Evaluating the Impact of Bearing Misalignment on Rotor Vibration

Bridget Paulus May 14, 2019

Bearings are found in devices ranging from MEMS and turbines to electric motors and even ships. How we account for a bearing’s misalignment (and the resulting rotor vibration) depends on its use.

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Henrik Sönnerlind May 1, 2019

In this comprehensive blog post, we go over the theory behind numerical integration, Gaussian quadrature, Gauss points, weak contributions, and much more.

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Mads Herring Jensen April 25, 2019

By combining several Port boundary conditions, you can easily compute the transmission and insertion loss in exhaust and muffler systems. See more benefits of this feature for acoustics modeling.

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Thomas Forrister April 16, 2019

Think about what happens to a soda or beer can when you crush it. This phenomenon is called buckling, in which compressive stress causes sudden failure in a structure.

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Yogashree Bharath April 10, 2019

What is the heat transfer coefficient, and how do you calculate it? This blog post includes a theoretical background and demonstration of 2 examples in COMSOL Multiphysics®.

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Mads Herring Jensen April 5, 2019

A variety of use cases and a variety of physics: Piezoelectric transducer designs need to account for electric currents, pressure acoustics, stress-strain, and acoustic-structure interaction.

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Claire Bost April 1, 2019

We answer some questions you may have about the Layered Material functionality in the COMSOL® software: What does it do? How do you update existing models? How do simulations benefit from it?

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Thomas Forrister March 27, 2019

It’s not just science fiction: Objects really can levitate. 1 way this is possible is by using sound waves to lift and suspend particles midair. Simulation can broaden the use of this technology.

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Guest Eric Linvill March 26, 2019

In a follow-up to a previous blog post on paper mechanics modeling, Eric Linvill of Lightness by Design compares 3 methods of analysis for multi-ply materials such as paperboard.

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Soumya SS March 20, 2019

To model advanced FSI scenarios, such as swimming mechanisms or airflow around a wind turbine blade, you can use the Fluid-Structure Interaction, Pair multiphysics coupling.

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Thomas Forrister March 18, 2019

To determine the strength of elastoplastic materials, engineers often use uniaxial testing to analyze necking instability. This benchmark model proves that simulation is also a reliable method.

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