scholarly journals Structural and Vibration Analysis of a Machine Shaft using Finite Element Analysis

2019 ◽  
Vol Volume-3 (Issue-4) ◽  
pp. 627-632 ◽  
Author(s):  
Syed Minal Hussian Jafri ◽  
Prof Amit Kaimkuriya ◽  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Analysis ◽  
Element Analysis

Application of ESPI in the Vibration Analysis of Turbine Blading

1995 ◽  
Author(s):  
Robert X. Wang ◽  
Graham M. Chapman
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Analysis ◽  
Speckle Pattern ◽  
Vibration Measurement ◽  
Simplified Model ◽  
Electronic Speckle Pattern Interferometry ◽  
Coupled Modes ◽  
Element Analysis ◽  
Turbine Blading

Abstract This paper reports on the application of Electronic Speckle Pattern Interferometry (ESPI) technique in vibration measurement of turbine blading. Using the time-averaged mode of ESPI, the first six modes of a turbocharger blade with airfoil profile were identified. The effect of the complicated profile of the blade was established by studying simplified model blades. Coupled modes were identified and successfully separated. Experimental results are compared with those obtained using finite element analysis.

Investigation of stiffness of small wind turbine blade based on vibration analysis technique

2019 ◽  
Vol 44 (1) ◽  
pp. 49-59
Author(s):  
Nilesh Chandgude ◽  
Nitin Gadhave ◽  
Ganesh Taware ◽  
Nitin Patil
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Vibration Analysis ◽  
Natural Frequencies ◽  
Mode Shapes ◽  
Element Analysis ◽  
Finite Element Software ◽  
Small Wind Turbine

In this article, three small wind turbine blades of different materials were manufactured. Finite element analysis was carried out using finite element software ANSYS 14.5 on modeled blades of National Advisory Committee for Aeronautics 4412 airfoil profile. From finite element analysis, first, two flap-wise natural frequencies and mode shapes of three different blades are obtained. Experimental vibration analysis of manufactured blades was carried out using fast Fourier transform analyzer to find the first two flap-wise natural frequencies. Finally, the results obtained from the finite element analysis and experimental test of three blades are compared. Based on vibration analysis, we found that the natural frequency of glass fiber reinforced plastic blade reinforced with aluminum sheet metal (small) strips increases compared with the remaining blades. An increase in the natural frequency indicates an increase in the stiffness of blade.

scholarly journals What's that Noise?

2011 ◽  
Vol 133 (10) ◽  
pp. 44-45
Author(s):  
Lynn Manning
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Automotive Industry ◽  
Vibration Analysis ◽  
Instrument Panel ◽  
Analysis Method ◽  
Element Analysis ◽  
Noise And Vibration ◽  
To Come ◽  
Testing Company

This article focuses on various features of a finite element analysis (FEA) program designed by IDIADA, a Barcelona-based company providing design, engineering, testing, and homologation services to the automotive industry. The program has been designed as a solution to the problem of squeaks and rattles in an automobile. FEA software used by engineers from automotive testing company IDIADA detects potential automotive noise. The company uses Abaqus Unified Finite Element Analysis from Dassault Systèmes’ brand Simulia. The team delivered a paper at the Simulia Customer Conference in Barcelona in May 2011 to present the latest improvements in their methodology, applied to rattle in a car instrument panel and correlated with real-world testing. Research has shown that a standard noise-and-vibration analysis method alone can’t model, or predict, the contact that will result in a rattle. The engineers need to come up with a simulation that can accommodate both frequency for noise and vibration and contact for squeak and rattle.

Finite Element Analysis (FEA) of Honeycomb Sandwich Panel for Continuum Properties Evaluation and Core Height Influence on the Dynamic Behavior

2011 ◽  
Vol 326 ◽  
pp. 1-10 ◽  
Author(s):  
Hammad Rahman ◽  
Rehan Jamshed ◽  
Haris Hameed ◽  
Sajid Raza
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Solution ◽  
Vibration Analysis ◽  
Sandwich Structure ◽  
Sandwich Panel ◽  
Fe Analysis ◽  
Element Analysis ◽  
Honeycomb Sandwich ◽  
Core Height

Finite element analysis of honeycomb sandwich panel has been performed by modeling the structure through three different approaches. Continuum properties are calculated through analytical solution and verified through FE analysis of bare core. In addition to that the thickness of core has also been varied in all the three approaches in order to study its effect on vibration analysis of sandwich structure.

Development of Energy Finite Element Analysis in Vibration Analysis of Composite Laminate Plate Structures

2013 ◽  
Vol 470 ◽  
pp. 1020-1023
Author(s):  
Yang Yang ◽  
Xi Liang Chen ◽  
Wen Wu Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Density ◽  
Vibration Analysis ◽  
Composite Laminate ◽  
Laminate Plate ◽  
Element Analysis ◽  
Plate Structure ◽  
Composite Laminate Plate ◽  
Energy Finite Element Analysis

The high frequency vibration analysis of a composite laminate plate structure subjected to impact loads was investigated by using method of energy finite element analysis (EFEA). The time and space averaged energy density was used as the primary variable to form the governing differential equations. The multilayer laminate plate is simplified to be equivalent isotropic plate using the average concept, such as the average damping loss factor and the average group speed. The global system of EFEA equations can be solved numerically and the energy density distribution within the whole system can then be obtained. The EFEA numerical results for composite laminate plate structure were validated through comparison with those of very dense conventional finite element analysis (FEA).

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