Accession Number:

AD0605407

Title:

A PROGRAM TO INDUCE HIGH BLAST-INDUCED AIRLOADS AND STRUCTURAL RESPONSE OF LIFTING SURFACES,

Descriptive Note:

Corporate Author:

AIRCRAFT ARMAMENTS INC COCKEYSVILLE MD

Report Date:

1964-07-01

Pagination or Media Count:

521.0

Abstract:

Six experiments were conducted to measure the transient character of the airloads induced by the interaction of blast generated shock waves on a moving airfoil. The tests were conducted on a rigid airloads model of swept planform, similar in type to a B47B52 aircraft. Airfoil motion was simulated by the shock tube which produced a jet flow of Mach 0.7. Shock waves were generated by explosive charges which were varied in sized and proximity to obtain airloads on the wing that changed both the angle of attack and blast duration through a range from small to large. The wing specimens were heavily instrumented with pressure transducers to measure the time history of the variation in the airloads. Response of the wing to the airloads was measured by strain gages and accelerometers. Pressure instrumentation was also used to measure the character of the blast environment. Blast parameters were varied to obtain induced airloads with nominal values for the angle of attack of 8, 20 and 30 degrees. At each of these angles of attack, an experiment was run with a short and long duration shock wave to study the effect of decay rate on the airloads. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE