Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Experimental Study on the Characteristics of the Film Pressure and Temperature in a 5-Pad Tilting Pad Journal Bearing of LOP Type

LOP형 5패드 틸팅패드 저어널베어링의 압력 및 온도 특성에 관한 실험적 연구

  • Published : 1998.03.01
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Abstract

The static characteristics of a five-pad tilting pad journal bearing of load on pad (LOP) type have been investigated experimentally under the different values of bearing load and shaft speed. The diameter and length of the bearing are 300.91 mrn and 149.8 mm, reslx;ctively. Circumferential distribution of the film pressure, film thickness, journal surface temperature and beating surface temperature are measured. A noticeable inlet pressure rise is observed at the entrance of each pad, especially the bottom pad. The inlet pressure is increased by the increase of shaft speed as well as bearing load. In the five-pad tilting pad joumal bearing of LOP type, almost all of beating load is being carried only by the bottom pad. The maximum bearing surface temperature is observed at near the minimum film thickness. It is observed that the metal temperature of the mid-plane is higher than that of the edge at the inlet region, while the metal temperature of the edge is higher than that of the mid-plane at the outlet region.

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References

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