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Sivakasi, India

Mepco Schlenk Engineering College is an autonomous engineering school located in Sivakasi, Tamil Nadu, India. It was founded on 17 October 1984. It is an ISO9001:2008 Certified Institution. It is sponsored by the Mepco Schlenk Charities, a social welfare organization of the Metal Powder Company Limited, Thirumangalam and its German collaborator, Schlenk. The college was affiliated with Madurai Kamaraj University, Madurai till 2002 and later with Anna University, Chennai, but since 2012 it has been affiliated with Anna University of Technology, Chennai. Wikipedia.

Selvakumar N.,Mepco Schlenk Engineering College, Sivakasi | Vettivel S.C.,PET Engineering College
Materials and Design | Year: 2013

High-energy mechanical milling was used to prepare Cu and W nanopowders. Cylindrical preforms with initial theoretical density of 86% were prepared using a die and punch assembly. The preforms were sintered in a muffle furnace and subsequently furnace cooled and then the hot specimens were extruded to attain 93% theoretical density. Differential Scanning Calorimetry and Thermal Gravimetric Analyzer, four point probe tester, Scanning Electron Microscope and pin on-disc system were used to evaluate the thermal, electrical conductivity, characterization and tribological property of Cu-W composite respectively and using curve fitting method the respective polynomial and power law model were developed. The results indicated that the wear rate decreased with increasing applied load and sliding distance. The composites were tested at high sliding speed which exhibited high value of coefficient of friction. © 2012 Elsevier Ltd. Source

Prabaharan T.,Mepco Schlenk Engineering College, Sivakasi | Yang X.S.,Middlesex University
IEEE Transactions on Evolutionary Computation | Year: 2014

Hybrid flowshop scheduling problems include the generalization of flowshops with parallel machines in some stages. Hybrid flowshop scheduling problems are known to be NP-hard. Hence, researchers have proposed many heuristics and metaheuristic algorithms to tackle such challenging tasks. In this letter, a recently developed discrete firefly algorithm is extended to solve hybrid flowshop scheduling problems with two objectives. Makespan and mean flow time are the objective functions considered. Computational experiments are carried out to evaluate the performance of the proposed algorithm. The results show that the proposed algorithm outperforms many other metaheuristics in the literature. © 1997-2012 IEEE. Source

Premkumar K.,Pandian Saraswathi Yadav Engineering College | Manikandan B.V.,Mepco Schlenk Engineering College, Sivakasi
Neurocomputing | Year: 2014

In this paper, a novel controller for brushless DC (BLDC) motor has been presented. The proposed controller is based on Adaptive Neuro-Fuzzy Inference System (ANFIS) and the rigorous analysis through simulation is performed using simulink tool box in MATLAB environment. The performance of the motor with proposed ANFIS controller is analyzed and compared with classical Proportional Integral (PI) controller, Fuzzy Tuned PID controller and Fuzzy Variable Structure controller. The dynamic characteristics of the brushless DC motor is observed and analyzed using the developed MATLAB/simulink model. Control system response parameters such as overshoot, undershoot, rise time, recovery time and steady state error are measured and compared for the above controllers. In order to validate the performance of the proposed controller under realistic working environment, simulation result has been obtained and analyzed for varying load and varying set speed conditions. © 2014 Elsevier B.V. Source

Kailasanathan C.,Sethu Institute of Technology | Selvakumar N.,Mepco Schlenk Engineering College, Sivakasi
Ceramics International | Year: 2012

Recently, nano bio-composites have emerged as an efficient strategy to upgrade the structural and functional properties of synthetic bone grafts. Bioinert ceramics have attracted wide attention because of their biocompatibility. Novel composites of nano-hydroxyapatite/GEL with incorporation of bioinert ceramics like Al 2O 3, TiO 2 and ZrO 2 for different composites as a reinforcing phase to increase its mechanical properties was prepared. The nHAp with the size of 10-50 nm in diameter and 50-100 nm in length was uniformly distributed into GEL matrix to form the composite. It was found that the composite with a high ceramic content has good homogeneity and mechanical strength, which are close to the cancellous bone. An interconnected porous material with porosity of at least 74% was achieved by phase inversion method. The formation reaction of the nHAp/GEL/bioinert ceramic nanocomposite was then investigated via FT-IR, XRD, TG/DTA and SEM. The organic-inorganic interaction between HAp nano crystallites and GEL molecules were confirmed from FT-IR and TG/DTA. The compressive strength of bioinert ceramic reinforced nanocomposites scaffolds could high up to 13.15 MPa while those of nHAp/GEL were 4.87 MPa. The nano indentation technique was used to find nano hardness and fracture toughness was evaluated by Vickers indentation. © 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved. Source

Maheswaran R.,Mepco Schlenk Engineering College, Sivakasi
Materials and Design | Year: 2015

This study investigates the mechanical resistance behaviour of AA6063 particulate composites with the inclusion of micron-sized silicon carbide (SiC) particles with different weight percentages in an AA6063 aluminium matrix. AA6063/SiC particulate composites containing 0, 5, 10, and 15 weight percent of SiC particles were produced by stir casting. Standard mechanical tests were conducted on the composite plates, and the mechanical resistance to indentation, tensile force and sliding force are evaluated. It has been observed that upon addition of SiC particles, the resistance against indentation is increased and the resistance against tensile force is initially increased and then decreased. Furthermore, using scanning electron microscopy (SEM), the fracture appearance of the broken specimen subjected to tensile force and morphological changes in the surface subjected to sliding force are analysed. The SEM images reveal that the addition of SiC particles in the AA6063 aluminium matrix initiates more cleavage facets. This leads to brittle fracture in the specimen subjected to tensile forces and less transition from material displacement to material removal in the specimen subjected to sliding forces. © 2014 Elsevier Ltd. Source

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