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Showing 1 to 20 of 186 for “"TJ Mechanical engineering and machinery"”.
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Development and Deployment of Involute Splines Cold Forming Process for Gear Manufacturing
… from forgings to the final part. A new standard has been set for manufacturing of spline rolled gears. The final vehicle applications comprised of various automotive model variants. It is a report that provides a background into the theoretical and practical principles of cold metal …
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Experimental Testing and Numerical Investigation of Materials with Embedded Systems during Indentation and Complex Loading Conditions
… FE (Finite Element) modelling has been developed and used to study the deformation of soft materials with different embedded systems under indentation and more complex conditions. The deformation of a soft material with an embedded stiffer layer under cylindrical flat indenter was investigated …
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Development of a Closed Loop Control System for Vibratory Milling
Manufacturing makes ever-increasing demands for higher machining speeds. This is particularly true in car and aircraft production, but also for cutting tools. Vibration is used in various technological processes to improve the performance of the machines by intelligently exploiting the synergy of …
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Pressure drop and flow characteristics for the pneumatic transport of fine particles through curved and straight circular pipes
… the analysis of which provides a better understanding of the pressure drop and flow characteristics of pneumatically transported solid particles. The versatility of the test rig is demonstrated by the diversity of the investigations performed during this study. Quantitative results were acquired …
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An investigation into vibration assisted machining : application to surface grinding processes
… this, further necessary parameters were examined and analysed. A first step was to design the vibrating rig and after a number of different designs the most suitable model was selected for the conduction of the preliminary studies. However, a novel-improved system was designed and manufactured in …
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Parametric Studies Based Mechanical and Thermal Modelling of Spot Welded Joints
… for the investigation of spot weld properties and performance. An Inverse temperature measurement approach has been established to predict the thermal history of a spot welded joints using remote thermocouples. This method incorporated the experimental data into an Artificial Neural Network …
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Numerical and experimental investigation of mechanical strength of spot welded joints
… ies of materials has been systematically studied and used to characterise detailed properties of spot welded joints in steel. An inverse program based on a dual indenter approach and continuous indentation curves has been established and validated, which provided the framework for an improved …
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A novel concept of series connected multi-phase, multi-motor drive systems
… such as paper mills, locomotive traction and machine tools, which require high performance control of more than one electric motor. These multi-motor drives are generally available in two configurations. The first one consists of a number of three-phase voltage source inverters (VSI) …
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High-rate centreless grinding of ferrous components.
… satisfactorily at high grinding wheel speeds and in the high rate centreless grinding regime. The principal modifications included the provision of a 75 k. W. d. c., variable speed, main drive motor which enables grinding wheel speeds up to 120 m/s to be employed and a coolant supply manifold …
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The synthesis of hybrid mechanisms using genetic algorithms.
… using Genetic Algorithms. GAs are a search and optimisation method which model the mechanics of population genetics to give a truly global search method. In parallel to the development of a suitable GA, the work also develops novel objective function criteria which go some way to providing …
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Absolute distance contouring and a phase unwrapping algorithm for phase maps with discontinuities.
… a new technique, absolute distance contouring, and a phase unwrapping algorithm for phase maps with discontinuities. Absolute distance contouring, which is based on the shadow moire method, using the rotation of a grating, is a technique which can be used for the measurement of absolute distance …
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An investigation of various computational techniques in optical fringe analysis.
… pattern is projected onto an object's surface and, when viewed off-axis, it deforms to follow the shape of the object. The deformed fringe pattern is analysed to obtain its phase, information that is directly related to the height distribution of the surface by a proportionality constant. This …
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