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Welcome to The IUP Journal of Mechanical Engineering
ISSN: 0974-6536
A ‘peer reviewed’ journal distributed by EBSCO and Proquest Database

Nov'16
  Previous Issues  

Mass, motion, forces, energy, design, and manufacturing—these comprise the world of mechanical engineering today. Continual research and development has led to better machines and processes culminating in key events and technological advancements, that have improved the 'quality of life' of mankind. Mechanical engineering is concerned with all aspects—design, development, construction, production, installation, operation and maintenance—of almost everything that we come across in our daily lives-be it a sophisticated jet engine or a simple toy. It is to acknowledge the growing importance of this field IUP has come up with a quarterly journal—The IUP Journal of Mechanical Engineering.

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  • Mechanics of Solids
  • Materials
  • Fluid Mechanics
  • Combustion and Fuels
  • Thermodynamics/Heat Transfer
  • System Dynamics and Controls
  • Design
  • Design, Manufacturing and Product Development
  • Ocean Science and Engineering
  • Energy Science and Engineering
  • Bioengineering
  • Micro and Nano Engineering
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An Experimental and FE Analysis of Helical Gear for Bending Stress at Critical Section
Thermostructural and Dynamic Analysis of Expansion Joint Due to Dynamic Response of Gas Pressure Excitation and Thermal Expansion
The Effect of Dimple Density on Tribological Performance of Polyamide (PA66) Composites
Machining of Aluminum Hybrid Metal Matrix Composite by Wire Electrical Discharge Machine: A Review
Ranking of Ordering Policies by Simple Additive Weighting (SAW)
Technique for Indian Automotive Industry
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Contents
(Nov 2016)

An Experimental and FE Analysis of Helical Gear for Bending Stress at Critical Section

--Prashant J Patil and M S Patil

The increasing demand for quiet power transmission in machines, vehicles and generators has created a growing demand for a more precise analysis of the characteristics of gear systems. In addition, the success in engine noise reduction promotes the production of quieter gear pairs for further noise reduction. In the process of gear design, the pressure angle of gear plays a vital role. It is because pressure angle simultaneously affects the base circle radius of the involutes profile and the minimum number of teeth to avoid interference varies with pressure angle. Moreover, the Lewis form factor used in Lewis equation to account for bending stress at tooth root depends upon the number of teeth and pressure angle. Higher value of pressure angle has greater length of contact, whereas smaller value of pressure angle gives quietness in operation. Nowadays, a trend is followed in using different pressure angles at driving and costal side of gear tooth. The work involves experimentation using strain gauge and 3D photoelasticity techniques to study the effect of pressure angle on bending stress at critical section of helical gear. The results obtained from the experimental analysis have been compared with theoretical and finite element method results.

Thermostructural and Dynamic Analysis of Expansion Joint Due to Dynamic Response of Gas Pressure Excitation and Thermal Expansion

--Chetan Kaduba Mahajan and Ganesh D Korwar

Expansion joints are used in the various locations of the ducts carrying the gas at high pressure and temperature. These joints absorb vibrations due to flow of gas and also absorb dimensional variations of ducts due to pressure and thermal expansion. Failure of expansion joint has been observed. Sleeve of the expansion joint is failing, and because of this failure, bellows directly exposed to hot gases are also failing. A Finite Element Analysis (FEA) is carried out to investigate the causes of failure.

The Effect of Dimple Density on Tribological Performance of Polyamide (PA66) Composites

--G S Pendbhaje, V S Aher, A K Mishra and V D Wakchaure

Surface texturing has emerged in the last decade as a viable option of surface engineering, resulting in significant improvement in tribological properties like wear resistance, coefficient of friction, load carrying capacity, etc. of mechanical components. In this paper, the effect of surface texturing on tribological properties of Polyamide (PA66) composite materials is studied considering elliptical texture pattern with varying orientations so as to observe the comparative friction and wear behavior of Polyamide (PA66) composites with and without surface texturing on mating surface at dry and wet lubrication using a pin-on-disc tribometer. The results show that the coefficient of friction varies considerably with surface texture patterns; some texture patterns show a higher load carrying capacity and due to that negative coefficient of friction is observed. Scanning Electron Micrographs (SEM) show that wear of some textured surfaces is reduced compared with the non-textured surface at both the lubricating conditions.

