Consultez les proceedings de la Conference COMSOL 2024
This paper reports the design of a piezoelectric energy harvesting micro generator for an energy autonomous tire pressure monitoring wireless sensor node. For our design we use a piezoelectric MEMS generator approach without additional mass. The intrinsic mass of the cantilever is in the ... En savoir plus
In recent years, Atomic Force Microscopy (AFM) has played a key role in the characterisation of surface structures and materials at the microscopic level. One of the most important aspects of AFM image analysis is the reliable provision of pore size and cross-linking rate data. AFM uses ... En savoir plus
Fluid Structure Interaction (FSI) plays an important role in the seismic analysis and the design of Hydraulic structures. In this study, the acoustic finite element model is analyzed with impounded water considering appropriate boundary conditions between the water & the upstream ... En savoir plus
We present a problem-adapted finite element model, which enables the design of a novel type of a highly miniaturized, electrostatic MEMS membrane pump, as well as the investigation and the optimization of its operation. The electro-mechanical actuation scheme constitutes a strongly ... En savoir plus
Bimetallic mechanical parts made of steel and bronze combine in an optimal manner the mechanical properties of the steel and the excellent anti-friction characteristics of the bronze. These properties make applications possible in various high-tech domains such as aviation, energy and ... En savoir plus
The High Flux Isotope Reactor at the Oak Ridge National Lab is in the research stage of converting its fuel from high-enriched uranium to low-enriched uranium. One of the areas being explored is the fluid-structure interaction phenomenon due to the interaction of thin fuel plates (50 ... En savoir plus
Abdominal Aortic Aneurysms (AAAs) are balloonings of the descending aorta. Surgical intervention only occurs when the aneurysm growth exceeds a certain threshold, which is slightly different between men and women. Early-stage patients are often asymptomatic, and there is no prediction ... En savoir plus
Clayey soils and rocks are often used to secure contaminants, dissolved in the interstitial water, or fluids immiscible with water, because of their hydraulic properties (very low permeability and high water retention capabilities, see e.g. McCartney et al., 2016). However, their hydro ... En savoir plus
As the demand for lightweight fibrous insulation materials in aerospace [1] and automotive [2] applications increases due to their benefits in reducing carbon footprints and costs [3], accurate prediction of thermal properties becomes crucial, particularly before production. The thermal ... En savoir plus
Efficient mixing and pumping of liquids at the microscale is a technology that is still to be optimized. The combination of an AC electric field with a small temperature gradient leads to a strong electrothermal flow that can be used for multiple purposes. Combining simulations and ... En savoir plus