Articles techniques et présentations

At Leoni, we are not only working towards even more reliable, performant cables by simulating their electric, magnetic, mechanical as well as thermal properties but also bring our customer applications to our design board. Based, amongst others on multi-physical simulations, we prepare ... En savoir plus

The study of low energy electrons (0-300 eV) and especially secondary electrons (typically < 50 eV) are of technical importance in many areas such as Scanning Electron Microscopes [1], spacecraft charging [2], the electron cloud effect in particle accelerators [3] and in radiological ... En savoir plus

Resistance-sintering can be used in a powder metallurgy process as the heating step to consolidate a metallic compact previously obtained by pressing a powder-alloy. This fast-sintering process consolidates electrically conductive powders by simultaneous application of pressure and ... En savoir plus

Circular particle accelerators are powerful tools used in the field of high-energy physics to investigate the nature of the matter. They use strong magnetic fields to bend and focus the particle beams and generate collisions, which are thoroughly analyzed. New physical phenomena may be ... En savoir plus

This study models the energy harvesting reached from an air flow transportation through the flapping of a cantilever polymer flag. The mechanical resonance of the flag is created by a Venturi channel. The flag is charged by triboelectrification and its flapping between two electrodes ... En savoir plus

This paper presents a solution to simulate the dielectric relaxation in insulating materials using COMSOL Multiphysics in time domain. Indeed, the polarization P in a dielectric material may be divided into two parts according to the response time, the electronic polarization and the ... En savoir plus

ALD Vacuum Technologies GmbH has been using COMSOL Multiphysics® since 2020. Our machines use an electron beam system to provide the required process heat. Multiple physical aspects of this electron beam system are simulated in COMSOL Multiphysics®. Strong alternating currents run ... En savoir plus

High-Temperature Superconductors (HTS) can be superconducting in liquid nitrogen (77 K), holding immense promises for our future. They could enable disruptive technologies such as nuclear fusion and power applications. In a power system, for instance, high short-circuit currents can ... En savoir plus

The era of electrical transportation is here and this includes the aviation sector. However, the electrification of airplanes is setting new challenges due to the system operating conditions and ambient conditions during flight which are highly variable. DC electrical systems are ... En savoir plus

In modern days one of the biggest challenges is to have a special connector for very high current power supply which shouldn’t exceed the rating temperature of 90°C at full load. This main challenge it to design special connectors of aluminum (Al). In this study, a new approach is ... En savoir plus