Division of Mechanical Sciences: Recent submissions
Now showing items 1761-1780 of 1945
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Asymptotic Analysis Of The Dispersion Characteristics Of Structural Acoustic Waveguides
(2010-04-12)In this work, we study the coupled dispersion characteristics of three distinct structural-acoustic waveguides, namely: -(1) a two-dimensional waveguide, (2) a fluid-filled circular cylindrical shell and (3)a fluid-filledelliptic ... -
Dynamics Of Early Stages Of Transition In A Laminar Separation Bubble
(2010-04-12)This is an experimental and theoretical study of a laminar separation bubble and the associated transition dynamics in its early stages. The separation of a laminar boundary layer from a solid surface is prevalent in very ... -
Comprehensine Studies Of Surface Aeration Systems
(2010-04-12)Dissolved oxygen refers to the mass of oxygen that is contained in water. The concentration of dissolved oxygen is an important indicator of the environments water quality. The presence of oxygen in water is desirable ... -
Studies On Compacted Stabilised Fly Ash Mixtures And Fly Ash Bricks For Masonry
(2010-04-12)Fly ash is a waste product from thermal power plants where pulverised coal is used for the generation of electricity. Fly ash is being utilised in the blended cements, additive for concrete and manufacturing of concrete ... -
Dynamic State Estimation Techniques For Identification Of Parameters Of Finite Element Structural Models
(2010-04-12)The thesis outlines the development and application of a few novel dynamic state estimation based methods for estimation of parameters of vibrating engineering structures. The study investigates strategies for data fusion ... -
Autonomous Landing Of Unmanned Aerial Vehicles
(2010-03-26)In this thesis the problem of autonomous landing of an unmanned aerial vehicle named AE-2 is addressed. The guidance and control technique is developed and demonstrated through numerical simulation results. The complete ... -
Multi-Scale Approaches For Understanding Deformation And Fracture Mechanisms In Amorphous Alloys
(2010-03-09)Amorphous alloys possess attractive combinations of mechanical properties (high elastic limit, ~2%, high fracture toughness, 20-50 MPa.m1/2, etc.) and exhibit mechanical behavior that is different, in many ways, from that ... -
Decentralized Sustainable Energy Planning For Tumkur District, India
(2010-02-18)The energy-planning involves finding a set of sources and conversion devices so as to meet the energy requirements/demands of all the activities in an optimal manner. This could occur at centralized or decentralized level. ... -
Novel Strategies For Real-Time Substructuring, Identification And Control Of Nonlinear Structural Dynamical Systems
(2010-02-17)The advances in computational and experimental modeling in the area of structural mechanics have stimulated research in a class of hybrid problems that require both of these modeling capabilities to be combined to achieve ... -
On Modeling Of Constrained Piezoelectric Thin Films For Structural Health Monitoring
(2010-01-01)The behaviour of a free-standing thin film differs from that of a film surface-bonded or embedded due to the boundary constraints. A general dearth of analytical models, in regard to prediction of the operational competence ... -
Effect Of Mould Filling On Evolution Of Mushy Zone And Macrosegregation During Solidification
(2010-01-01)The primary focus of the present work is to model the entire casting process from filling stage to complete solidification. The model takes into consideration any phase change taking place during the filling process. An ... -
Cooling Of Electronics With Phase Change Materials Under Constant Power And Cyclic Heat Loads
(2009-12-14)The trend in the electronic and electrical equipment industry towards denser and more powerful product requires a higher level of performance from cooling devices. In this context, passive cooling techniques such as latent ... -
Tensile And Low Cycle Fatigue Behavior Of A Ni-Base Superalloy
(2009-12-14)Background and Objective: Nickel-base superalloys, strengthened by a high volume fraction of Ni3Al precipitates, have been the undisputed choice for turbine discs in gas turbines as they exhibit the best available combination ... -
Geotechnical Site Characterization And Liquefaction Evaluation Using Intelligent Models
(2009-12-09)Site characterization is an important task in Geotechnical Engineering. In situ tests based on standard penetration test (SPT), cone penetration test (CPT) and shear wave velocity survey are popular among geotechnical ... -
Spontaneous Crack Propagation In Functionally Graded Materials
(2009-10-28)Functionally graded materials (FGMs) are composites that have continuously varying material properties, which eliminate undesirable stress concentrations that might otherwise occur in layered composites. The concept of ... -
Novel Sub-Optimal And Particle Filtering Strategies For Identification Of Nonlinear Structural Dynamical Systems
(2009-09-15)Development of dynamic state estimation techniques and their applications in problems of identification in structural engineering have been taken up. The thrust of the study has been the identification of structural systems ... -
Mode-3 Asymptotic Analysis Around A Crack Embedded In A Ductile Functionally Graded Material
(2009-09-15)Functionally graded materials (FGMs) are composites with continuous material property variations. The distinct interfaces between the reinforcement and the matrix in classical composites are potential damage initiation ... -
Analytical, Numerical, And Experimental Studies Of Fluid Damping In MEMS Devices
(2009-09-11)Fluid damping arising from squeeze film flow of air or some inert gas trapped between an oscillating micro mechanical structure, such as a beam or a plate, and a fixed substrate often dominates the other energy dissipation ... -
Methods For Forward And Inverse Problems In Nonlinear And Stochastic Structural Dynamics
(2009-09-03)A main thrust of this thesis is to develop and explore linearization-based numeric-analytic integration techniques in the context of stochastically driven nonlinear oscillators of relevance in structural dynamics. ... -
Design And Manufacturing Of Impact Resisting Structures (Aluminium Foam)
(2009-09-02)Metal foams have found increasing applications in a wide range of structural and functional products, due to their exceptional mechanical, thermal, acoustic and electrical properties and offer great potential for lightweight ...