Accession Number : ADA305376

Title :   Design and Fabrication of a Stringer Stiffened Discrete- Tube Actively Cooled Panel for a Hypersonic Aircraft,

Corporate Author : BELL AEROSPACE TEXTRON BUFFALO NY

Personal Author(s) : Anthony, Frank M. ; Helenbrook, Robert G.

PDF Url : ADA305376

Report Date : FEB 1981

Pagination or Media Count : 89

Abstract : This report presents the results of a program which optimized the design of a full-scale 0.61 x 6.1 m (2 x 20 ft) actively cooled panel for minimum panel mass. Design conditions and requirements were representative of those for a hypersonic transport. Details of the panel design were finalized on the basis of results from static and fatigue test specimens which incorporated major design features. Six large fatigue specimens, 0.1 x 0.2 m (4 x 8 in.) were tested by the Langley Research Center of NASA. A 0.61 x 1.22 m (2 x 4 ft) test panel was fabricated and delivered to the Langley Research Center for assessment of the thermal and structural features of the optimized panel design. The panel concept incorporated an unshielded skin actively cooled by a network of discrete, redundant, counterflow passages interconnected with appropriate manifolding, and assembled by adhesive bonding. The cooled skin was stiffened with a mechanically fastened conventional substructure of stringers and frames. The cooling passages were parallel to the stringers. A 40 water/60 glycol solution was the coolant.

Descriptors :   *SKIN(STRUCTURAL), *HYPERSONIC AIRCRAFT, *FATIGUE TESTS(MECHANICS), THERMAL PROPERTIES, STRUCTURAL PROPERTIES, MASS, PANELS, TEST EQUIPMENT, RESEARCH FACILITIES, COOLING, SEARCHING, SHIELDING, FRAMES, TRANSPORT AIRCRAFT, ADHESIVE BONDING.

Subject Categories : Aircraft
      Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE