Accession Number:

ADA106520

Title:

Nuclear Blast Response Computer Program. Volume III. Program Listing.

Descriptive Note:

Final rept. May 75-Jun 77,

Corporate Author:

DOUGLAS AIRCRAFT CO LONG BEACH CA

Personal Author(s):

• McGrew,J. A.
• Croxen,H. H.
• Kalman,T. P.
• Giesing,J. P.
• Rodden,W. P.

Report Date:

1981-08-01

Pagination or Media Count:

433.0

Abstract:

The VIBRA-6 computer program is a digital computer program developed to determine the response of aircraft to nuclear explosions when flying at subsonic speeds. It is similar to the VIBRA-4 program but uses the latest Doublet-Lattice Method for obtaining subsonic aerodynamic forces for arbitrary lifting surface-body configurations. The Doublet-Lattice procedure has been extended to account for the moving blast wave by considering it as a traveling gust. The nuclear blast representation remains the same as that used in the VIBRA-4 program but the method of solution of the equations of motion has been changed from that of numerical integration of quasi-steady equations of motion to a Fourier transform procedure to move from frequency domain solutions to time history solutions. This report is divided into three volumes Volume I contains the overall program descriptions and method of analysis, the input and output data descriptions, the program operation and a sample problem. Volume II details the unsteady aerodynamic procedure and Volume III contains the program listings.

Descriptors:

• *COMPUTER PROGRAMS
• *MILITARY AIRCRAFT
• *NUCLEAR EXPLOSION SIMULATION
• *AERODYNAMIC LOADING
• *BLAST LOADS
• FOURIER TRANSFORMATION
• EQUATIONS OF MOTION
• DYNAMIC RESPONSE
• VULNERABILITY
• BLAST WAVES
• STRUCTURAL RESPONSE
• DYNAMIC LOADS
• DIGITAL SIMULATION
• GUST LOADS
• SUBSONIC FLIGHT
• LIFTING SURFACES

Subject Categories:

• Aircraft
• Computer Programming and Software
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE