Frequency range for measuring shock load on frame.
Frequency range for measuring shock load on frame.
(OP)
I am measuring the peak accelerations on a small tractor frame when running through a bumpy field. Someone has suggested that the frequency range be limited to 50 or 100 hz because the destructive forces are more prevalent in the lower frequencies. When I measure over a wider frequency range (0-1600 hz), the peak acceleration is 200 m/s². When I measure with a frequency range limited to 50 hz the peak acceleration is around 20 m/s². Which frequency range should I use to accurately discribe the load on the frame.
Thanks for your replies.
vechman
Thanks for your replies.
vechman





RE: Frequency range for measuring shock load on frame.
TTFN
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RE: Frequency range for measuring shock load on frame.
I doubt you'll get much fatigue related to wheel inputs above 100 hz.
Cheers
Greg Locock
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RE: Frequency range for measuring shock load on frame.
Have analyzed failures where the low amplitude/high frequency range had more effect on the failure (wind vibration on transmission structure)