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Coupled Bending-Bending-Torsion Vibration of a Pre-Twisted Beam with Aerofoil Cross-Section by Finite Element Method

Shock and Vibration 1070-9622 0 by Bulent Yardimoglu and Daniel J. Inman Coupled bending-bending-torsion vibration of a pre-twisted beam with aerofoil cross-section by finite element method - p

Coupled Bending-Bending-Torsion Vibration of a Pre-Twisted Beam with Aerofoil Cross-Section by the Finite Element Method

The present study deals with a finite element model for coupled bending-bending-torsion vibration analysis of a pretwisted Timoshenko beam with varying aerofoil cross-section. The element derived in this paper has two nodes, with seven degrees of freedom at each node. The nodal variables are transverse displacements, cross-section rotations and the shear angles in two planes and...

Coupled Bending-Bending-Torsion Vibration of a Rotating Pre-Twisted Beam with Aerofoil Cross-Section and Flexible Root by Finite Element Method

Daniel J. Inman 1 0 Department of Mechanical Engineering, Izmir Institute of Technology , 35430, Urla, Izmir , Turkey 1 Department of Mechanical Engineering, Center for Intelligent Materials and Structures

Vibration Suppression of a Large Beam Structure Using Tuned Mass Damper and Eddy Current Damping

For a few decades, various methods to suppress the vibrations of structures have been proposed and exploited. These include passive methods using constrained layer damping (CLD) and active methods using smart materials. However, applying these methods to large structures may not be practical because of weight, material, and actuator constraints. The objective of the present study...

Structural health monitoring using piezoelectric impedance measurements

This paper presents an overview and recent advances in impedance-based structural health monitoring. The basic principle behind this technique is to apply high-frequency structural excitations (typically greater than 30 kHz) through surface-bonded piezoelectric transducers, and measure the impedance of structures by monitoring the current and voltage applied to the piezoelectric...