Consultez les proceedings de la Conference COMSOL 2024
Guided wave technology offers a promising approach for non-destructive testing (NDT), particularly in the detection of corrosion in critical structures such as pipelines. This study focuses on utilizing COMSOL Multiphysics to simulate guided wave propagation for optimizing corrosion ... En savoir plus
Lithium niobate (LiNbO3) possesses unique combination of material properties such as: high electro-optic and elasto-optic coefficients and strong piezoelectricity, enabling integration of optical and acoustic functionalities within a single material, paving the way for advanced ... En savoir plus
Finite Element Method (FEM) simulations are vital in the design of loudspeakers, providing an efficient alternative to traditional trial-and-error methods. This study aims to advance the understanding and optimization of loudspeaker design focusing particularly on the influence of ... En savoir plus
This article reports the design of a high-power ultrasound system, capable of emitting acoustic radiation at 20kHz with SPL peaks up to 160dB at a distance of up to 1m. The main problem of high power airborne ultrasonic systems lies in the acoustic impedance mismatch between the radiator ... En savoir plus
When studying the behavior of a MEMS or electret microphone it is important to consider the design of the inlet or sound channel (tube) that defines how the acoustic signal gets into the microphone, as well as the design of other internal acoustic components such as acoustic chambers and ... En savoir plus
Balanced armature (BA) receivers are miniaturized loudspeakers used in hearing aid instruments, earphones, and hearables. A typical design of a BA receiver includes an armature (metal strip) that is placed between two permanent magnets and a coil that is wound around the armature. The ... En savoir plus
Condenser microphones will have an electrical output for any displacement of the membrane relative to the back plate, which is usually bound to the microphone housing. For the typical use case, a pressure input will create a pressure difference across the membrane, which causes a ... En savoir plus
Traffic noise pollution has represented a significant challenge for modern societies, requiring the development of innovative noise mitigation strategies. In the last decades, intensive research has been developed into the design and evaluation of noise barriers but there still lacks a ... En savoir plus
In structural optimization, the norm has long been to use maximum stress or compliance as objectives to be minimized. However, probabilistic quantities, such as the probability of failure, offer a fresh and powerful alternative. These quantities are inherently dimensionless, confined to ... En savoir plus
One way to extract piezoelectric material data from measurements is to utilize vibrational eigenmodes of block-shaped test specimens (Rupitsch 2015). Within a simulation-aided approach this results in optimizing the values of the material data parameters to fit the experimental result, ... En savoir plus