Computer modeling the air blast pressure loading from a nuclear explosion onto a parabolic dish antenna

Abstract

This paper presents a general form for computer modeling the overpressure and dynamic pressure pulses from a nuclear explosion onto a finite element parabolic dish antenna model. The following topics are discussed in detail within the subsequent chapters. A description of the transient modeling capability of the finite element code ANSYS is given. The WINDLDS program, written as part of this paper, models the dynamic pressure about the front concave surface of the dish antenna. A description of the overpressure interaction with the antenna surface 1s presented. Due to the limited amount of air blast test data on parabolic dish antennas of various contours, this paper shows how the reflected overpressure off of the front surface of all parabolic dish antenna contours can be approximated by the data taken from the well tested flat wall of a closed rectangular structure. The exponential equations that characterize the overpressure and dynamic pressure pulses are given and a complete description of how these equations are implemented in a finite element analysis is presented in an example problem.

Notes

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Graduation Date

1989

Semester

Spring

Advisor

Eno, Burton E.

Degree

Master of Science (M.S.)

College

College of Engineering

Department

Mechanical Engineering and Aerospace Sciences

Format

PDF

Pages

DP0027032

Language

English

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0027032

Subjects

Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic

Accessibility Status

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