Division of Mechanical Sciences: Recent submissions
Now showing items 101-120 of 2361
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Type and dimensional synthesis of spring mechanics for circuit breakers
Circuit breakers are crucial elements in high?voltage electrical substations, used to make and break circuits manually or automatically. They protect high?value equipment in the switchyard, such as transformers, by ... -
Activated carbon-nitrogen adsorption cryocoolers : characterization of sub-systems and experiments on a laboratory model
This thesis deals with the development of a laboratory model of an activated?charcoal杗itrogen cryocooler to cater to heat loads of the order of 1 W in the temperature range 80�0 K. Among other aspects, adsorption and thermal ... -
Modeling of thermo-fluid dynamic processes in a new, Low-Emission two-stroke IC engine
A comprehensive numerical technique has been developed to simulate the various processes in a two?stroke engine. More specifically, detailed multi?dimensional models that can simulate compressible, turbulent, two?phase ... -
On the flow-acoustic modelling of the exhaust system of a reciprocating internal combustion engine
Reciprocating machines, such as internal?combustion engines, compressors, etc., are among the dominant producers of noise. For a suitable design of noise?reducing equipment-primarily mufflers-the noise?generating sources ... -
Laminar free convection heat transfer from vertical cylinders and wires
This thesis presents investigations on laminar free?convection heat transfer to a quiescent fluid from vertical cylinders and wires with the following boundary conditions: Isothermal surface temperature, Non?isothermal ... -
Analysis and simulation of ice storage air-conditioning systems
Ice?storage air?conditioning is a form of distributed load management. The system makes ice during off?peak periods and uses it to cool the building during on?peak periods. In the present work, an ice?storage air?conditioning ... -
Monte Carlo simulation of self assembled monolayers
We model and simulate the Self?Assembled Monolayer (SAM) of thiols (with a general chemical formula CH?�(CH?)?朣朅u) on a gold surface with the (111) index exposed. This system has been studied extensively by both experiments ... -
Neuromorphic solution to the inverse kinematic, problem of serial manipulators
A serial manipulator is a chain of alternating 搄oints� (revolute or prismatic) and 搇inks,� with one end fixed and the free end having an end?effector attached. For a manipulator to perform any task, one of the main problems ... -
Probabilistic site characterization and reliability analysis of shallow foundations and slopes
Uncertainty is pervasive in almost every field of engineering, and geotechnical engineering is no exception. Natural soils are heterogeneous and anisotropic in physical properties due to their composition and complex ... -
Vibration of cables under determministic and randon excitations.
Conclusions i) A new method of linear analysis has been developed to handle the non planar free vibration behaviour of cables in the presence of a spatially non uniform lateral load. ii) If the lateral load, even though ... -
Effect of reinforcement parameters on the mechanical behaviour of geosynthetic reinforced sand
Soil possesses very high strength in compression, but virtually no strength in tension. Hence, when used as a construction material in civil engineering applications, soil usually fails in shear. Soil can be reinforced ... -
Bentonite-Kaolinite-sand mixtures as backfill material for nuclear fuel waste disposal vault.
The aim of the present investigation is to find a suitable backfill material to be used in a nuclear fuel waste–disposal vault. The requirements for such backfill material with regard to various characteristics-such as ... -
Ultimate strength and behaviour of reinforced concrete T-beams under combined bending and torsion, Ph.D. Thesis
Summary and Conclusions The various conclusions arrived at in this study are summarized as follows: 1. Equilibrium Method The equilibrium method used in this investigation for the analysis of T beams under combined bending ... -
Stability of slopes and passive earth structures in partially saturated soils by the method of characteristics.
Stability analysis of slopes and passive earth pressures are problems of considerable economic importance and technical interest in geotechnical engineering. Efforts have continuously been made to improve the methods of ... -
Performance analysis and improvent of submersible pumps
The prediction of performance and efficiency of turbomachines based on test results with geometrically similar physical models using scale effect formulae has been done for the past several decades. Now, with the introduction ... -
In-Situ testing of soils and pavement systems using spectralanalysis of surface waves(SASW)
The determination of shear wave velocity profile with depth for any ground or pavement site is essential for: (i) performing earthquake resistant analysis, (ii) carrying out soil liquefaction studies, and (iii) assessing ... -
Some studies on volume change and strength behaviour of soils as affected by environmental factors
The present investigation is an attempt to understand clay–organic pore fluid interactions, to check in the first place whether highly ligative organic molecules result in clay behaviours similar to those produced by weakly ... -
Axisymmetric problems on capacity and passive earth pressures in soils with bilinear ground surface by the method of characteristics.
Shallow footings are placed on different types of soil under different site conditions. A shallow footing placed in a depression with stratified soil is a good example of a practical problem. For a realistic analysis of ... -
Studies on slurry reactors
Bubble column slurry reactors (BCSRs) are used for three phase contacting in petroleum, petrochemical, and chemical industries and in pollution control. The main objectives of the present work are: to analyse and evaluate ... -
Selective ion exchangers crosslinked poly (4-vinyl pyridine) with transition metal ion
Chelating resins are generally used to remove transition metal ions selectively. They are of two types: functionalised resins and templated resins. The selectivity in the former case is dependent on the pH of the medium, ...