Structural & Acoustics Blog Posts
How to Provide Structural Stability in Thermal Expansion Simulations
Say you want to compute thermal expansion and stresses in an object, but you don’t know what constraints you need. That’s where the Rigid Motion Suppression feature comes in.
How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver
For a thorough and complete analysis of a loudspeaker driver design, acoustics engineers need to perform nonlinear time-domain studies in addition to frequency-domain studies.
What Is the Doppler Effect?
A siren passes by and you hear a change in pitch. A bug swims across a puddle, causing ripples on the surface. A star in the sky has a reddish hue. These are all examples of the Doppler effect.
The Elephants of Materials Science: SMAs Never Forget Their Shape
Learn about the history and use cases of shape memory alloys such as nitinol. You can also model the phase transformation of these unique materials in COMSOL Multiphysics®.
Teaching Students About Acoustics Phenomena with Apps
Acoustics concepts and their underlying theories can be difficult for engineering students to visualize. For one university, simulation applications proved to be an effective teaching tool.
Ray Optics Simulation of Sagnac Interferometers and Ring Laser Gyros
Have you ever been in a revolving restaurant that slowly spins as you dine? This same concept can be used to understand the operating principles of Sagnac interferometers and ring laser gyros.
How to Model a Cam-Follower Mechanism
Watch a series of animations that show the different types of cam-follower mechanisms before learning how to model them in COMSOL Multiphysics®.
Finding Answers to the Tuning Fork Mystery with Simulation
If you strike a tuning fork and hold it against a tabletop, the peak frequency of the emitted sound doubles. Is there a physical explanation for this “tuning fork mystery”?