What is an accelerometer's sensitivity defined in?
What sweep rate will cause the most damage?
The definition of random is:
The most commonly used crest factor used for random vibration testing is:
The velocity a vibrator can achieve is proportional to:
One gravitational unit (gn) is exactly equal to:
A vibration test system has a maximum sine force rating of 1500kgf peak and an armature mass of 23kg. A swept sine test is required as follows:
10Hz to 700 Hz Acceleration = 15gn peak The Unit under test has a mass of 35kg and the fixture has a mass of 45kg.
Can the system do the test?
A random test using a crest factor of 2.3 is as follows:
The total gnrms is:
The predicted displacement is:
When a Vibrator's axis is changed from a vertical axis to a horizontal axis or from a horizontal axis to a vertical axis, what must be fitted?
A swept sine test has an acceleration target of 5gn peak, and the abort level is set to ±3dB. At what maximum acceleration would the test abort?
A swept sine test goes from 12Hz to 550Hz (one unidirectional sweep). If the sweep from 12Hz to 550Hz should take 5 minutes, what is the log sweep rate?
When using a sliptable, the control accelerometer should be fitted to:
A fixed frequency test is at 23Hz and the acceleration is 100m/s². What is the displacement?
A vibrator has a displacement limit of 50.8 mm peak to peak and the test load is 100kg and the armature mass is 12kg and the body mass is 616kg. What is the maximum displacement that can be achieved if the body of the vibrator is isolated?
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