Machining of Aluminum Hybrid Metal Matrix Composite by Wire Electrical Discharge Machine: A Review

--G Gokulakannan, R V Praveena Gowda and S Ramesh

Aluminum (Al) Hybrid Metal Matrix Composites (HMMCs) are extensively used in aerospace, automotive and other industries, replacing the usage of single reinforced metal matrix composite material. In the last five years, due to the advancement of technology, HMMCs have witnessed largely enhanced application and usage. HMMCs exhibit robust and well-enhanced properties when compared to the single reinforced composite materials. In this review, different types of reinforcements used by the researchers are discussed. Further, the volume fraction of reinforcement and the types of fabrication method adopted are also examined. Selecting suitable process parameter for the fabrication of composite material is important, which results in equal distribution of reinforcement in the matrix material. For machining, composite material nontraditional machine was adopted by most of the researchers; especially Wire Electrical Discharge Machine (WEDM) and Electrical Discharge Machine (EDM) are widely used due to their dimensional accuracy and less distortion over the surface of the workpiece. The application of Al HMMCs, problems encountered in the machining of HMMCs and the future possible research trends in this area are also discussed.

Ranking of Ordering Policies by Simple Additive Weighting (SAW) Technique for Indian Automotive Industry

--Amit Gupta

In the current scenario of high competition, there is a need for emerging approaches for inventory management. Right selection of ordering policies is one of the important processes for the development of any industry. Poor inventory management leads to retention of inventory and hence causes losses to the industry. In this paper, an analytical model has been developed for ranking of ordering policies using Simple Additive Weighting (SAW) technique. The ranking criteria are considered from the papers selected from the available literature.

 

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Automated Teller Machines (ATMs): The Changing Face of Banking in India

Bank Management
Information and communication technology has changed the way in which banks provide services to its customers. These days the customers are able to perform their routine banking transactions without even entering the bank premises. ATM is one such development in recent years, which provides remote banking services all over the world, including India. This paper analyzes the development of this self-service banking in India based on the secondary data.

The Information and Communication Technology (ICT) is playing a very important role in the progress and advancement in almost all walks of life. The deregulated environment has provided an opportunity to restructure the means and methods of delivery of services in many areas, including the banking sector. The ICT has been a focused issue in the past two decades in Indian banking. In fact, ICTs are enabling the banks to change the way in which they are functioning. Improved customer service has become very important for the very survival and growth of banking sector in the reforms era. The technological advancements, deregulations, and intense competition due to the entry of private sector and foreign banks have altered the face of banking from one of mere intermediation to one of provider of quick, efficient and customer-friendly services. With the introduction and adoption of ICT in the banking sector, the customers are fast moving away from the traditional branch banking system to the convenient and comfort of virtual banking. The most important virtual banking services are phone banking, mobile banking, Internet banking and ATM banking. These electronic channels have enhanced the delivery of banking services accurately and efficiently to the customers. The ATMs are an important part of a bank’s alternative channel to reach the customers, to showcase products and services and to create brand awareness. This is reflected in the increase in the number of ATMs all over the world. ATM is one of the most widely used remote banking services all over the world, including India. This paper analyzes the growth of ATMs of different bank groups in India.
International Scenario

If ATMs are largely available over geographically dispersed areas, the benefit from using an ATM will increase as customers will be able to access their bank accounts from any geographic location. This would imply that the value of an ATM network increases with the number of available ATM locations, and the value of a bank network to a customer will be determined in part by the final network size of the banking system. The statistical information on the growth of branches and ATM network in select countries.

Indian Scenario

The financial services industry in India has witnessed a phenomenal growth, diversification and specialization since the initiation of financial sector reforms in 1991. Greater customer orientation is the only way to retain customer loyalty and withstand competition in the liberalized world. In a market-driven strategy of development, customer preference is of paramount importance in any economy. Gone are the days when customers used to come to the doorsteps of banks. Now the banks are required to chase the customers; only those banks which are customercentric and extremely focused on the needs of their clients can succeed in their business today.

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