Accession Number:

ADA031489

Title:

Preliminary Study of Computer Modeling of the Dynamic Fuel Conditions in Weapon System Vulnerability Analysis.

Descriptive Note:

Final rept. 1 Jul 73-31 Mar 74,

Corporate Author:

KEARNEY (A T) INC CHICAGO IL CAYWOOD-SCHILLER DIV

Report Date:

1976-09-01

Pagination or Media Count:

72.0

Abstract:

This report presents the results of a study to develop a dynamic model of the vulnerability of an aircraft fuel system to the threats posed by hostile weapons. A Monte Carlo model was developed to calculate the probability of hit along segments of a specified flight profile at each point where a specified weapon system could pose a threat to the fuel system. An Air Force developed computer model Well-Stirred Fuel Tank Model is used to compute fuel state in each fuel tank under study at increments along the flight path. These are used as inputs to the Monte Carlo model. Given that a hit takes place, the probable trajectories liquid-air, liquid-liquid, and air-air are calculated, and the probabilities of lethal outcomes explosion, internal fire, external fire, leak are computed. The model ranks the most likely events, and a hazard index is generated which portrays the most important threats to the fuel system on the specified flight path. The resulting model gives an improved measure of the impact of fuel state on the vulnerability of a fuel system on aircraft vulnerability. It does not incorporate consideration of the effects of fuel slosh, vibration, or vent geometry. Further refinement and development is recommended.

Subject Categories:

  • Aircraft
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE