Accession Number:

AD0450460

Title:

SUMMARY OF THE AEROTHERMOELASTIC DEVELOPMENT PROGRAM FOR THE X-20A (DYNA-SOAR)

Descriptive Note:

Corporate Author:

SYSTEMS ENGINEERING GROUP WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Baird, Weldon R.

Report Date:

1964-09-01

Pagination or Media Count:

32.0

Abstract:

This report summarizes the aerothermoelastic development status of the X-20A Dyna-Soar at the time the program was terminated, December 1963. Analytical and test techniques for lifting surface flutter, control surface buzz, panel flutter, and air vehicle flutter are discussed. While analysis and limited scale testing indicated a satisfactory design, necessary development testing to verify the desing had not been completed. One exception was in the area of panel flutter where high confidence existed in success. Re-entry temperatures did not appear to be a significant direct concern from the point of view of flutter. The difficulty of employing control surface dampers apparently poses a special concern for designers of reentry vehicles employing aerodynamic control surfaces.

Descriptors:

• *AEROTHERMOELASTICITY
• *FLUTTER
• *MANNED SPACECRAFT
• AERODYNAMIC HEATING
• AERODYNAMICS
• AIRFRAMES
• ATMOSPHERE ENTRY
• CONTROL SURFACES
• GLIDERS
• MANNED
• REENTRY VEHICLES

Subject Categories:

• Fluid Mechanics
• Manned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE