Durability, Acoustic Performance and Process Efficiencies of Absorbent Fibers for Muffler Filling Owens Corning

Format:

Conference/Event

Author/Creator:

Cofer, Cameron G., author.

Conference Name:

Noise & Vibration Conference & Exposition (1999-05-17 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

Silencers are very often filled with absorbent fibers to optimize the acoustic performance, particularly when the volume is limited. The fibers have to meet several specifications concerning (1) acoustic damping as a function of frequency, (2) temperature stability, (3) processing, and (4) blow-out resistance. This paper will review the characteristic properties for continuous fibers including Advantex versus standard E Glass as well as discontinuous fibers such as basalt wool. The failure mechanism of the various fibers will be explored in detail. Thermal shock testing, single filament tensile strengths, and weight loss measurements will be used to contrast the failure mechanism of these fibers. Additionally, the acoustic performance of silencers filled with different fibers will be analyzed and compared. The selection of different filling materials is closely linked to the production process utilized. A system which automatically injects specially designed continuous glass fibers into each silencer will be presented, and its capabilities will be evaluated

Notes:

Vendor supplied data

Publisher Number:

1999-01-1655

Access Restriction:

Restricted for use by site license