Aircraft fuel tank vulnerability to hydraulic ram : modification of the Northrop finite element, computer code BR-1 to include fluid-structure interaction ; theory and user's manual for BR-1HR
Authors
Ball, Robert E.
Subjects
Aircraft survivability
aircraft vulnerability
fuel cells
hydraulic ram.
aircraft vulnerability
fuel cells
hydraulic ram.
Advisors
Date of Issue
1974-07
Date
1974-07
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The finite element digital computer code BR-1, developed by the Northrop Corporation, for predicting the effects of internal air blast on combat aircraft structures is modified to include the effects of compressible fluid -structure interaction. The true interaction phenomenon is approximated by the piston theory. The modification enables the code to be used to predict the structural response of aircraft fuel tanks subjected to penetrating bullets and fragments. It can also be used in many other fluid-structure interaction problems. This report contains the theory,
the modifications, and the additional instructions required to operate
the modified code, called BR-1HR. The code is operational on the IBM 360/67 in FORTRAN IV, Level H.
Type
Technical Report
Description
Series/Report No
Department
Organization
Operations Research (OR)
Graduate School of Operational and Information Sciences (GSOIS)
Identifiers
NPS Report Number
NPS-57Bp74071
Sponsors
Prepared for: Air Force Flight Dynamics Laboratory, Wright-Patterson AFB, OH 45433
Funder
FY 1456-74-00001
Format
35 p. : ill. ; 28 cm.
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.