Centurion University

India

Centurion University

India
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Centurion University's tie up with ICA gives students guaranteed job opportunity and on-job training after successful completion of their courses.


Rao P.G.,GMRIT | Rao P.S.,Centurion University | Gopala Krishna A.,Jawaharlal Nehru Technological University Kakinada
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering | Year: 2017

Previous researches have been devoted to development of vibratory setup for inducing mechanical vibrations into the weld pool during welding process. The designed vibratory setup produces the required frequency with suitable amplitude and acceleration in terms of voltages. This helps in producing uniform and fine grain structure in the welded joints which results in an improvement in the mechanical properties of the weld pieces at heat affected zone. This paper presents the development of a smart prediction tool by implementing generalized regression neural network to establish a relation between vibration parameters such as input voltage to the vibromotor, time of vibration and impact strength of vibratory weld joints. In order to validate the feasibility of the developed prediction tool, a comparison is made with the experimental results. © IMechE 2015.


Musalaiah G.,AITAM | Suresh B.V.,GMRIT | Srinivasa Rao P.,Centurion University | Govinda Rao P.,GMRIT
International Journal of Mechanical Engineering and Technology | Year: 2017

Manufacturing processes inevitably induce a state of residual stress into materials and products. This can pose potential problems, in terms of dimensional stability, Structural integrity and reduced fatigue life. The conventional way to relieve the residual stresses is post-weld heat treatment, which is an effective process, but it suffers from several disadvantages: the cost of treatment in terms of equipment and energy is high. Hence a new approach is needed to overcome the draw backs encountered by the conventional stress relieving techniques. As an extension to the existing methods for better strength achievability vibratory welding technique is introduced. The present experiment is intended to analyze the effect shear stress on the lap welded mild steel plates of IS 2062 grade-B, which are welded during vibration with variations of current that is at different amplitudes and accelerations. And it is identified that the shear strength is increasing while the welding process is done by giving vibrations to the work piece. © IAEME Publication.


Vamsi Durga Mohan G.,GMRIT | Rao K.S.,GMRIT | Srinivasa Rao P.,Centurion University
International Journal of Mechanical Engineering and Technology | Year: 2017

This paper consolidated the improvements in mechanical properties from the past literature available using Vibratory welding technique. Vibratory welding is a promising method in eliminating the disadvantages experienced by the traditional welding like residual stress due to the electrical energy input which induces vibrations by varying the input parameters voltage, current, amplitude and frequency. It is also a better alternative to the heat treatments available to increase the strength, with no special tools and less cost during time of welding itself. The very advantages of vibratory welding are that it gives effective penetration of the molten metal to each corner of the joint that is chosen. © IAEME Publication.


Suresh B.V.,GMRIT | Musalaiah G.,AITAM | Srinivasa Rao P.,Centurion University | Govinda Rao P.,GMRIT
International Journal of Mechanical Engineering and Technology | Year: 2017

Vibratory welding or Vibratory Stress Relieve welding is a promising technology and a new approach to welding in eliminating the draw backs encountered by the conventional welding like residual stress because of the electrical energy input which induces vibrations by altering the input parameters voltage, current, amplitude, frequency. It is also a better alternative to the heat treatments available to increase the strength, with no special tools and less cost during time of welding itself. The very advantages of vibratory welding are that it gives effective penetration of the molten metal to each corner of the joint that is chosen. The present experiment is intended to analyze the effects of hardness in the direction of longitudinal to the work piece on the lap welded mild steel plates of IS 2062 grade-B. The experimental study on vibratory welding process proposes to let the vibrations are introduced to alter the mechanical properties like hardness of parent metal with in vicinity of weld bead that is heat effected zone of the specimen. © IAEME Publication.


Panda S.,Centurion University | Srilakshmi D.,Centurion University
International Conference on Signal Processing, Communication, Power and Embedded System, SCOPES 2016 - Proceedings | Year: 2017

This paper presents a comparative study of conventional and improved incremental conductance (IC) algorithm. In this study the performance of PV system is investigated by using the existing and proposed IC algorithm. The output voltage and the power is calculated in both the cases, these algorithms are implemented to drive the semiconductor switch of the boost converter further for the boost converter design a Matlab program is developed. To reduce the THD of output ac side 5-Level inverter is used with CO PWM. © 2016 IEEE.


Ramakrishna G.,Sri Vishnu Engineering College for Women | Srinivasa Rao P.,Centurion University | Govind Rao P.,GMRIT
International Journal of Mechanical Engineering and Technology | Year: 2016

Welding provides a permanent joint but it affects the metallurgy of the components. During the welding process, due to the intense heat input, the regions near the weld undergo severe thermal cycles, thereby generating inhomogeneous plastic deformation in the weldment. Due to this, strength of the weld joint is reduced. To overcome this, different methods are used to improve the mechanical properties of welded joints. In this paper various methods are pointed out in the view of above issue. © 2016 IAEME Publication.


Rao K.D.,Centurion University | Kumar S.,Jadavpur University
Advances in Intelligent Systems and Computing | Year: 2014

In this paper design of the Linear Quadratic Regulator (LQR) for Quarter car semi active suspension system has been done. Current automobile suspension systems use passive components only by utilizing spring and damping coefficient with fixed rates. The vehicle suspension systems are typically rated by its ability to provide good road handling and improve passenger comfort. In order to improve comfort and ride quality of a vehicle, four parameters are needed to be acknowledged. Those four parameters are sprung mass acceleration, sprung mass displacement, unsprung displacement and suspension deflection. This paper uses a new approach in designing the suspension system which is semi-active suspension. Here, the hydraulic damper is replaced by a magneto-rheological damper and a controller is developed for controlling the damping force of the suspension system. The semi-active suspension with controller reduces the sprung mass acceleration and displacement hence improving the passengers comfort. © Springer International Publishing Switzerland 2015.


Gaya A.,Centurion University
IET Conference Publications | Year: 2011

A channel model under has been designed for fading environments using which channel capacity of a MIMO system can be enhanced. The channel which proposed here between transmitter and receiver is Rayleigh flat fading and both the transmitter and receiver are unknown about the fading coefficient. As an efficient antenna arrayis being used here at the receiver which will increase the SNR and will give the high value of channel capacity. A linear antenna array gives high value of SNR and beam width which can be considered at the receiver. Under Rayleigh fading channel capacity varies linearly with number of antenna elements.


Behera G.,Centurion University
Proceedings - 2011 2nd National Conference on Emerging Trends and Applications in Computer Science, NCETACS-2011 | Year: 2011

Now-a-days privacy has become a major concern; the goals of security like confidentiality, integrity and availability do not ensure privacy. Data mining is a threat to privacy. Researchers today focus on how to ensure privacy while performing data mining task. As Data mining algorithms are typically complex and furthermore the input usually consists of massive data sets, the generic protocols in such a case are of no practical use and therefore more efficient protocols are required. This paper focus on the problem of decision tree learning with the popular C4.5 algorithm. C4.5, an extension of ID3 is a very popular decision tree building method in data mining. Entropy and Gini index are two different criteria used in ID3. While there is quite little work in privacy preserving ID3 using entropy and not much has been done for Gini index. This paper propose modified protocols based on secure multiparty computation for privacy preserving C4.5 using Gini index over distributed partitioned data, where the protocols do not require any third party server. However, some communication overhead is necessary so that the parties can carry out the secure protocols. The result like ROC(Receiver Operating characteristic) graph and detail accuracy through cost counting index is shown. © 2011 IEEE.

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