Friction Material Compressibility as a Function of Pressure, Temperature, and Frequency Ford Motor Company

Format:

Conference/Event

Author/Creator:

Sanders, Paul G., author.

Conference Name:

26th Brake Colloquium and Exhibition (2008-10-12 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2008

Summary:

Compressibility is a common quality metric for friction materials. In addition, it is typically used as an engineering parameter for brake system design and performance. Compressibility (or elastic properties) of the friction material can effect brake roughness, pedal feel, and noise performance. A characterization technique is presented to determine the cyclic compressibility (over ± 1 kN) as a function of preload, temperature, frequency and time. The initial motivation was related to modeling of brake roughness, but applications to pedal feel and brake noise are also explored. For a given semi-metallic material, changing the temperature from 20 to 300°C or the preload from 8 to 4 kN both halve the cyclic compressibility. Less significantly, a change in frequency from 20 to 1 Hz reduces the cyclic compressibility by 10%. Differences between linings are also considered

Notes:

Vendor supplied data

Publisher Number:

2008-01-2574

Access Restriction:

Restricted for use by site license