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Hyderabad andhra Pradesh, India

Rao L.B.,Gokaraju Rangaraju Institute of Engineering and Technology | Rao C.K.,Tirumala Engineering College
Mechanics Based Design of Structures and Machines | Year: 2010

This paper is concerned with the elastic buckling of circular plates with internal elastic ring support and elastically restrained edge against rotation and translation. The classical plate theory is used to derive the governing differential equation for circular plate with internal elastic ring support and elastically restrained edges. This work presents the existence of buckling mode switching with respect to the radius of internal elastic ring support. The buckling mode may not be axisymmetric as previously assumed. In general, the plate may buckle in an axisymmetric mode but when the radius of the ring support becomes small, the plate may buckle in an asymmetric mode. The optimum radius of the internal elastic ring support for maximum buckling load is also determined. The percentage of increase in buckling load capacity by introducing concentric elastic ring support is determined for the first time. Extensive data are tabulated so that pertinent conclusions can be arrived at on the influence of rotational and translational restraints, Poisson's ratio, and other boundary conditions on the buckling of uniform isotropic circular plates. The numerical results obtained are in good agreement with the previously published data. Copyright © Taylor & Francis Group, LLC. Source


Kondaiah V.V.,Tirumala Engineering College | Rao J.S.,RGUKT | Subba Rao V.V.,JNTUK
Lecture Notes in Electrical Engineering | Year: 2016

The electro-magnetic actuator presents a solution for most of the technical problems of the traditional mechanical bearings since it ensures the total levitation of a body in space eliminating any mechanical contact between the stator and the levitated body. In practice there is lot of difference between theoretical force and actual force developed between the stator and rotor of an actuator and it varies with air gap and current. This difference is mainly due to different losses in the system. In the present work a correction factor is introduced to account for different losses. A radial basis function neural network (RBFNN) has been implemented to estimate the correction factor and validated with experimental values. The RBF network has been used to estimate the actuator parameters namely force, position stiffness and current stiffness. The RBF predicted values have been validated with the experimental values. © Springer India 2016. Source


Venkatarao J.,Koneru Lakshmaiah College of Engineering | Ramyasri C.H.,Koneru Lakshmaiah College of Engineering | Krishnareddy V.,Koneru Lakshmaiah College of Engineering | Srikanth M.,Tirumala Engineering College
International Journal of Applied Engineering Research | Year: 2014

Now a day's data mining is the most efficient process technique taking relevant data aspects from different sites and other data ware housing processes. In that top-k process generation is the main focus term in present days for retrieving top related products efficiently. Due to this apart unity of the top-k results traditionally more number of techniques were developed for efficient processing. An compelling problem, finding top-k profitable products, which have not been studied before. Given a set of products in the existing market, we want to find a set of k "top" possible products such that these new products are not dominated by the products in the existing market. Dynamic programming approach is one of the technique for extracting top-k results from different aspect terms. This technique have been faced a problem on string comparison in related data sources. In this paper we propose to develop Cronbach's alpha technique, Cronbach's alpha is a test reliability technique that requires only a single test administration to provide a unique estimate of the reliability for a given test. Cronbach's alpha is the average value of the reliability coefficients one would acquire for all possible combinations of items when split into two half-tests. Our experimental results show efficient top-k preferable products present in preferred datasets. © Research India Publications. Source


Naik R.L.,Tirumala Engineering College
Quantum Information Processing | Year: 2015

The primary goals of security such as authentication, confidentiality, integrity and non-repudiation in communication networks can be achieved with secure key distribution. Quantum mechanisms are highly secure means of distributing secret keys as they are unconditionally secure. Quantum key distribution protocols can effectively prevent various attacks in the quantum channel, while classical cryptography is efficient in authentication and verification of secret keys. By combining both quantum cryptography and classical cryptography, security of communications over networks can be leveraged. Hwang, Lee and Li exploited the merits of both cryptographic paradigms for provably secure communications to prevent replay, man-in-the-middle, and passive attacks. In this paper, we propose a new scheme with the combination of quantum cryptography and classical cryptography for 802.11i wireless LANs. Since quantum cryptography is premature in wireless networks, our work is a significant step forward toward securing communications in wireless networks. Our scheme is known as hybrid quantum key distribution protocol. Our analytical results revealed that the proposed scheme is provably secure for wireless networks. © 2015, Springer Science+Business Media New York. Source


Rao L.B.,Gokaraju Rangaraju Institute of Engineering and Technology | Rao C.K.,Tirumala Engineering College
Mechanics Based Design of Structures and Machines | Year: 2011

This study deals with the exact buckling solutions of annular plates with an elastically restrained guided edge against translation. The classical plate theory is used to derive the governing differential equation for annular plate with elastically restrained guided edge against translation. The buckling mode may not be axisymmetric as previously assumed. In certain cases, an asymmetric mode would yield a lower buckling load. This is due to switching of mode. This work presents the critical buckling load parameters for axisymmetric and asymmetric buckling modes. Extensive data is tabulated so that pertinent conclusions can be arrived at on the influence of translational restraints, Poisson's ratio and other boundary conditions on the buckling of uniform isotropic annular plates. The numerical results obtained, are in good agreement with the previously published data. In this paper the characteristic equations are exact, therefore the results can be calculated to any accuracy. Comparison of studies demonstrates the accuracy and stability of this work. Copyright © Taylor & Francis Group, LLC. Source

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