Experimental analysis of electromagnetic vibration damping of a cantilever beam

2015 ◽  
Author(s):  
M. R. Siddiqui ◽  
I. Ahmad ◽  
M. Khan ◽  
S.M. Ahmad
Keyword(s):  
Cantilever Beam ◽  
Experimental Analysis ◽  
Vibration Damping ◽  
Electromagnetic Vibration

Controllable Truss-Frame Nodes in Semi-Active Damping of Vibrations

2016 ◽  
Vol 101 ◽  
pp. 89-94 ◽  
Author(s):  
Blazej Poplawski ◽  
Cezary Graczykowski ◽  
Łukasz Jankowski
Keyword(s):  
Cantilever Beam ◽  
Control Strategy ◽  
Strain Energy ◽  
Vibration Mode ◽  
Vibration Damping ◽  
Active Damping ◽  
Active Management ◽  
Complex Structures ◽  
Published Research ◽  
Damping Of Vibrations

In recent years, vibration damping strategies based on semi-active management of strain energy have attracted a large interest and were proven highly effective. However, most of published research considers simple one degree of freedom systems or study the same basic example (the first vibration mode of a cantilever beam) with the same control strategy. This contribution focuses on truss-frame nodes with controllable moment-bearing ability. It proposes and tests an approach that allows the control strategy to be extended to more complex structures and vibration patterns.

scholarly journals Experimental Analysis of a Cantilever Beam with a Shunted Piezoelectric Periodic Array

2011 ◽  
Vol 22 (11) ◽  
pp. 1177-1187 ◽  
Author(s):  
Benjamin S. Beck ◽  
Kenneth A. Cunefare ◽  
Massimo Ruzzene ◽  
Manuel Collet
Keyword(s):  
Cantilever Beam ◽  
Experimental Analysis ◽  
Periodic Array

scholarly journals New Method of Temperature and Strain Decoupling Based on Directivity of Fiber Bragg Grating Sensing

2021 ◽  
Vol 2101 (1) ◽  
pp. 012023
Author(s):  
Xiao Huang ◽  
Zhenkun Jin ◽  
Qing Shen
Keyword(s):  
Fiber Bragg Grating ◽  
Cantilever Beam ◽  
Experimental Analysis ◽  
Strain Measurement ◽  
The Other ◽  
New Method ◽  
Bragg Grating ◽  
Center Wavelength ◽  
Influence Of Temperature ◽  
Sensing Characteristics

Abstract Fiber Bragg Grating (FBG) has been widely used in temperature and strain measurement. Its center wavelength drift is affected by both temperature and strain. The influence of temperature and strain on center wavelength should be decoupled when measuring. In this paper, the sensing characteristics of FBG which pasted at different angles were simulated and analyzed, and it was found that FBG sensing for strain has strong directivity. A dual FBG composite construction based on the directivity of FBG sensing was proposed. Two FBGs were at an Angle of 62°. One FBG was sensitive to both temperature and strain, and the other was only sensitive to temperature. The structure can realize the decoupling of temperature and strain, and it doesn’t depend on feature of cantilever beam. It was verified by experimental analysis that the decoupling result was good by utilizing the combined FBG structure, and decoupling was realized easily.

scholarly journals Vision Analysis of the Influence of Piezoelectric Energy Harvesting on Vibration Damping of a Cantilever Beam

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7168
Author(s):  
Dariusz Grzybek ◽  
Andrzej Sioma
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
Load Resistance ◽  
Vibration Damping ◽  
Laboratory Research ◽  
Passive Damping ◽  
Shunt Resistance ◽  
Piezoelectric Energy ◽  
Harvesting Process ◽  
The Given

A cantilever beam, manufactured from a steel-carrying substrate and two patches of Macro Fiber Composite of P2 type, was a subject of laboratory research. MFC patches were glued on both sides of the carrying substrate and were parallelly connected. An experimental determination of an optimal resistance for both energy harvesting and vibration passive damping of the cantilever beam was the purpose of the conducted laboratory research. The research contained 10 experiments in which courses of the energy-harvesting process and resistive passive damping of vibration were estimated. Energy harvesting was estimated by measurements of the generated current for the given load-resistance values. Resistive passive damping of vibration was assessed by using a vision method that enabled the displacements’ measurements of 10 selected points in the beam structure for the given shunt-resistance values. Values of both load resistance and shunt resistance were chosen on the basis of analytically calculated optimal load resistance and optimal shunt resistance. On the basis of the conducted experiments, the resistance range for which both the energy-harvesting process and the vibration-damping process are most effective was determined.

Effect of interfacial properties on the damping performance of steel–polymer sandwich cantilever beam composites

2021 ◽  
pp. 107754632110482
Author(s):  
Sungjin Han ◽  
Woong-Ryeol Yu
Keyword(s):  
Cantilever Beam ◽  
Adhesion Strength ◽  
Loss Factor ◽  
Interfacial Adhesion ◽  
Heterogeneous Materials ◽  
Adhesive Layer ◽  
Core Layer ◽  
Vibration Damping ◽  
Interfacial Adhesion Strength ◽  
Sandwich Model

The damping performance of lightweight steel/polymer/steel sandwich composites has been typically studied without considering the interface between the heterogeneous materials. Herein, the interface between the steel and polymer layers was investigated experimentally for various steels and polymers. Impact hammer tests revealed that the interfacial adhesion strength between steel and polymer did not significantly affect the loss factor of the sandwich cantilever beam composites. However, although very thin, the adhesive layer itself greatly influenced the vibration-damping performance of the composite. As such, previous three-layered (skin-core-skin) sandwich model without considering the properties of adhesive layer predicted different results from experiments. To accurately predict the loss factor of the sandwich, a five-layered sandwich model consisting of two skins, two adhesives, and a core layer was proposed and validated with experiments.

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