Evaluation of Dynamic Behavior of a Rotor-Bearing System in Operating Conditions

M.H. Jalali, B. Shahriari, M. Ghayour, S. Ziaei-Rad and S. Yousefi

World Academy of Science, Engineering and Technology,International Journal of Mechanical and Mechatronics Engineering, Volume 8, October 2014

ABSTRACT

Most flexible rotors can be considered as beam-like structures. In many cases, rotors are modeled as one-dimensional bodies, made basically of beam-like shafts with rigid bodies attached to them. This approach is typical of rotor dynamics, both analytical and numerical, and several rotor dynamic codes, based on the finite element method, follow this trend. In this paper, a finite element model based on Timoshenko beam elements is utilized to analyze the lateral dynamic behavior of a certain rotor-bearing system in operating conditions.

Keywords:

A. Direction of Arrival; B. Autocorrelation matrix; C. Eigenvalue decomposition; D. MUSIC, E.ESPRIT, F.CRLB.

Link to Journal Webpage