compacted and stabilized, if necessary, to reduce settlement.
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