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Electromagnetic Effects
Environmental TestingExpand Environmental Testing
Nuclear Effects
Vibration/Shock 
 
 

White Sands Missile Range maintains an extensive array of equipment available for shock testing.  All shock tests can be remotely controlled to accommodate explosive and hazardous test items.

Electrodynamic Vibration Test

Electrodynamic vibration exciters are available to meet most vibration testing requirements.  Large reaction masses accommodate multiple exciters for tests involving large forces, massive test items, or multiple degrees-of-freedom excitation.  A wide range of test setups can be accommodated for large structure testing by positioning multiple shakers around the structure.  Most vibration test specifications can be accommodated with our Data Physics Vector II vibration control systems.  Electrodynamic Vibration Test Exciter specifications are listed below:

NAME Force Rating Displacement Frequency Range
UNHOLTZ-DICKIE (small):  2,000  1 inch  5 to 3,000 Hertz
UNHOLTZ-DICKIE (large)  50000  2 inches  5 to 3,000 Hertz
 LING 335  18,000  1 inch  5 to 2,000 Hertz
 LDS 964LS  16,000  2 inches  5 to 2,000 Hertz

 

Shock Testing

Shock Testing Using Electrodynamic Exciters- Electrodynamic exciters can be used to produce classical pulses (half-sine, saw-tooth, trapezoidal) and complex pulses using shock synthesis techniques.  Repetitive transient and wide-band random with mixed shock pulses (transient) can also be produced.

Shock Machines- Shock tests which require classical high peak accelerations or large velocity changes can be accommodated on shock test machines.  All shock test machines can be configured to provide half-sine, terminal peak saw-tooth, or square wave shock pulses.

Characteristics  12x12 Shock Machine 36x36 Shock Machine 60x60 Shock Machine
Table Mounting Surface  12 inches by 12 inches 36 inches by 36 inches 60 inches by 60 inches
 Max. Specimen Height 14 inches Approximately 15 feet Approximately 15 feet
 Max. Specimen Weight 2,000 pounds 4,500 pounds 5,500 pounds
 Max Acceleration 10,000 G (50lb specimen) 1,500 G (1,000 lb specimen) 200 G
 Max Pulse Duration 0.2 milliseconds 1 millisecond (1,000 lbs) 2 milliseconds

For the 12x12 shock machine, typical shock tests range from 11 milliseconds at 100 G'sconds to 35 milliseconds at 15 G's using long stroke gas programmers.  For the 36x36 shock machine, typical shock tests range from 6 milliseconds at 200 G's to 13 milliseconds at 100 G's using four universal gas programmers.  For the 60x60 Shock Machine typical shock tests include 11 milliseconds @ 35 G's.

Impact Shock Testing

A pendulum impact shock machine with a sixteen foot cable length and a 10x16 foot mounting platform is available for performing packaged container transportation shock tests.  Rail impact tests are conducted utilizing facilities at Ft. Bliss., Texas

Rough Handling (drop shock) Test Facilities are available to provide rough handling drop test.

This page was last updated on 3/27/2012 10:06 AM 
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