Computer modeling the air blast pressure loading from a nuclear explosion onto a parabolic dish antenna
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.
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Eno, Burton E.
Master of Science (M.S.)
College of Engineering
Mechanical Engineering and Aerospace Sciences
Length of Campus-only Access
Masters Thesis (Open Access)
Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic
Neilson, Walter Craig, "Computer modeling the air blast pressure loading from a nuclear explosion onto a parabolic dish antenna" (1989). Retrospective Theses and Dissertations. 4189.