Electromagnetics

Case study

Designing MEMS Gyroscopes for Manufacturing
Manufacturing variations are of critical importance in MEMS design. In this MEMS gyroscope case study, Veryst created an approach to look at the effect of a range of manufacturing variations on MEMS devices using the same mesh. We also use semi-analytic equations to enable scalable modeling of the gyroscope electrostatic actuation and pick-off (which senses the motion produced by rotation).
Equation-Based Modeling of Thin Shells for Electromagnetic Simulations
For several of the electromagnetics interfaces provided with COMSOL Multiphysics, a single layer shell feature, the “Transition Boundary Condition,” is available. Veryst created custom expressions to extend this feature for multiple layers. In this case study we discuss the implementation of this new functionality, and the advantages of using such shells for electromagnetic modeling.
Modeling a MEMS LiDAR Mirror
MEMS mirrors raster the laser beam in many next-generation LiDAR system designs. Constructing a finite element model of a MEMS mirror is challenging, as it is difficult to represent the large number of comb fingers in the comb drives that actuate these devices. Veryst addressed this problem by using mixed analytic and finite element approaches to construct accurate finite element models.
Multiphysics Analysis of a MEMS Switch
The responses of a MEMS switch immersed in fluids differs from that in a vacuum. Veryst Engineering developed a coupled electrostatic-fluid-structure interaction model to investigate the switch response time, deformation, and energy dissipation.
RF Tissue Ablation Simulation
Radio frequency tissue ablation is a commonly used and minimally invasive tissue treatment procedure. Accurately modeling this kind of coupled multiphysics problem is often challenging. Veryst developed a COMSOL Multiphysics model accounting for heat transfer, electric field, and fluid flow to study the RF tissue ablation problem where an electrode is targeting a tissue close to a blood vessel.

Service

Electromagnetics
Veryst provides expert consulting services in modeling electromagnetic fields. Our expertise includes modeling electrostatics, magnetostatics, rotating machinery, and similar electromagnetic devices for power, energy, automotive, consumer electronics, biomedical, and many other industries. We use advanced numerical techniques to design, optimize, and validate our clients’ electromagnetic devices to function as digital twins.
Multiphysics Modeling
Accurate simulation of many products now requires a multiphysics approach. Veryst Engineering specializes in multiphysics problems involving solids, fluids, heat transfer, mass transfer, acoustics, and electromagnetics. Our modeling and analysis expertise includes fluid-structure interaction, thermal-structure interaction, structural-acoustic vibrations, conjugate heat transfer, Joule heating, and microwave heating.

Event

Keynote speaker at COMSOL Day: AC/DC Simulations 2023
Dr. Nirmal Paudel is the keynote speaker at this free, online event where he will discuss "Electromagnetic Modeling and Design of Magnetic Couplings." Dr. Paudel's presentation will include demonstrating a workflow for designing a magnetic coupling using COMSOL Multiphysics and its parametric sweep functionality.
Webinar on Electromagnetic Modeling and Design of an Actuator
Dr. Nirmal Paudel presented a free, one-hour webinar titled "Electromagnetic Modeling and Design of an Actuator." He demonstrated a workflow for designing an electromagnetic actuator using the COMSOL Multiphysics simulation software and its parametric sweep and optimization tools in both static and transient simulations.

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