Usage of the Lund Rotordynamic Programs in the Analysis of Centrifugal Compressors

Abstract

This paper is intended to be a history of the usage of the Jørgen Lund rotordynamic programs in the analysis of centrifugal compressors from the perspective of the author’s experience in that industry. Application of the Lund tilt pad bearing, rotor response, and stability programs will be described. They will be seen to be the basis for an industry wide acceptance criterion for the rotor dynamics of centrifugal compressors. They are used in the required audit reports for new compressors, and in trouble shooting investigations on the rotordynamics of centrifugal compressors.