Development of hardfaced crusher jaws using ferro-alloy hardfacing inserts and low carbon steel substrate

The dynamic behavior of a rotordynamic system is greatly affected by the dynamic performance of aerodynamic bearing and the performance of bearing is characterized by the stiffness and damping coefficient of bearing. In the present work, stiffness and damping coefficient of bearing are computed and the performance of these bearing is greatly changed with the change in bearing air film profile. In the present work, the effect of lobe offset factor on the transient performance of aerodynamic bearing is presented. Bifurcation and Poincare diagram of two lobe journal bearing has been presented for different offset factor. A bearing designer can judge a bearing performance on the basis of bifurcation diagrams.