Study on the Calculation Methods for Weak-Nonlinear Rotor System and its Response

Abstract:

The operation condition of the rotor system is strong nonlinear state; even with severe breakdown, weak nonlinear state appears; due to the nature of the rotor system is nonlinear. The system of the weak nonlinear state could mutate for strong nonlinear state. So the rotor system of weak nonlinear state vector in the system analysis and fault diagnosis is very important. Therefore, this paper analyzes universality of weak nonlinear of the system. It introduces segmentation system displacement vector into two little freedom of time to approximate equation system vector into a order system method.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 108-111
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.108
• Online since: September 2012
• Authors: Gui San Li
• Keywords: Calculation, Nonlinear, Response, Vibration

References

[1] Fulei Chu, Guisan Li: Analysis of the Movement Stability in the Rotor - Damper - Seal System. Tsinghua University Press, 38(8) (1998), p.107~110.

[2] Guisan Li, Lianghua Mao: Discussions on the Analysis Methods Used to Analyze Nonlinear Dynamic Characteristic of Sliding Bearing Oil Film. Fan Technology, 184 (2004)，p.54～56.

[3] Guisan Li, Wei Zhang: Stability Comparison of Elliptic Tile Sliding Bearing and Three Oil Wedges Sliding Bearing. Fan Technology, 179(2004)，p.56～61.

[4] Guisan Li, Wei Zhang: Fault Diagnosis of Instability of the Rotor System and Analysis to the Flow Regime of the Lubrication Fluid. Fan Technology, 170(2002)，p.51～54.

[5] ZhengsongZhang: Testing and Fault Diagnosis of Rotating Machinery Vibration. Beijing, Machinery Industry Press. (1991).