Blast response of 35 ft fibreglass whip antenna - Event Dice Throw
Technical Report
·
OSTI ID:6755167
The blast response of 35 ft fibreglass Whip Antennas was investigated in a free-field blast trial and in numerical simulation experiments. The antennas satisfactorily withstood the air blast loading at nominal 7.0, 10.0 and 12.2 psi peak overpressure locations in Event Dice Throw. The numerical model predictions for the natural frequencies are in excellent agreement with results obtained experimentally, however the corresponding predictions for the transient strain using drag coefficients based on previous trials were approximately double the values obtained experimentally. Subsequent revised numerical predictions for the transient strains using experimental drag coefficients obtained independently in the blast trial itself have produced results in more reasonable agreement with the experimental transient strains.
- Research Organization:
- Defence Research Establishment Suffield, Ralston, Alberta (Canada)
- OSTI ID:
- 6755167
- Report Number(s):
- AD-A-048357
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200 -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
ANTENNAS
BLAST EFFECTS
CHEMICAL EXPLOSIONS
ELECTRICAL EQUIPMENT
EQUIPMENT
EXPLOSIONS
FIBERGLASS
MATERIALS
NUCLEAR EXPLOSIONS
SIMULATION
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200 -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
ANTENNAS
BLAST EFFECTS
CHEMICAL EXPLOSIONS
ELECTRICAL EQUIPMENT
EQUIPMENT
EXPLOSIONS
FIBERGLASS
MATERIALS
NUCLEAR EXPLOSIONS
SIMULATION