Structural Design and Performance Analysis of Tilting-pad Sliding Bearing for Marine gas Turbine

Abstract

With the strategic transformation of our country’s navy, the defense capability of long distance needs to be improved, which has higher requirements on the reliability and life of gas turbines. Bearing system is one of the factors that restricts the life and reliability of gas turbines. The fundamental reason is that the rolling bearings used have limited life and low reliability. Since sliding bearings have higher reliability, longer service life and lower maintenance costs, in order to improve the operation stability of a certain type of gas turbine which works under complex conditions, the former supporting elements were replaced with the more reliable tilting-pad sliding bearings. Its structure is designed according to the original structural dimensions. After finishing the structure design, we analyze the static characteristics of the designed bearing from the aspects like oil film pressure, oil film thickness, bearing capacity and so on, combining with the relevant Matlab program and provide a reference for the subsequent theoretical analysis after completing the subsequent bearing on-machine test.