Noise attenuated brake friction member

Details Noise attenuated brake friction member Noise attenuated brake friction member

1994-03-23

1995-10-10

Graham, Matthew C.

Brakes

Elements

Shoes

188 731, F16D 6500

Patent

active

054563399

ABSTRACT:
A method of attenuating audible sounds generated during a brake application through the engagement of a friction member with a rotating member. The brake is evaluated by modal and frequency response analysis to determine the natural frequencies generated during a brake application and identify the natural frequencies that create audible sounds. The locations on the friction member are identified which are most sensitive to generate audible sounds. Thereafter, portions of the friction material at the most sensitive locations are removed to change the natural frequency and attenuate the development of audible sounds.

REFERENCES:
patent: 1855027 (1932-04-01), Loughead
patent: 2015829 (1935-10-01), White
patent: 2195262 (1940-03-01), Rasmussen
patent: 3807533 (1974-04-01), Ohtani
patent: 4393960 (1983-07-01), Mazur et al.
patent: 4705146 (1987-11-01), Tarter
patent: 4773512 (1988-09-01), Murakami
patent: 5145037 (1992-09-01), Kobayashi et al.

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