Frictional dynamic characteristic measuring apparatus

Details Frictional dynamic characteristic measuring apparatus Frictional dynamic characteristic measuring apparatus

1997-12-04

1999-12-07

Noori, Max

Measuring and testing

Frictional resistance, coefficient or characteristics

73 7, G01N 1902, G01N 356

Patent

active

059963956

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.

REFERENCES:
patent: 3992922 (1976-11-01), Noble
patent: 4594878 (1986-06-01), Abe et al.
patent: 5315860 (1994-05-01), Drellich et al.
patent: 5375451 (1994-12-01), Sandstrom
patent: 5736630 (1998-04-01), Welner et al.

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