Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 48 for “"External loads"”.
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Biomechanical adaptations of human gait due to external loads
… model-based gait analysis technique to classify external loads is presented. Specifically, the effects of external loads on gait are quantified and these effects are then used to classify whether an individual gait pattern is the result of carrying an external load or not. First of all, the …
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A new way of using accelerometers in Australian rules football: assessing external loads
… system (Player load) for measuring the external load of Australian football. Study one established the reliability of a triaxial accelerometer (MinimaxX 2.5) in a laboratory and sports-specific field setting... Study two assessed concurrent validity by measuring relationships between …
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Elastoplastic nonlinear analysis of nozzle-cylinder intersections subjected to internal and external loads
A three-dimensional finite element analysis utilizing quadratic isoparametric elements is applied to the cylindrical connection. The finite element mesh is highly refined in the three principal directions in the critical regions of sharp discontinuity of geometry and material. Convergence of the …
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U-SAFT⁹⁰ simulates the internal and external loads of university-level soccer match play
… Deducing movement patterns and internal and external loading through in-depth study, it may then be possible to simulate competitive match-play specific to squad or individual needs. Modern technology allows match performance to be broken down into specific periods that subsequently enables …
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Nonlinear finite element analysis of tubular joints
… physical interpretation of the effects of external loads on the ultimate static strength of tubular joints. The results include the stress redistribution within the joint at the ultimate state, the stiffness of the T-type joints at different load levels, the real failure modes of tubular …
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Feasibility of passive electromagnetic dampers as energy harvesters in large structures
… Structural damping dissipates the energy of external loads internally within the structure. A simple idea is to connect the two design strategies to control the motion of a structure while harvesting this dissipated energy by transducing it to electrical energy via passive electromagnetic …
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Development and evaluation of postural control models for lifting motions and balance control
… such as aging, localized muscle fatigue, and external loads, have been found to adversely affect balance control. At the same time, behaviors during upright stance are commonly characterized by COP-based measures. Thus, changes in COP based measures with aging, LMF, and external loads were …
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Design and Analysis of a Monocoque Chassis for an Electric Formula SAE Vehicle
… vehicle performance by supporting the applied external loads with a low-mass, high-stiffness structure. Thus far, MIT’s Formula SAE team has developed and utilized welded steel tube chassis designs for their racecars due to their relative simplicity and economy. By taking advantage of the …
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Measurement of residual stresses and solving the inverse problem to infer dislocation distributions
Residual stresses are present in the absence of external loads. All manufactured parts exhibit some degree of residual stress, which can drastically impact fatigue life. The simulation of these stresses has become exceedingly difficult as manufacturing processes have become more complex, and …
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Stress Transmission in a Granular System
A sample of soil under external loads shows nonlinear behaviour. These external loads are propagated through grain-to-grain contacts. Consequently, the grains are being subjected to both tensile and compressive stresses according to their shape, position, and number of contacts. Thus, the nonlinear …
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Computational Analysis of Silicon Nanoelectromechanical Systems
… response of silicon nanostructures for various external loads. Furthermore, a more efficient multiscale model is presented for mechanical analysis of nanostructures at finite temperature, by combining the QHMK and LQHM models. Finally, we investigate thermodynamic and mechanical properties of …
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Monitorización de la carga de entrenamiento en jugadores de baloncesto profesional con herramientas low-cost
… aims to offer a proposal for monitoring training loads in professional basketball players through the use of low-cost tools that enable optimization of performance and reduction of injury risk in contexts with limited technological resources. The research is structured as a compendium of three …
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The demands of vertical ladder ergometer climbing relating to the wind energy industry.
… it aimed to understand the effect of external loads on vertical ladder ergometer climbing, the effect of a climb assist device and the effect of space restriction on ladder climbing. A further aim was to understand the difference between climbing a pitched and vertical ladder …
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The reflection method in the bending of beams and plates
… the prescribed boundary conditions. The known loads are then applied to the infinite plate and their effects are calculated at those points which correspond to the boundary of the original plate. A system of suitably chosen loads and moments is then applied on the infinite plate at points …
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A mixed computational algorithm based on the updated Lagrangian description for plane elastic contact problems
… large rotations and small strains) under external loads using the updated Lagrangian formulation. The mixed finite element formulation allows the nodal displacements and stresses to be approximated independently. Inclusion of stresses as the nodal variables allows the satisfaction of …
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Semi-active control of elastic and inelastic building structures with piezoelectric friction dampers
… proposed control algorithm is quite adaptive to external loads and effective in suppressing structural responses due to multi-level earthquake excitations. The proposed sub-optimal damper placement procedure is efficient and practical in structural control design. Numerical simulations of the …
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Neurophysiological correlates of preparation for action measured by electroencephalography
… responses to periodically or randomly applied external loads, respectively. Higher (pre)motor preparatory activity was recorded in the former case, which resulted in lower post-load motor cortex activation and consequently to lower long-latency reflex amplitude. Event preparation was the theme …
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Relationships Between Training Load Metrics and Injury in Collegiate Women's Soccer
… The purpose of this study was to investigate the external loads for training sessions and competition in starters versus non-starters; to determine if there were control chart violations associated with sustained injuries; and to determine whether in-season injuries were associate with one or more …
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The application of maximal mean and critical speed and metabolic powers for the quantification of external load in soccer
… physical demands. Since physical demand (i.e. external load) varies between matches, the match-to-match variability of external loads in match play were quantified in Study 1 to determine the number of matches needed to quantify performance changes. Twenty (n=20) sub-elite soccer players from a …
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Research on hybrid manufacturing using industrial robot
… the acceleration impact of robot under heavy external loads, few methods and facilities for increasing the efficiency of hybrid manufacturing process are still challenging. This dissertation aims to improve the applications of using industrial robot in hybrid manufacturing by addressing …
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