Random Vibration Testing

By causing loosening of parts or relative motion between parts in the specimen, vibration can produce objectionable operating characteristics, noise, wear, and physical distortion, and often results in fatigue and failure of mechanical parts.

IC random vibration testing determines the effects on component parts of vibration within the predominant frequency ranges and magnitudes that may be encountered during field service and/or transportation.  Most vibrations encountered in field service and/or transportation are not of a simple harmonic nature; tests based on vibrations of this type have proved satisfactory for determining critical frequencies, modes of vibration, and other data necessary for planning protective steps against the effects of undue vibration.

Random Vibration is characteristic of modern field environments such as commercial transportation, those produced by missiles, high-thrust jets, and rocket engines. In these types of environments, the random vibration test provides a more realistic test as it simulates vibration amplitudes which may vary randomly, periodically, or both.  Standards used include mil std 202 method 214 and mil std 883 method 2026.  SCL is an IC vibration testing laboratory that has years of technical experience with IC random vibration testing.

 

Test Specifications / Standards

  • MIL-STD-202   Method 214         Cond 1 (A-H)   Cond 2 (A-G)
  • MIL-STD-883   Method 2026       Cond 1 (A-H)   Cond 2 (A-G)