Frictional dynamic characteristic measuring apparatus
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United States of America Patent
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Dec 7, 1999
Grant Date -
N/A
app pub date -
Dec 4, 1997
filing date -
Mar 24, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A frictional dynamic characteristic measuring apparatus for measuring a pressing force and a frictional force acting between a friction material as a specimen and a slide portion which are in sliding contact, includes a sliding speed changing device for forcibly changing a sliding speed of the friction material and the slide portion, which is changing in a self-excited manner at a resonance frequency of a resonance system including the friction material and the slide portion, at the resonance frequency of the resonance system. This apparatus enables evaluation of a friction material which absorbs self-excited vibration in a torsional vibration system without the need of additional evaluation in an actual machine for use.
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