NASA Technical Memorandum, Issues 4369-4375National Aeronautics and Space Administration,., 1992 - Aeronautics |
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Common terms and phrases
ACCOMPLISHMENT aerobrake Aeronautics and Space analysis analytical array articulated-truss joint ATTB AUTOCLASS backlash batten plane beam BENEFITS APPLICABLE MISSIONS combustor components computed configuration DATA DEVELOP displacement dynamic ENGINE equation experimental finite element flaperon flight flow FOIL BEARING frequency FY91 R&T BASE hardware isogrid panel joint concept joint hinge axis Langley Research Center laser lb/in² lbf/in length ratio linear actuators load load-deflection curve Mach Mach number mass mass flow rates maximum Midspan mission adaptive wing mixer mode shapes NASA nonlinear nozzle OAST OPERATIONS oxygen PDU's percent performance point design predicted pressure PROPULSION psia reduced reference truss sandwich panel servoactuator shown in figure SHOWN OBJECTIVE SHUTTLE space crane SPACE STATION FREEDOM SPACECRAFT static stiffness structural support concept TECHNOLOGY temperature test stream THERMAL torque transition truss truss truss booms tunnel variable-camber Z-axis
Popular passages
Page 22 - YBC are 0.707, 0.966, and 1.225 m. The value of 0.707 m is chosen to make the central batten plane ABA an isosceles right triangle with equallength legs of 1 m, and the 1.225-m value is chosen to make the central batten plane an equilateral tri angle with 1.414-m legs.
Page 19 - ... cryogenic tankage, is that of thermal stress and the technique of combining thermal stresses with load-induced stresses. A rigorous address to this problem should provide useful information to the designer. An even more pertinent observation is that the weight advantages shown for sandwich construction are often lost in the reduction to design practice, especially in the design of joints and attachments.
Page 9 - Conse quently, if higher vibration modes involving primarily lateral vibrations of the struts are of concern, their impact on double hinge stabilization should be care fully considered.
Page 19 - ... large and massive. Unmanned missions, such as the Earth Observation Satellite (EOS), and Planetary Explorers, will require large precision structures (trusses, antennas, and telescopes), landers, sample return vehicles, and aerobrakes. The...