Dynamics and Fault Diagnosis of Nonlinear Rotors and Impellers

This contributed volume presents recent developments in nonlinear dynamics applied to engineering. Specifically, the authors address stability and bifurcation in large-scale, complex rotor dynamic systems; periodic motions and their bifurcations in nonlinear circuit systems, fault diagnosis of complex engineering systems with nonlinear approaches, singularities in fluid-machinery and bifurcation analysis, nonlinear behaviors in rotor dynamic system with multi-mistuned blades, mode localization induced by mistuning in impellers with periodical and cyclic symmetry, and nonlinear behaviors in fluid-structure interaction and their control. These new results will maximize reader understand on the recent progress in nonlinear dynamics applied to large-scale, engineering systems in general and nonlinear rotors and impellers in particular.

Presents stability and bifurcation in large-scale, complex rotor dynamic systems Discusses singularities in fluid-machinery and bifurcation analysis Discusses mode localization in impellers with periodical and cyclic symmetry

Auteur

Dr. Jiazhong Zhang is Professor, Xi'an Jiaotong University, Xi'an, Shaanxi Province, P. R. China.

Contenu

1-Periodic motions to chaos in a nonlinear rotor system.- 2-Research on Fault Diagnosis of Gear Based on Permutation Entropy and SVM Method.- 3-Dynamical Characteristics Analysis of Rotor Model with Coupling Faults and Applications of TPOD Method.- 4-Nonlinear and Linear Phenomenon Investigation of Coupled Vibration of a Multi-disc Rotor Based on Multi-mistuned Blades Length or Multi-disordered Staggle Angle Blades.- 5-Lateral-torsional-coupled Model-Based Dynamic Analyses of Spur Gears under Time-varying External Load Conditions with Surface Wear.- 6-Experimental and Numerical Studies on Compressor Nonlinear Behaviors with Inlet Distortion and Their Interaction.- 7-Study on Mode Localization Induced by Material and Aerodynamic Mistunings in Impellers with Periodical and Cyclic Symmetry.- 8-Fluid-Structure Interactions of a Perimeter-Reinforced Membrane Wing in Laminar Shear Flow.- 9-Periodic Motions and Bifurcations in a Double Pendulum.- 10-Analytical Periodic Motions for a First-Order Nonlinear Circuit System under Different Excitations.- 11-Model Reduction on Approximate Inertial Manifolds for NS Equations through Multilevel Finite Element Method and Hierarchical Basis. <p