Welcome to Journal of Mechanical Design and Vibration

The aim of Journal of Mechanical Design and Vibration [JMDV] is to act as a platform for dissemination of innovative and original research and development work in the area of mechanical design, acoustics and vibration. The Journal of Mechanical Design and Vibration communicates original contributions of permanent interest on all aspects of the design and vibrations of mechanical systems. The Journal publishes technical briefs, design and vibration related innovative papers, discussions of published papers with rebuttal, book reviews, and editorials. Articles may be theoretical or experimental in nature. But those which combine theoretical and experimental approaches to solve design, acoustic and vibration problems are particularly welcome.

ISSN (Print): 2376-9564

ISSN (Online): 2376-9572

Editor-in-Chief: Shravan H. Gawande

Website: http://www.sciepub.com/journal/JMDV

   

Article

Vibration and Parametric Instability of Functionally Graded Material Plates

1Department of Mechanical Engineering, NIT, Rourkela, India


Journal of Mechanical Design and Vibration. 2014, 2(4), 102-110
doi: 10.12691/jmdv-2-4-5
Copyright © 2014 Science and Education Publishing

Cite this paper:
Ramu I, Mohanty SC. Vibration and Parametric Instability of Functionally Graded Material Plates. Journal of Mechanical Design and Vibration. 2014; 2(4):102-110. doi: 10.12691/jmdv-2-4-5.

Correspondence to: Ramu  I, Department of Mechanical Engineering, NIT, Rourkela, India. Email: ram.journals@gmail.com

Abstract

The present work aims the vibration and parametric instability of functionally graded material rectangular plates with simply supported boundary condition, subjected to a biaxial in-plane periodic loading. First order shear deformation theory is used for theoretical formulation of FGM plates. The properties of the functionally graded material plates are assumed to vary along the thickness direction according to a power law distribution in terms of the volume fractions of the constituents. Hamilton’s principle is employed to convert the governing equations into a linear system of Mathieu–Hill equations from which the boundary of stable and unstable regions are determined by using Floquet’s theory on the parameter space. Natural frequency and buckling analysis are also discussed. Numerical results are presented in both dimensionless parameters and graphical forms for FGM plates made of steel and alumina. The influences of various parameters such as index value, aspect ratio on the buckling load and natural frequencies are examined. Power law index value and aspect ratio effects on the dynamic stability regions also studied in detail.

Keywords

References

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Article

Extracted Biodiesel as Feed for Internal Combustion Engine

1Department of Mechanical Engineering, KIOT Wollo University, Kombolcha (SW), Ethiopia

2Department of Chemical Engineering, KIOT Wollo University, Kombolcha (SW), Ethiopia


Journal of Mechanical Design and Vibration. 2015, 3(1), 1-7
doi: 10.12691/jmdv-3-1-1
Copyright © 2015 Science and Education Publishing

Cite this paper:
Wubishet Degife, Melkamu Ashenafi, Raja Thiyagarajan, Omprakash Sahu. Extracted Biodiesel as Feed for Internal Combustion Engine. Journal of Mechanical Design and Vibration. 2015; 3(1):1-7. doi: 10.12691/jmdv-3-1-1.

Correspondence to: Omprakash  Sahu, Department of Chemical Engineering, KIOT Wollo University, Kombolcha (SW), Ethiopia. Email: ops0121@gmail.com

Abstract

Diesel fuel is very important for countries’ economy due to it has wide area of usage such as long haul truck, transportation, railroad, agricultural and construction equipment. Diesel fuel contains different hydrocarbons sulfur and contamination of crude oil residues. On the other side biodiesel does not contain any sulfur, aromatic hydrocarbons, metals and crude oil residues, which reduced the pollution level in Environment. In this work sunflower oil is used for production of biodiesel. In experiment catalysis loading 20%wt/wt, average 5 h methanol oil ration 15:1 and reaction temperature 150°C found to be suitable for biodiesel production. As well as 20% of biodiesel added with diesel show good performance in internal combustion engine.

Keywords

References

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Article

Damage Identification in Composite Beam by Vibration Measurement and Fuzzy Inference System

1Department of Mechanical Engineering, National Institute of Technology, Rourkela, India


Journal of Mechanical Design and Vibration. 2015, 3(1), 8-23
doi: 10.12691/jmdv-3-1-2
Copyright © 2015 Science and Education Publishing

Cite this paper:
Irshad Ahmad Khan, Dayal Ramakrushna Parhi. Damage Identification in Composite Beam by Vibration Measurement and Fuzzy Inference System. Journal of Mechanical Design and Vibration. 2015; 3(1):8-23. doi: 10.12691/jmdv-3-1-2.

Correspondence to: Dayal  Ramakrushna Parhi, Department of Mechanical Engineering, National Institute of Technology, Rourkela, India. Email: irshadak85@gmail.com, drkparhi@nitrkl.ac.in

Abstract

A significant efforts have been done by scientists and researchers in the last few years to develop many non-destructive techniques for damage recognition in a beam like dynamic structures. In this paper, theoretical, numerical, fuzzy logic methods employed for diagnosis of damage in the form of cracks of the cantilever composite beam with an aim to detect, quantify, and determine its intensity and locations. The Glass fiber reinforced epoxy composite engaged in the analysis due to high strength and stiffness-to-weight ratios. The theoretical analysis is performed to get the relationship between change in natural frequencies and mode shapes for the cracked and non-cracked composite beam. The Numerical analysis is performed on the cracked composite beam to get the vibration parameters such as natural frequency and mode shape, which is used to design fuzzy logic, based smart artificial intelligent technique for predicting crack severity and its intensity. Online fuzzy based smart technique has been developed, first three natural frequencies and mode shapes used as input parameters, Gaussian membership functions is considered to detect cracks location and depth. The results of theoretical and numerical analysis are compared with experimental results having good agreement with the results predicted by the fuzzy inference system.

Keywords

References

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