All items tagged with COMSOL (76)

audioXpress June 2024 Models Automotive Audio Development

May 13, 2024 by audioXpress Staff

audioXpress June 2024 Models Automotive Audio Development

audioXpress June 2024 puts automotive audio development into perspective. Starting with how AI and SDV are impacting the industry, an analysis of Integrated Audio Development Frameworks, how sound defines the driving experience of Electric Vehicles, and lessons learned from aftermarket car audio. Learn how to measure MEMS microspeakers, enjoy two great multiphysics simulation articles by Jinlan Huang and René Christensen, and much more.

Simulation Techniques: Acoustical Shape Optimization for Vibroacoustics Applications

April 24, 2024 by René Christensen

Simulation Techniques: Acoustical Shape Optimization for Vibroacoustics Applications

Having detailed how formal optimization can be used for product design of audio products such as speakerphones and waveguides, in this article René Christensen explores free-form and alternative optimization techniques where the topology of the geometry is given from the outset. Using practical examples, this article addresses shape optimization techniques, identifying useful types of boundaries and challenges to look out for audio product designs. This article was originally published in audioXpress, February 2024.

Simulation Techniques: Room Gain

April 17, 2024 by René Christensen

Simulation Techniques: Room Gain

Room Gain is a term not used in acoustics textbooks as such. Room acoustics is naturally often discussed in the hifi community, since the room you put your loudspeakers in will heavily influence the sound that reaches your ears, both at low and high frequencies. In these discussions the term "room gain" sometimes comes up. This article was inspired by Erik Wiederholtz (CTO of Perlisten Audio) and his interest in the topic, and he was kind enough to provide measurements and photos from his own listening room for a sealed subwoofer as well as for a vented subwoofer.

COMSOL Conference 2024 to Kick Off in Boston, October 2–4

April 11, 2024 by audioXpress Staff

COMSOL Conference 2024 to Kick Off in Boston, October 2–4

The modeling and simulation event of the year returns to the US this October. The first stop of the worldwide COMSOL Conference 2024 tour is slated to be held in Boston, MA, on October 2–4. The COMSOL Conference provides a space for engineers, scientists, and researchers to showcase their modeling and simulation work, exchange ideas, and learn new modeling techniques.

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

April 10, 2024 by René Christensen

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

Acoustic topology optimization is one of the most interesting new technologies in vibroacoustics. These powerful tools enable engineers to find optimal solutions to problems related to their specific applications and this article presents multiple examples in different areas. The article, originally published in audioXpress, April 2023, includes several examples of transducer geometries modified via acoustic topology optimization.

Simulation Techniques: Lumped Element Modeling of Transducers

March 27, 2024 by René Christensen

Simulation Techniques: Lumped Element Modeling of Transducers

An exploration of the possibilities for product development focusing on modeling of transducers. As many engineering tasks require a common ground from which discussions among those involved in a project can take place in a structured manner, this often involves a so-called model of the concept or product. This article discusses one such model: the lumped element model. This article was originally published in audioXpress, March 2023.

Voice Coil February 2024 Cone and Dome Issue Now Available

January 29, 2024 by audioXpress Staff

Voice Coil February 2024 Cone and Dome Issue Now Available

The February 2024 issue of Voice Coil is now available, and it includes a major resource for all speaker designers and manufacturers, which is our annual Loudspeaker Cone and Dome Manufacturers Directory. In Test Bench, you can find characterizations of the new SEAS Excel T29X001 home audio tweeter, the first transducer to incorporate Composite Sounds' TPCD metamodal technology. The second driver in Test Bench is Eighteen Sound's latest 8NTLS2000 8" high-power handling woofer, for professional audio applications.

COMSOL Releases Version 6.2 of COMSOL Multiphysics

November 8, 2023 by Joao Martins

COMSOL Releases Version 6.2 of COMSOL Multiphysics

COMSOL announced the release of COMSOL Multiphysics version 6.2, adding data-driven surrogate model functionality for efficient standalone simulation apps, and multiphysics-based digital twins, among some of the major new features. For users of the Acoustics Module, version 6.2 introduces a new frequency-dependent Impedance condition for time-domain pressure acoustics, a new anisotropic material model in the Poroelastic Waves interface, and a new Port boundary condition for enhanced modeling of aeroacoustics based on linearized potential flow.

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

October 25, 2023 by René Christensen

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

This article by René Christensen (BSEE, MSc, PhD), offers a valuable tutorial that discusses the unique possibilities of three-dimensional analysis of loudspeaker driver displacement, using Phase Decomposition and Axial-Symmetrical Decomposition techniques. The article demonstrates how a total displacement on a cone surface can be decomposed into different components directly in COMSOL Multiphysics, and how this can reveal some of the underlying mechanisms of the driver.

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

September 27, 2023 by René Christensen

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

The SonicEdge transducer - a cutting-edge microspeaker based on a unique MEMS technology that generates sound using active ultrasound modulation - introduces a completely new class of devices that can deliver constant volume velocity across audio frequencies and beyond. The article details how to model the transducer in lumped-element and finite-element acoustic simulations and how to tailor a desired SPL response using acoustic features. As originally published in audioXpress, August 2023.

«
1
2
3
4
5
6
7
8
»