کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
614853 | 1454833 | 2014 | 7 صفحه PDF | دانلود رایگان |
• 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.
Journal: Tribology International - Volume 71, March 2014, Pages 125–131