Forced Response of Harmonic Mistuned Blade Disks

Kuang Chyi Lee; Kuang Chih Li; Hsin Her Yu; Chien Chang Lin

doi:10.4028/www.scientific.net/KEM.324-325.145

Paper Titles

Real-Time Monitoring and Simulating the Load Effects of Smart” CFRP- Strengthened RC Beams
p.129

Fracture and Crack Mechanism of Bond-Slip Behaviors in SRC Composite Structures
p.133

Fracture Analysis of Side-Gusset Plate of Combined-Roller Based on Finite Element Method
p.137

Large Deformation Dynamic Meshfree Simulation of Damage and Failure in Geomaterials
p.141

Forced Response of Harmonic Mistuned Blade Disks
p.145

Interfacial Fracture Toughness of Adhesively Bonded Joints
p.149

Tensile Failure for Notched Unidirectional Laminates
p.153

Testing System for Mechanical Behaviors Analysis and Cracking Resistance of Concrete at Early Age
p.157

Crack Identification by Jointly Time-Frequency Analysis
p.161

HomeKey Engineering MaterialsKey Engineering Materials Vols. 324-325Forced Response of Harmonic Mistuned Blade Disks

Forced Response of Harmonic Mistuned Blade Disks

Abstract:

In this paper, by adopting the continuous ring model and the perturbation analysis for free vibration, the authors showed the reason and the importance for the modes split phenomena and provided the qualitative relation between modes split and perturbation for the harmonic number of stiffness perturbation. Also through the modal analysis for forced vibration the authors showed possible ways to predict and prevent the worst case when blade will crack. That is, the harmonic number for stiffness distribution should be avoided to be twice the engine order.