Vibration Response of Sandwich Beam with Viscoelastic Core and FGM Face Sheets Using Finite Element Method

2019 ◽  
pp. 377-386
Author(s):  
I. Ramu ◽  
M. Raghuraman ◽  
K. V. G. R. Seshu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Sandwich Beam ◽  
Vibration Response ◽  
Viscoelastic Core ◽  
Element Method

Power Flow Finite Element Analysis of Dynamic Systems: Basic Theory and Application to Beams

1989 ◽  
Vol 111 (1) ◽  
pp. 94-100 ◽  
Author(s):  
D. J. Nefske ◽  
S. H. Sung
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Systems ◽  
Power Flow ◽  
Control Volume ◽  
Flow Analysis ◽  
Vibration Response ◽  
Element Analysis ◽  
Power Flow Analysis ◽  
Element Method

A power flow analysis has been developed for predicting the vibration response of dynamic systems to high frequencies at which the traditional finite element method is no longer practical. As compared to Statistical Energy Analysis, which predicts an overall vibration response of each dynamic subsystem, the power flow analysis enables one to predict the spatial variation of the vibration response within each subsystem, as well as the power flow and vibration response throughout the entire system. The formulation of the power flow analysis is based on a differential, control-volume approach and is shown to result in a partial differential equation of the heat conduction type which can be solved by applying the finite element method. Example applications to (1) an uncoupled beam and (2) two coupled beams are presented to illustrate the analysis.

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

513 Nonlinear vibration response analysis for an automotive sound proof structure supported by nonlinear springs using fast finite element method

2012 ◽  
Vol 2012 (0) ◽  
pp. _513-1_-_513-13_
Author(s):  
Kazuhiro TOBITA ◽  
Takao YAMAGUCHI ◽  
Yuta HIRANO ◽  
Hiroaki HOZUMI ◽  
Kenichi NAGAI ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nonlinear Vibration ◽  
Vibration Response ◽  
Response Analysis ◽  
Nonlinear Springs ◽  
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.

Analysis of Flow-Induced Vibration of the Volute of a Centrifugal Pump Based on Finite Element Method

2010 ◽  
Author(s):  
Jianping Yuan ◽  
Yun Liang ◽  
Shouqi Yuan ◽  
Haifang Xiong ◽  
Ji Pei
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Unsteady Flow ◽  
Centrifugal Pump ◽  
Radial Force ◽  
Vibration Response ◽  
Flow Induced Vibration ◽  
Hydraulic Force ◽  
Blade Frequency ◽  
Element Method

During the operation of centrifugal pumps, radial hydraulic force is generated due to non-uniform flow within pumps, which is one of the main sources of the vibration of the centrifugal pump volute. In this paper, based on CFD and finite element method, it was calculated and analyzed that the volute vibration of a centrifugal pump caused by radial hydraulic force. The reason of the occurrence of radial force was analyzed, and by simplifying the theoretical formulas the force was calculated. Then the unsteady flow field of a centrifugal pump was simulated and analyzed under different running conditions by CFD method. Based on the simulation results, the radial hydraulic force of the pump was calculated. Finally, vibration response of the pump volute due to the hydraulic radial force was obtained. By analyzing the vibration response datum, vibration parameters were got such as the displacement, velocity and acceleration of vibration. It was obtained that the main vibration frequencies of the pump volute which is caused by unsteady flow are blade frequency and its harmonic frequencies. The pump volute has a minimum vibration under design flow rate condition, and it has a maximum vibration at the 1.5 times design rated flow whilst the vibration frequency is the integral multiple of the blade frequency. This study is helpful to understand the flow-induced vibration of pump volute and to improve the hydraulic design of the centrifugal pump.

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