title: Geometric modeling of inflatable structures for lunar base.
abstract: A modular inflatable structure consisting of thin, composite membranes is presented for use in a lunar base.  Results from a linear elastic analysis of the structure indicate that it is feasible in the lunar environment.  Further analysis requires solving nonlinear equations and accurately specifying the geometries of the structural members.  A computerized geometric modeling technique, using bicubic Bezier surfaces to generate the geometries of the inflatable structure, was conducted.  Simulated results are used to create three-dimensional wire frames and solid renderings of the individual components of the inflatable structure.  The component geometries are connected into modules, which are then assembled based upon the desired architecture of the structure.
authors.affiliation: Dept. of Civ. Engrg., Colorado State Univ., Ft. Collins 80523.
authors.forename: P S
authors.initials: PS
authors.lastname: Nowak
authors.forename: W Z
authors.initials: WZ
authors.lastname: Sadeh
authors.forename: L A
authors.initials: LA
authors.lastname: Morroni
mesh_terms: D003198:Computer Simulation / Q000706:statistics & numerical data*; D018504:Ecological Systems, Closed; D005118:Extraterrestrial Environment; D005160:Facility Design and Construction / Q000295:instrumentation*; D008021:Life Support Systems; D016081:Moon; D013026:Space Flight