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Title: Modeling Techniques Used to Analyze Safety of Payloads for Generic Missile Type Weapons Systems During an Indirect Lightning Strike

During lightning strikes buildings and other structures can act as imperfect Faraday Cages, enabling electromagnetic fields to be developed inside the facilities. Some equipment stored inside these facilities may unfortunately act as antenna systems. It is important to have techniques developed to analyze how much voltage, current, or energy dissipation may be developed over valuable components. In this discussion we will demonstrate the modeling techniques used to accurately analyze a generic missile type weapons system as it goes through different stages of assembly. As work is performed on weapons systems detonator cables can become exposed. These cables will form different monopole and loop type antenna systems that must be analyzed to determine the voltages developed over the detonator regions. Due to the low frequencies of lightning pulses, a lumped element circuit model can be developed to help analyze the different antenna configurations. We will show an example of how numerical modeling can be used to develop the lumped element circuit models used to calculate voltage, current, or energy dissipated over the detonator region of a generic missile type weapons system.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
970155
Report Number(s):
LLNL-PROC-414997
TRN: US201003%%396
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 31st Annual Antenna Measurement Techniques Association Symposium, Salt Lake City, UT, United States, Nov 01 - Nov 06, 2009
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; ANTENNAS; CABLES; DETONATORS; ELECTROMAGNETIC FIELDS; ENERGY LOSSES; FARADAY CUPS; LIGHTNING; MISSILES; MONOPOLES; SAFETY; SIMULATION; WEAPONS