A: Mechanical & Mechanics (181)
GJRE: A
Fast Pyrolysis of Tectonagrandis Wood for Bio-Oil: Characterization and Bactericidal Potentials
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 17 Issue: 1 In this study, Tectona grandis was pyrolysed in a fixed-bed cylindrical-typed pyrolysis reactor for bio-oil production at a reaction temperature between 410 oC and 530 oC. The product yields were collected at an interval of 30 oC. The highest product yield occurred at 500 oC. Proximate and ultimate analyses were carried out using iso-conversional methods and GC-MS, respectively. The prox...
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Authors Oyebanji, J.A., Ololade, Z.S.Read Journal Click Here
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Page No. 31 to 37
Experimental Study of MRR, TWR, SR on AISI D2 Steel using Aluminium Electrode on EDM
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 17 Issue: 1 This paper depicts the experimental study of the input parameters of EDM i.e. current, pulse on time and pulse off time on output parameters material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR). The workpiece materials selected was AISI D2. The aluminium used as tool electrode and EDM oil as dielectric fluid. Taguchi, method was used to perform experiments, L9 ort...
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Authors Sidhant Gupta, Dr. S.K. Jain, Gurpinder SinghRead Journal Click Here
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Page No. 17 to 22
Design Optimization of Golf Clubhead and Ball with Numerical Analysis
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 17 Issue: 1 The design optimizations of a golf clubhead and a ball were performed with numerical experiments. The golf clubhead was designed for maximizing the flying distance of a golfball. The thickness distribution of the clubface, the shape of the clubhead and the mass distribution were set to be the design variables. Since the sensitivity function of this kind of problem is difficult to be deri...
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Authors Zhiqiang Wu, Takayuki Tamaoki, Yuji Sogabe, Yutaka ArimitsuRead Journal Click Here
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Page No. 23 to 29
Reduction of Production Lead Time using Value Stream Mapping (VSM) Technique
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 17 Issue: 1 Value Stream Mapping (VSM) is a special type of flow chart that uses symbols known as "the language of Lean" to depict and improve the flow of inventory. In this research, process time and other unnecessary non value added activities of a battery manufacturing company have been reduced by using various lean manufacturing tools. The current situation is analyzed by showing a current state...
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Authors Mirza Md. Sayeed HasanRead Journal Click Here
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Page No. 1 to 7
Characterization and Simplified Modeling of the Failure Behavior of Spot Welds from Extra-High Strength Steels for Crash Simulation
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 Vehicle collision characteristics significantly influenced by spot welded joints in vehicle steel body components. In engineering practice, spot welds are normally not modeled in detail, but as connection elements which transfer forces and moments. Therefore a proper methodology for the development detailed weld model to study structural response of the weld when the applied load range i...
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Authors Sachin Patil, Hamid LankaraniRead Journal Click Here
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Page No. 75 to 83
Numerical Investigation of Spring Back on Sheet Metal Bending Process
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 Spring back is the main defect in sheet metal bending process. The spring back of sheet metal bending, which is defined as elastic recovery of the part during un loading conditions. It should be taken in to considerations so as to produce bent sheet metal parts within acceptable quality. Spring back is affected by the factors such as; sheet thickness, tooling geometry, friction condition...
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Authors Alie Wube DametewRead Journal Click Here
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Page No. 33 to 54
Performance of Composite Structures Subjected to High Velocity Impact – Review
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 In recent years, breakthrough in the development of modelling techniques and impact analysis of composite materials subjected to high velocity has been made. The study methodically reviews the modelling techniques for the structural response of composite materials under high velocity. Although, report gives numerical model as widely used method, yet experimental test is always required t...
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Authors Enock A. DuoduRead Journal Click Here
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Page No. 55 to 64
Study of Minor Loss Coefficient of Flexible Pipes for Different Bend Angles and Different Bend Radius by Experiment and Simulation
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 The aim of this work is to investigate the minor loss for locally available bended flexible pipes of different dimensions. Minor loss coefficients for different bend angles and different bend radius of these pipes are ascertained, using both experimental method and numerical analysis. Different parameters on which Minor Loss depend were observed and their relations to the Minor Loss were...
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Authors M. S. Islam, Avizit Basak, M. A. R. Sarkar, M. Q. IslamRead Journal Click Here
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Page No. 27 to 32
Leakage and Cavity Shape Studies of Labyrinth Seals
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 Labyrinth seals are a non-contacting sealing device consists of a series of cavities connected by small clearances. They are used in many places in gas turbine engine to optimize and improve their design using CFD, is of interest to this study with newer designs of labyrinth seal. Preliminary investigations were carried out to establish the baseline capability for CFD analysis of labyrin...
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Authors R Mohana Rao, Dr. Manzoor HussianRead Journal Click Here
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Page No. 19 to 26
Transient Liquid Phase Diffusion (TLPD) Bonding of Silicon Carbide (SiC) Reinforced Aluminium-based Metal Matrix Composite (AlMMC)
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 In this experimental study, a cylinder of aluminium metal matrix composite (AlMMC) consisting of 6061 matrix alloy and 15 wt.% (12.93 vol.%) silicon carbide (SiC) particulate reinforcement was joined by transient liquid phase diffusion bonding (TLPD) process using a mixture of silver and copper powder in a definite ratio. Four SiC reinforced AlMMC cylinders with a diameter of 15mm and a ...
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Authors Sudipto Shekhor MondolRead Journal Click Here
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Page No. 65 to 74
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The Effect of the Eccentric Loading on the Components of the Spine
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 4 The objective of this work is to study the effect of the backpack on the components of the spine system of a child, know the effect of an eccentric load on the intervertebral discs, the creating a 3D model of the spine of child of 80 kg overall weight under the effect of three eccentric load (P2, P3, P4) plus P1 compression load and calculated by the element method ends, For the boundary...
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Authors Samir Zahaf, Hamani Habib, Bensamine Mansouri, Abderrahmane Belarbi,Zitouni AzariRead Journal Click Here
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Page No. 1 to 17
Optimization of Diesel Engine Parameters for Performance, Combustion and Emission Parameters using Taguchi and Grey Relational Analysis
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 3 Design and operating parameters of diesel engine were optimized in the present work with respect to performance, combustion and emission parameters. The goal is to reduce brake specific fuel consumption (BSFC), exhaust gas temperature (EGT), ignition delay (ID), emissions (CO, NOx, HC) and to increase peak pressure (PP), brake thermal efficiency (BTHE), heat release (HR) simultaneously w...
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Authors Shailaja M, A V Sitarama RajuRead Journal Click Here
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Page No. 49 to 61
Modeling and Simulation of Bullet Resistant Composite Body Armor
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 3 Composite Ballistic body armor materials has become a better body armor protection as compared to traditional steel body armor in terms of its reduction in weight and an improvement in ballistic resistance[1,2]. However, the complex response of composite materials coupled with high costs and limited amount of data from ballistic testing has lead to modeling and simulation of ballistic bo...
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Authors Yohannes RegassaRead Journal Click Here
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Page No. 25 to 31
Design and Analysis of Pressure Die Casting Die for Automobile Component
Published In: GJRE Part: A: Mechanical & Mechanics Volume: 16 Issue: 3 This paper describes one of the ways for the design and analysis of the die of the technology of pressure die casting process. This paper is to maintain the closest tolerances, reduced all machining and can make the process the optimum choice for small volume production as well. Such exact and light parts are one of the premises for the automobile industry, parts with a lightweight desig...
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Authors Y. Abdulfatah Abdu, T. M. Shafii, K. K. Dubey, Prof. U. K. GuptaRead Journal Click Here
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Page No. 1 to 8