Simulation of pyroshock environments using a tunable resonant fixture

Title: Simulation of pyroshock environments using a tunable resonant fixture

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Abstract

Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response characteristics, in favor of a single tunable system. 32 figs.

Inventors:: Davie, N T

Issue Date:: 1996-10-15

Research Org.:: AT&T

OSTI Identifier:: 379936

Patent Number(s):: 5565626

Application Number:: PAN: 8-128,963

Assignee:: Dept. of Energy, Washington, DC (United States)

DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 15 Oct 1996

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ELECTRONIC EQUIPMENT; MECHANICAL TESTS; IMPACT SHOCK; PYROTECHNIC DEVICES; USES

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                    Davie, N T. Simulation of pyroshock environments using a tunable resonant fixture.  United States: N. p., 1996. 
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                    Davie, N T. Simulation of pyroshock environments using a tunable resonant fixture.  United States.

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                    Davie, N T. Tue .  
        "Simulation of pyroshock environments using a tunable resonant fixture".  United States.

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@article{osti_379936,

  title        = {Simulation of pyroshock environments using a tunable resonant fixture},

  author       = {Davie, N T},

  abstractNote = {Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response characteristics, in favor of a single tunable system. 32 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1996},

  month        = {10}

}

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Simulation of pyroshock environments using a tunable resonant fixture

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Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response characteristics, in favor of a single tunable system.
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Simulation of pyroshock environments using a tunable resonant fixture

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Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response characteristics, in favor of a single tunable system.
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Aerospace components are often subjected to pyroshock events during flight and deployment, and must be qualified to this frequently severe environment. Laboratory simulation of pyroshock using a mechanically excited resonant fixture, has gained favor at Sandia for testing small (<8 inch cube) satellite and weapon components. With this method, each different shock environment required a different resonant fixture that was designed such that it`s response retched the environment A new test method has been developed which eliminates the need to have a different resonant fixture for each test requirement This is accomplished by means of a tunable resonant fixture thatmore »« less
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Aerospace components are often subjected to pyroshock events during flight and deployment, and must be qualified to this frequently severe environment. Laboratory simulation of pyroshock using a mechanically excited resonant fixture, has gained favor at Sandia for testing small (<8 inch cube) weapon components. With this method, each different shock environment required a different resonant fixture that was designed such that it`s response matched the environment. In Phase 1 (SAND92-2135) of this research, a new test method was developed which eliminated the need to have a different resonant fixture for each test requirement. This was accomplished by means of amore »« less
DOI: https://doi.org/10.2172/469143

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