Acoustics & Vibrations Blog Posts
How to Model an Anechoic Coating
Modeling an anechoic coating involves finding the smallest unit cell, truncating the geometry, and analyzing the wave diffration. The COMSOL® software includes predefined interfaces to do so.
How to Use Acoustic Topology Optimization in Your Simulation Studies
Today, guest blogger René Christensen of GN Hearing discusses the importance of acoustic topology optimization and how to apply it in COMSOL Multiphysics. Topology optimization is a powerful tool that enables engineers to find optimal solutions to problems related to their applications. Here, we’ll take a closer look at topology optimization as it relates to acoustics and how we optimally distribute acoustic media to obtain a desired response. Several examples will further illustrate the potential of this optimization technique.
Optimizing a Tunable Organ Pipe for Ocean Acoustic Tomography
Read about a scientist from Teledyne Marine Systems who used simulation to improve a tunable organ pipe design and then compared the results to experimental tests.
Efficiently Calculating the Acoustic Transfer Impedance of a Perforate
Learn how to efficiently calculate the acoustic transfer impedance of a perforate in COMSOL Multiphysics®. (Hint: It involves applying a semitransparent boundary to the model.)
Reduce the Fan Noise of a Turbofan Aeroengine with Simulation
Noisy turbofan engines are often used to power commercial airplanes. You can reduce their noise pollution with the help of acoustics modeling…
Evaluating Microphones and Transducers with Simulation
Research teams at Brüel & Kjær, an industry leader in sound and vibration measurement, use multiphysics simulation to model their microphone and transducer designs. Read the full story.
Reducing Motorcycle Engine Noise with Acoustics Modeling
Vroom vroom! Or not? Researchers at Mahindra Two Wheelers, Ltd. in India used acoustics simulation to mitigate the engine noise in their motorcycle designs.
Quickly and Accurately Analyze Acoustic Reflections with Apps
Read about how you can design a computational modeling app to calculate the acoustic reflections off a water-sediment interface with both speed and accuracy.