Accession Number:

ADA301981

Title:

High Heat Flux Activity Cooled Honeycomb Sandwich Structural Panel for a Hypersonic Aircraft.

Descriptive Note:

Final rept.,

Corporate Author:

MCDONNELL DOUGLAS CORP ST LOUIS MO

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

172.0

Abstract:

This report presents the results of a program to design and fabricate an unshielded actively cooled structural panel for a hypersonic aircraft. The design is an all-aluminum honeycomb sandwich with embedded cooling passages ordered to the inside of the outer moldline skin the coolant is a 6040 mixture of methanolwater. The panel was mass optimized to sustain 20000 cycles 5000 x scatter factor of 4 of or - 210 kNm - 1200 lbfin. inplane loading combined with a 6.9 kPa - 1.0 psi uniform pressure while subjected to a 136 k Wm 12 BTUft2 uniform beat flux. Six fatigue specimens, of critical panel areas, were fabricated by McDonnell Aircraft Company and tested at room temperature by NASA. A representative test panel was not fabricated because of problems with the plottingsoldering process. The overall finding is that an actively cooled structure appears feasible for application on a hypersonic aircraft, but the fabrication process is complex and some material and manufacturing technology developments are required. Results from the program are summarized in the body of the report and supporting details are presented in several appendices. AN

Subject Categories:

  • Research and Experimental Aircraft
  • Thermodynamics
  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE