Article ID Journal Published Year Pages File Type
614853 Tribology International 2014 7 Pages PDF
Abstract

•The problem of undesired noise in a mechanical face seal is described and experimental result showed.•We describe a tribological model of the seal.•We have proposed a combination of tribological model with a lumped parameter model of the seal.•Simulations based on the proposed model are carried out.•Results demonstrate that noise is due to stick-slip vibrations.

Mechanical face seals are used with most types of mechanical equipment, thus understanding the behavior of sealing systems is required for improved performance. The present paper investigates a type of seal utilized in automotive cooling water pumps, which, under particular service conditions, generates undesired acoustic emissions and manifests malfunctioning. The problem is examined through a lumped parameter model together with a mixed friction tribological model. Numerical simulations demonstrate that the phenomenon is caused by the insurgence of stick-slip vibrations during shaft deceleration. In addition, the stability threshold is investigated and the influences of some design parameters are evaluated.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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