Vibration tests

BOSMAL conducts various types of vibration tests. Elements tested include:
  • body elements,
  • car lamps,
  • coolers,
  • other components.

Resistance to sinusoidal vibration, random and mechanical shock tests

Vibration system working in conjunction with climatic chamber

Vibrations and mechanical shocks are generated by an electrodynamic inductor allowing testing on the vertical or horizontal axes.
The climatic chamber is integrated into the vibration test bench, which permits production of the required temperature/climatic condition during vibration tests.
We provide the appropriate power supply; electric load, media circuits (air, cooling liquids, etc.) depending on the required installation conditions of the object under test.
We have one- or three-axis accelerometers with a wide range of sensitivities (selected depending on required usage); the vibration system has 12 input channels allowing multichannel vibration control to be conducted and measurement of the test component’s response.
We also have great experience in designing and producing vibration brackets.

Norms

We conduct tests (PCA accredited scope) according to the following norms:
  • PN-EN 60068-2-6:2008 - Environmental testing. Tests. Test Fc. Vibration (sinusoidal)
  • PN-EN 60068-2-27:2009 - Environmental testing. Tests. Test Ea and guidance. Shock
  • PN-EN 60068-2-64:2008 - Environmental testing. Tests. Test Fh. Vibration, broadband random and guidance
  • and many other manufacturer norms and test programs established with the customer

Testing scope using vibration system

Sinusoidal vibrations (for example, according to PN-EN 600680-2-6) and random (for example, according to PN-EN 60068-2-64)

  • frequency range from 4 Hz to 3000 Hz,
  • maximum displacement (peak-peak): 76 mm
  • maximum acceleration to 1000 m/s2 (100 g),
  • maximum mass of object tested to around 600 kg,
  • dimensions of the sliding table: 914 x 914 mm
  • exposure towards vertical or horizontal axis
 

Mechanical impacts according to PN-EN 60069-2-27 (for example):

  • various shapes of impacts (half sinusoid, trapeze, triangle, etc.),
  • maximum acceleration to around 2600 m/s2 (260 g),
  • maximum mass of test object around 600 kg,
  • exposure towards the vertical or horizontal axis,
  • shock realisation 100 g 11 ms (at loads up to 40 kg)
  • shock realisation 100 g 6 ms on the sliding table (at loads up to 10 kg)

Unholtz-Dickie Vibration test bench - basic parameters

  • power: 35.6 kN
  • frequency range: from 4 to 3000 Hz
  • maximum displacement: 76 mm
  • maximum acceleration 100 g (sine wave/random); 260 g (mechanical shocks)
  • maximum load: 600 kg
  • bench dimensions: 600 x 600 mm – vertical; 914 x 914 mm – horizontal.

Climats climatic chamber - basic parameters

  • interior dimensions: 1500 x 1500 x 1500 mm (volume 3,4 m3),
  • temperature range (working with vibration bench): from -40 to 160ºC; working alone: from -75 to 180ºC,
  • relative humidity: from 10 to 98% (at temperatures from +10 to 90ºC),
  • rate of temperature change: 10ºC/min (with interior heat distribution).

 See also: 

Document No. Title/Description
PN-EN 60068-2-6:2008 Environmental testing. Tests. Test Fc. Vibration (sinusoidal)
PN-EN 60068-2-27:2009 Environmental testing. Tests. Test Ea and guidance. Shock
PN-EN 60068-2-64:2008 Environmental testing. Tests. Test Fh. Vibration, broadband random and guidance