Modeling and analysis of doubly curved aerobrake truss structuresAn aerobrake structural concept featuring a double curved tetrahedral truss support system and hexagonal heat shield panels was modeled and analyzed. Modeling equations for a sphere, cone, and paraboloid were developed for the purpose. Design equation and computer codes were also evolved and employed to determine the total mass of the aerobrake as well as any parameters that had an adverse effect on the total aerobrake mass. These data were used in a point design for a Mars mission aerobrake. A 131-ft diameter aerobrake was found to be viable using the present structural concept (i.e., the total aerobrake mass is not greater than 450,000 lb, which is the attached spacecraft mass). It is also shown that curvature, load point placement, number of load points, number of strut designs, and number of rings all have an effect on the mass of the aerobrake.
Washington, Gregory (NASA Headquarters Washington, DC United States)
Klang, Eric (North Carolina State Univ. Raleigh, United States)
August 16, 2013
January 1, 1992
Publication: In: Engineering, construction, and operations in space - III: Space '92; Proceedings of the 3rd International Conference, Denver, CO, May 31-June 4, 1992. Vol. 1 (A93-41976 17-12)
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
IDRelationTitle19930057979Analytic PrimaryEngineering, Construction, and Operations in Space IIIvisibility_off