Browsing by UPNA Author "Plaza Puértolas, Aitor"
Now showing items 1-7 of 7
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Along-the-path exponential integration for Floquet stability analysis of wind turbines
Traditionally, stability assessment of wind turbines has been performed by eigenanalysis of the azimuthally-averaged linearized system after applying the Multi-Blade Coordinate (MBC) transformation. However, due to ... -
Dynamic considerations of heel-strike impact in human gait
Based on the impulsive-dynamics formulation, this article presents the analysis of different strategies to regulate the energy dissipation at the heel-strike event in the context of human locomotion. For this purpose, a ... -
Instantaneous amplitude and phase signal modeling for harmonic removal in wind turbines
We present a novel approach to harmonic disturbance removal in single-channel wind turbine acceleration data by means of time-variant signal modeling. Harmonics are conceived as a set of quasi-stationary sinusoids whose ... -
Mechanical sensitivity analysis of strain gauge configurations in the main shaft of wind turbines
Wind turbines are reaching their remaining useful life, thus it is important to guarantee the well status of its components. A common way to check the status is to measure the loads on the Low Speed Shaft with strain gauges, ... -
Mode-displacement method for structural dynamic analysis of bio-inspired structures: a palm-tree stem subject to wind effects
Biological materials (orthotropic materials), like wood, can offer good mechanical properties with a minimum amount of material, making their internal structure the suitable one to be applied on bio-inspired structures. ... -
Modelado simbólico para la simulación en tiempo real de sistemas multicuerpo
Esta tesis se sitúa dentro del contexto de los métodos simbólicos en la dinámica de sistemas multicuerpo y recoge la experiencia de 25 años en este contexto. La situación anterior a la tesis era la de una librería simbólica ... -
Ultra-low frequency multidirectional harvester for wind turbines
In this paper we propose, and demonstrate through a prototype, a completely novel device able to harvest mechanical energy from the multidirectional vibrations in a wind turbine, and convert it into electrical, to power ...