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Year : 2011  |  Volume : 1  |  Issue : 2  |  Page : 94-99

Effect of L/D Ratio on the Performance of an Inverted Three-lobe Pressure Dam Bearing

1 Maharishi Markendeshwar Engineering College, Ambala (Haryana), India
2 National Institute of Technology, Kurukshetra (Haryana), India

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N K Batra
Maharishi Markendeshwar Engineering College, Ambala (Haryana)
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-8580.86641

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An inverted three-lobe pressure dam bearing which is produced by cutting a pressure dams on the upper lobe and two relief-tracks on the lower two lobes of an ordinary inverted three-lobe bearing is found to be more stable than an inverted three-lobe bearing. In this paper an inverted three-lobe pressure dam bearing supporting rigid and flexible rotors is analytically investigated to determine its performance when L/D ratio is varied in the range 0.8-1.5. The static and dynamic characteristics are studied at various L/D ratios. The results show that the stability of an inverted three-lobe pressure dam bearing increases with decrease in L/D ratios both for rigid as well as flexible rotors.

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