Method and experiment of Temperature Collaborative Monitoring based on Characteristic Points for tilting pad bearings

Abstract High power rotating machinery require bearings that can perform under extreme conditions. Tilting pad bearing temperatures exceeding their design limits may cause unit downtime or failure. Through the analysis of tilting pad bearing lubrication characteristics, including temperature distribution and oil film pressure distribution, supplemented by a minimum oil film thickness analysis, a method named Temperature Collaborative Monitoring based on Characteristic Points is proposed. Using factory unit test bench, the geometric characteristics and the operational characteristics of the tilting pad bearing unit are analyzed. A reasonable arrangement of the bearing temperature measurement points is presented. A large amount of temperature data for the main-pad and vice-pad are obtained. Experimental results verify the feasibility of the proposed measurement method.

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