Browsing Mechanical, Manufacturing & Biomedical Eng by Date of Publication
Now showing items 21-40 of 908
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Mechanics applied to skeletal ontogeny and phylogeny
(Springer, 2002)The musculo-skeletal system serves the mechanical function of creating motion and transmitting loads. It is made up mainly of four components: bone, cartilage, muscle and fibrous connective tissue. These have evolved over ... -
Evaluation of high frequency vibrations using electronic speckle pattern interferometry
(2002)The available techniques for the study of high frequency vibration using electronic speckle pattern interferometry (ESPI) are briefly surveyed. We concentrate on two methods in particular. The first is a straightforward ... -
Hypothesis testing of glenoid component innovation in total shoulder arthroplasty
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)A glenoid component with reliable long-term performance does not exist for total shoulder arthroplasty. Poor glenoid component durability may be explained by the huge variability that exists at the shoulder joint ... -
The fatigue behaviour of three-dimensional stress concentrations
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)The fatigue behaviour of complex three-dimensional notched components is a subject of great practical interest to industrial engineers. Unfortunately, the analysis of this type of feature presents problems for most assessment ... -
Natural convection around a horizontal heated cylinder: The effects of vertical confinement
(2003)Natural convection heat transfer from a single horizontal cylinder and a pair of vertically aligned horizontal cylinders is investigated. Surface heat transfer distributions around the circumference of the cylinders are ... -
Biomechanics of ossiculoplasty
(Rila, 2003)Many different designs of prostheses are available for middle ear surgery. Clinical comparisons of such prostheses are often difficult because of the large number of variables involved in the clinical outcome; including ... -
Fast numerical simulation of vortex shedding in tube arrays using a discrete vortex method
(2003)Vortex shedding may occur in tube arrays, resulting in strong excitation forces at discrete frequencies. In the past the Strouhal numbers governing vortex shedding in these systems were determined primarily by experiment. ... -
The effect of prosthesis design on vibration of the reconstructed ossicular chain: a comparative finite element analysis of four prostheses
(Wolters Kluwer, 2003)Hypothesis: We hypothesize that the differences in the bioacoustic performance of ossicular replacement prosthesis designs, and insertion positions, can be quantified using finite element analysis. Background: Many ... -
A stochastic model of damage accumulation in acrylic bone cement : application to failure modelling of cemented hip replacement
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)Acrylic bone cement, used to fixate several forms of orthopaedic joint replacement prosthesis, has a variable fatigue resistance arising mainly from porosity. It is argued that deterministic modelling assumptions of ... -
Metal spinning, an incremental forming process
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)Recent changes in product development processes have increased the demand for sheet metal parts manufactured in low volumes with the minimum investment in tooling. Spinning and a related process called 'incremental stretch ... -
Numerical vibro/acoustic analysis at higher frequencies
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)Accurate modelling of steady-state acoustic and elastic wave phenom ena at higher frequencies, represents a major challenge for current numerical tools. Due to the large amount of computational effort and memory resources ... -
Wear of grinding wheels - software for their selection
(2004)An existing model of the grinding process has been upgraded to predict grinding wheel wear as G ratios. It has been successfully benchmarked against experimental results for several combinations of coolant wheel and ... -
The cellular transducer in damage-stimulated bone remodelling
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)People with osteoporosis, osteopenia or weight baring joint replacement, due to an altered loading configuration, are more susceptible to microdamage accumulation than normal human beings as are athletes who undertake ... -
Adaptation of growing bone to altered mechanical load : morphological change, structural strength and gene expression
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)Osteoporosis, a condition characterised by a loss of bone mass, is of increasing clinical interest in an aging population. Bone formation and growth are controlled by genetic, hormonal and biomechanical factors. This ... -
Control of Grinding Temperature by High Speed Air Jets
(Bled, 2004)Grinding, like other abrasive processes, may generate high local temperatures along the arc of cut. These can cause various forms of surface damage in the most sensitive finishing phase of the manufacturing cycle. Traditional ... -
Effect of a degraded core on the mechanical behaviour of tissue-engineered cartilage constructs: a poro-elastic finite element analysis
(Springer, 2004)The structure and functionality of tissue-engineered cartilage is determined by the tissue culture conditions and mechanical conditioning during growth. The quality of tissue-engineered cartilage can be evaluated using ... -
Study of pulsating flow in close-coupled catalyst manifolds using phase-locked hot-wire anemometry
(2004)Phase-locked sampling has been applied to hot-wire anemometry in order to investigate the pulsating flow inside two types of automotive exhaust manifolds fitted with a close-coupled catalyst. An isothermal dynamic flow ... -
Fracture and fatigue in High Impact Polystyrene : the influence of secondary phase morphology (Rubber Particle Size and Effective Rubber Phase Volume) on fracture and fatigue behaviour in HIPS
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)The subject of the following thesis is the influence of the secondary phase morphology on fracture and fatigue behaviour in High Impact Polystyrene (HIPS). The motivation of the work was the premature failure of parts ... -
An investigation into the influence of cardiovascular stent design on the development of restenosis using the finite element method
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)Finite element models, which can determine the degree of vascular injury caused to a vessel by a stent and hence ascertain the propensity of that stent design to cause in¬stent restenosis, would be a valuable tool for both ...
