Related Experiment Video
Updated: Sep 29, 2025

Data Acquisition Protocol for Determining Embedded Sensitivity Functions
Published on: April 20, 2016
Analytical Solution for Forced Vibration Characteristics of Rotating Functionally Graded Blades under Rub-Impact and
Tianyu Zhao1, Yuxuan Wang1, Xinze Cui2
1Key Laboratory of Structural Dynamics of Liaoning Province, School of Science, Northeastern University, Shenyang 110819, China.
Abstract:
This paper presents an analytical investigation on the forced vibration characteristics of a rotating functionally graded material (FGM) blade subjected to rub-impact and base excitation. Based on the Kirchhoff plate theory, the rotating blade is modelled theoretically. The material properties of the FGM blade are considered to vary continuously and smoothly along the thickness direction according to a volume fraction power-law distribution. By employing Hamilton's principle, the equations of motion are derived. Then, the Galerkin method and the small parameter perturbation method are utilized to obtain the analytical solution for the composite blade under a combined action of radial force, tangential force and displacement load. Finally, special attention is given to the effects of power-law index, rub-impact location, friction coefficient, base excitation amplitude and blade aspect ratio on the vibration characteristics of the FGM structure. The obtained results can play a role in the design of rotating FGM blades to achieve significantly improved structural performance.
Related Concept Videos
Residual Stresses in Circular Shafts
Thin-Walled Hollow Shafts
Design of Transmission Shafts - Stress Analysis
Relative Motion Analysis using Rotating Axes-Problem Solving
Here, in order to determine the magnitude of velocity and acceleration for point...
Mechanical Systems
Stresses in a Shaft
Applying equilibrium conditions to the QR segment establishes that the internal shearing forces within the...

