Viscoelastic Layer under Moving Load: Vibration Response using a Coiflet Expansion and the Finite Element Method

2012 ◽  
Author(s):  
M.M. Neves ◽  
P. Koziol
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Moving Load ◽  
Vibration Response ◽  
Viscoelastic Layer ◽  
The Finite Element Method ◽  
Element Method

Random vibration response of cantilever plates using the finite element method

AIAA Journal ◽  
1970 ◽  
Vol 8 (10) ◽  
pp. 1905-1907 ◽  
Author(s):  
ALFRED T. JONES ◽  
CHARLES W. BEADLE
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Random Vibration ◽  
Vibration Response ◽  
The Finite Element Method ◽  
Element Method

Parameters Performance to the Vibration Isolation in Three-Dimensional Elastic Floating Raft Isolation System

2012 ◽  
Vol 472-475 ◽  
pp. 2659-2662 ◽  
Author(s):  
Guo He Jiang ◽  
Gang Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Vibration Isolation ◽  
Three Dimensional ◽  
Vibration Response ◽  
System Model ◽  
The Finite Element Method ◽  
Isolation System ◽  
Floating Raft ◽  
Element Method

Based on the three-dimensional elastic floating raft isolation system model, this paper using the finite element method to calculate vibration response of the system, and then analyze the performance of floating raft under different mass and stiffness, providing useful conclusions for vibration isolation designing.

VIBRATION AND DAMPING STUDIES ON A HOLLOW SANDWICH BOX COLUMN WITH A VISCOELASTIC/ELECTRORHEOLOGICAL/MAGNETORHEOLOGICAL FLUID CORE LAYER BY THE FINITE ELEMENT METHOD

2008 ◽  
Vol 08 (04) ◽  
pp. 531-546 ◽  
Author(s):  
K. RAM KUMAR ◽  
N. GANESAN
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Natural Frequencies ◽  
Core Layer ◽  
Viscoelastic Layer ◽  
Complex Eigenvalue ◽  
The Finite Element Method ◽  
Mr Fluid ◽  
Fluid Core ◽  
Element Method

In this paper, the vibration and damping of a hollow sandwich box column containing a viscoelastic layer (VEL) or an electrorheological (ER) or magnetorheological (MR) fluid core with a constraining layer are analyzed and a comparison of performance is made. The hollow sandwich box column comprises two skin plates and a VEL/ER/MR fluid core layer. The finite element method is used to study the vibration and damping behaviors of the column. The natural frequencies and modal loss factors are obtained by solving the complex eigenvalue problem. The modal dampings and natural frequencies of the column are calculated for various electric as well as magnetic fields and their performance is compared with that of the viscoelastic core layer for the clamped-free boundary condition. Effects of core thickness, electric voltage and magnetic field on the vibration behavior of the sandwich box column are investigated.

scholarly journals Finite element modelling of moving loads on structures

2021 ◽  
Author(s):  
Gareth Forbes
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Moving Load ◽  
Equations Of Motion ◽  
Moving Loads ◽  
The Finite Element Method ◽  
Structure Development ◽  
Simply Supported ◽  
Ansys Apdl ◽  
Element Method

This paper provides a breif description of the moving load problem (force or mass) across a structure. Development of a matlab script to solve the analytical equations of motion is provided. The method of implementation to solve this type of structural dynamics, using the Finite Element Method is then described with a matlab script for a simply supported beam provided. Additionally, a script and method for implementing the Finite Element Method using ANSYS APDL is also given.

The Frequencies and Damping of a Cantilever Composite Plate With a Viscoelastic Layer

1995 ◽  
Author(s):  
P. Cupiał ◽  
J. Nizioł
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Ritz Method ◽  
Method Comparison ◽  
Viscoelastic Layer ◽  
The Finite Element Method ◽  
Complex Eigenvalues ◽  
Geometric Boundary ◽  
Loss Factors ◽  
Element Method

Abstract In the paper the natural frequencies and modal loss factors of a three-layered rectangular cantilever plate with high-modulus composite face layers and a viscoelastic mid-layer are discussed. Two analysis approaches are considered, the Ritz method and the finite element method. The Ritz analysis is based on an appropriate 2-D plate model. Algebraic polynomials are used which satisfy the necessary geometric boundary conditions. The discretized eigenvalue problem is then solved for complex eigenvalues, from which damped frequencies and modal loss factors are extracted. Both frequencies and loss factors are shown to converge with an increasing number of the polynomials used. Apart from the Ritz method, frequencies and modal loss factors are calculated by the finite element method based on the so-called strain energy method. Comparison between the two approaches is then given.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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