Dynamic analysis of the single rotor-bearing system considering the comprehensive stiffness and damping

Abstract The rotor system supported by the cylindrical roller bearings is widely used in various fields, such as aviation, space and machinery due to its importance. In study of analysis vibration characteristics system, it important accurately calculate stiffness damping bearings. Therefore, this paper, dynamic simple rotor-bearing were analyzed based on new model considering comprehensive bearing. consideration radial clearance bearing, load acting bearing derived this, Hertz contact obtained. After obtaining oil film according EHL theory, was calculated combining a created, created using MATLAB program. amplitude reduced 18.2% compared case where not considered. This shows that structure has restraining effect unbalanced response system.