Accession Number:

AD0837104

Title:

A THEORETICAL AND EXPERIMENTAL ANALYSIS OF QUASISTATIC MAGNETIC FIELD TRANSMISSION THROUGH CIRCULAR APERTURES,

Descriptive Note:

Corporate Author:

ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA

Personal Author(s):

• Bombardt, John N., Jr.
• Bostak, Ronald J.

Report Date:

1968-01-01

Pagination or Media Count:

15.0

Abstract:

In studies related to protection against the Electromagnetic Pulse EMP resulting from nuclear explosions, electromagnetic shielding theory is applied to military electrical systems. Many complex boundary value problems must be solved in order to estimate the EMP effects on such a system. The complexity of these real world problems is such that rigor must be sacrificed for engineering judgment if any estimates of EMP effects are to be obtained in a reasonable time frame. For instance, apertures that appear in equipment enclosures, cabinets, missiles, etc., are examples of such real world problems. Transmission through circular apertures in long hollow cylindrical enclosures is frequently of interest in dealing with such systems. We consider the determination of interior fields for a hollow cylinder of infinite length with a circular aperture, which is uniformly immersed in a time varying axial magnetic field. Author

Descriptors:

• *ELECTROMAGNETIC PULSES)
• *ELECTROMAGNETIC SHIELDING)
• (*NUCLEAR EXPLOSIONS
• (*MAGNETIC FIELDS
• WAVE PROPAGATION
• CYLINDRICAL BODIES
• MATHEMATICAL MODELS
• EXPERIMENTAL DATA
• CORRELATION TECHNIQUES

Subject Categories:

• Electrical and Electronic Equipment
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE