Acoustics & Vibrations Blog Posts
Why Sounds Travel Farther at Night
Why do sounds travel father at night? In this blog post, we answer this question with COMSOL Multiphysics® and its ray-tracing method.
Sound-Absorbing Boundaries: Local vs. Extended Reaction
Room acoustics simulation is a key part of designing a comfortable acoustic environment in a room. Explore the features in the Acoustics Module that are well-suited for room acoustics simulation.
Exploring the Partial Fraction Fit Functionality in COMSOL Multiphysics®
A guest blogger from Acculution ApS gives a comprehensive look at how he is using the Partial Fraction Fit function, introduced in COMSOL Multiphysics® version 6.2.
Modeling an Acoustic Trap: Thermoacoustic Streaming and Particle Tracing
Acoustic traps are used in a range of biomedical applications for manipulating cells and particles. See how an acoustic trap can be simulated in COMSOL Multiphysics® here.
Convolution and Auralization for Room Acoustics Analysis
Convolution is applied in various fields for signal and image processing, statistics, and more. Explore 3 methods for performing convolution in COMSOL Multiphysics® here.
Modeling Acoustic Energy Generation in Thermoacoustic Engines
Thermoacoustic engines do not use moving parts, keeping their structure very simple. Learn more about these engines and how to model them here.
Full Acoustic Room Impulse Response of a Small Smart Speaker
The acoustic response of a small smart speaker can be modeled using the built-in hybrid FEM–ray coupling functionality in the COMSOL Multiphysics® software. Learn more here.
Modeling Room Acoustics Using a Hybrid Approach
Explore a hybrid approach that combines ray-tracing and finite element methods for modeling room acoustics.
Computing Transient Sound Pressure Levels in COMSOL®
Sound pressure level metrics are important to know when trying to make results from a transient simulation easier to interpret on a logarithmic scale. Learn how to compute 3 of these metrics here.
The Octave Band Plot for Acoustics Simulation
The Octave Band plot provides an easy and flexible way to represent any frequency response, transfer function, sensitivity curve, transmission loss, or insertion loss in your acoustics analyses.
How to Use the New Spatial FFT Feature for Applications in Optics
COMSOL Multiphysics® version 6.0 includes the new Spatial FFT feature. Learn how this feature can be used in applications in optics here.
Designing Tidal Turbines That Are Safe for Marine Life
A guest blogger from Xi Engineering discusses how his organization is using acoustics simulation to study the impacts of tidal turbines on marine species.
Modeling Speaker Drivers: Which Coupling Feature to Use
Explore how to model 4 different speaker drivers, including moving-coil transducers, balanced armature receivers, piezoelectric drivers, and electrostatic drivers.
Modeling Piezoelectricity Using the Discontinuous Galerkin Method
COMSOL Multiphysics® version 6.0 introduced a feature for modeling piezoelectric devices that is more convenient than alternative methods. Here’s how to use it in your models.
Axisymmetric Solid Mechanics with a Twist
As of version 6.0, you can easily include circumferential displacements in 2D axisymmetric models using the Solid Mechanics interface. Check out one example here.
Validating an Acoustic Ray Tracing Simulation of a Chamber Music Hall
The well-known Konzerthaus Berlin theater boasts 3 separate halls: The Grand Hall, the Small Hall, and the modern Werner Otto Hall. Here, we explore the acoustics of the Small Hall with simulation.
Characterizing Piezoelectric Sensors for Nondestructive Testing
Piezoelectric sensors must be carefully designed and calibrated. Simulation can help make this process more efficient…
Modeling Piezoelectricity: Which Module to Use?
Acoustics Module, MEMS Module, Structural Mechanics Module: Which one should you use for your piezoelectric device modeling? Get a comprehensive overview of your options here.
Designing the Sound Absorption of Microlattice Structures
Using numerical simulation, you can design microlattice structures with sound-absorbing properties, and then print them via additive manufacturing without traditional manufacturing constraints.
Micromagnetic Simulation with COMSOL Multiphysics®
A guest blogger from Fudan University in China used the Physics Builder in COMSOL Multiphysics to create a “Micromagnetics Module” for performing micromagnetic simulations.
3 Examples of Optimizing Loudspeaker Components
Whether in a home theater system, gym, or massive concert venue, loudspeakers need to perform optimally. 1 way to do so is by performing a shape or topology optimization study of its components.
Simulating Wind Load on a Sports Car’s Side Door and Mirror
Vroom vroom: In this blog post, we use large eddy simulation (LES) and structural analysis to analyze wind loads and airflow on the door and side mirror of a sports car driving at high speeds.
Building a Solid Foundation for Understanding Seismic Waves
In 1906, there was the California earthquake. In 1908, there was the Lawson Report. In 1910, Harry Fielding Reid proposed the elastic rebound theory. Continue on a deep dive into seismology…
6 Examples of Simulation-Driven Loudspeaker Development
From headphones for virtual reality gaming to powerful transducers for hearing aids, here are 6 examples of multiphysics simulation being used to develop new and improved loudspeaker products.