Effects of elastic deformation of a bearing liner on performance of finite offset-halves pressure dam bearings

✍ Scribed by Surjit Angra; N. P. Mehta; S. S. Rattan

• Publisher: Springer US
• Year: 1996
• Tongue: English
• Weight: 553 KB
• Volume: 2
• Category: Article
• ISSN: 1023-8883
• DOI: 10.1007/bf00173133

✦ Synopsis

The elastic effects of the liner of a hydrodynamic bearing are considered to be very significant, since they are found to influence the performance of the bearing considerably. The study of bearings such as circular, ordinary two-lobe, elliptical pressure dam etc. has already been reported. This paper describes the elastohydrodynamic study of an offsethalves pressure dam bearing, which is one of the common types of two-lobe bearings. The flexibility of the liner is represented by a dimensionless deformation coefficient. The results indicate that with the flexibility of the liner, the zone of infinite stability increases, whereas the minimum threshold speed first decreases and then increases in the investigated range. Rotor flexibility adversely affects the minimum threshold speed, but the zone of infinite stability remains unaffected.