Study on the nonlinear dynamics of the rotor-bearing-seal system for the large scale rotating machinery

Author

Kong, Da ; Li, Zhonggang ; Jiao, Yinghou

Author_Institution

Coll. of Water Conservancy & Electr. Power, Heilongjiang Univ., Harbin, China

fYear

2012

fDate

24-26 Aug. 2012

Firstpage

1300

Lastpage

1303

Abstract

Along with increase of the fluid parameters for the high-performance rotating machinery, the fluid induced force of the seals signally influenced the rotor system. In this paper, it mainly presents the effect of the fluid induced force on the rotor-bearing-seal system, and the nonlinear dynamic functions of the rotor-seal system are obtained with the Capone oil-film force model and Muszynska fluid-induced force model. The dynamic characteristics of the system at the different parameters are analyzed by the periodical responses, Poincaré maps, frequency spectrums charts, bifurcation charts, etc. The abundant nonlinear dynamic behaviors of the system are revealed by the nonlinear effects.

Keywords

Poincare mapping; bifurcation; machine bearings; rotors; seals (stoppers); turbomachinery; Capone oil-film force model; Muszynska fluid-induced force model; Poincare maps; abundant nonlinear dynamic behaviors; bifurcation charts; dynamic characteristics; fluid induced force; fluid parameters; frequency spectrums charts; high-performance rotating machinery; large scale rotating machinery; nonlinear dynamic functions; nonlinear dynamics; nonlinear effects; periodical responses; rotor-bearing-seal system; rotor-seal system; Bifurcation; Resonant frequency; Rotors; Seals; bifurcation; fluid induced force; nonlinear dynamic; oil film force; rotordynamic;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Processing (CSIP), 2012 International Conference on

Conference_Location

Xi´an, Shaanxi

Print_ISBN

978-1-4673-1410-7

Type

conf

DOI

10.1109/CSIP.2012.6309100

Filename

6309100