Consultez les proceedings de la Conference COMSOL 2024
The ideal way to measure the acoustic performance of heavy items such as vehicles or machines is in a semi-anechoic chamber, i.e. in an environment with no reflections except from the solid floor where the noise source is standing. To accurately measure low frequencies down to 20 Hz ... En savoir plus
The COMSOL® app library of the Technical University of Munich is a collection of applications for simulating acoustic phenomena. They are used in the teaching of acoustics to visually represent fundamental vibrational aspects and provide learners with a visual understanding. In the ... En savoir plus
This study involves a comparative analysis focusing on the transmission loss (TL) exhibited by both the Helmholtz resonator (HR) and the quarter-wavelength resonator (QWR). These resonators are designed to attenuate sound energy specifically at their respective resonance frequencies. ... En savoir plus
This poster presents a passive noise control of sound emananted from a vibrating cylinder using acoustic superscatterers. Acoustic superscatterer is a type of metamaterial whose scattering cross-section is larger than its real size. Numerical studies are conducted using pressure ... En savoir plus
Vibration-based Piezoelectric Energy harvesters convert ambient vibration energy into an applicable electrical charge for wireless sensors, IoT applications, and charging the battery, which is most important to range improvement of the Electric Vehicle. This study analyses different ... En savoir plus
Beams-driven structures are structures that use beams to support their weight. The beams are typically arranged in a way that distributes the weight of the structure evenly. Beams-driven structures are often used in buildings, bridges, and other complicated structures. Beams-driven ... En savoir plus
In this paper, we report FEM studies of the effect of unwanted interfering structural vibrations on the performance of an underwater Acoustic Vector Sensor (AVS) performed in the COMSOL Multiphysics simulation tool. An AVS is a compact sensor that measures a four-dimensional vector ... En savoir plus
This paper presents a finite element (FE) model of the scattering studies of cylindrical pressure housings made of different metallic alloys such as aluminium, stainless steel 316L and titanium. Understanding the acoustic scattering behavior of underwater objects helps in improving ... En savoir plus
Loudspeakers, specifically electrodynamic transducers with enclosures, are used almost everywhere in our life. Transportation of acoustic information is vital for humans since the very beginning of the human evolution. Hence, reproduction of acoustics has a long tradition in engineering ... En savoir plus
Contactless manipulation of microscopic objects through acoustic waves has proven an attractive solution for several applications over the past decades. This modality is particularly interesting for the manipulation of bio-particles (BPs) due to its relatively low intensities, capability ... En savoir plus