Continuing Modeling Issues with 2D & 3D piezoelectric SAW model
Hello all, I’m in desperate need of help with my model. The initial model setup is a 2D cross-sectional SAW device where I have silicon, a metallic electrode as my ground, a buffer layer, a...
View ArticleStresses built up in a rotating disk
I am trying to analyze the stresses built up in in rotating disk. This disk is not subjected to any external loading. Only forces applied is centrifugal forces due to rotation. When I try to model the...
View ArticleUse of Ports to calculate the Transmittance and Reflectance of an array of...
Hi everybody, +Problem: I want to simulate an square array of gold nanorings, in order to get the graphs for the transmittance and the reflectance and find the resonant frequency. +My first approach:...
View Articlehow to draw a rectangle on a 3D cylinder's surface ?
hey ! we are working on the simulation of MEMS Based pressure sensor for biomedical applications. We are not able to create the heater element which will heat the liquid inside the cylinder. Kindly...
View Articlemode analysis for 2D slab waveguide
Hi, Everyone, I am new for using comsol, and firstly I built a easy model to learn. It is a 2D slab waveguide (see attached ). By mode analysis, I found the effective mode index obtained by comsol is...
View Article2D hinge in compliant mechanism
Hi all, I am trying to simulate a compliant mechanism as seen in the attached picture but I am having difficulties simulating the rotating pin in 2D. As see in the picture the structure is composed of...
View ArticleNot able to properly use remesh feature in multiphysics stationary simulation
Hi, I have simulated a steel specimen that becomes deformed due to bending. For that, I use the solid mechanics interface in a stationary study. Parametrizing the magnitude of bending also works....
View Articlestress corrosion cracking
Is it possible to be stress corrosion cracking? The steel structure has tensile stresses and would be susceptible to stress corrosion cracking. Thanks -- Arthur Rupel
View ArticleEddy current probe simulation
Hi all, I'm new in COMSOL right now I'm doing eddy current crack signal processing. what I want to do is to use COMSOL to simulate crack signal then compare with actual experiment results. but now I...
View ArticleNo streamline is shown when "Magnitude controlled" streamline plotting
Hi, I've got something I can't figure out during a simple laminar flow simulation with COMSOL 4.3, so I ask anyone's help for this problem. The problem is that "sometimes" I cannot see any streamline...
View ArticleLocal maxima of solution
Dear all, I use comsol to solving a certain EDP problem (Laplace equation for exemple in crown domain: 2D or 3D domain). The solution is noted 'u'. I want to calculate the all local maxima of the...
View ArticleSImulation of an electrostatically actuated beam
Hi, I am new to COMSOL and presently trying to simulate the pull-in instability of electrostatically actuated micro beams in COMSOL MEMS module. I need further insights into the following topics...
View ArticleHeat Transfer in Soils
Hi, I am a comsol user and I want to have a 2d axisymmetric model. In my model, I have a soil sample that I put a steel bar in the soil. I want to heat the steel bar with a constant temperature 500(k)...
View ArticleHeat conduction in solids - temperature dependent heat transfer coefficient
Hi, I would like to solve a simple heat conduction in solids problem with a temperature-dependent heat transfer coefficient at one of the boundaries h(T) = 1000*(300/T)^1.3 However, the result computed...
View ArticlePlotting the gap distance variable
I am trying to do something very simple, but it doesn't seem to be intuitive. I have a contact pair in the structural mechanics module and I want to plot the gap distance variable as a function of...
View ArticleCalling variable or convert T(x,y,z) = >T(x,y,t) between models
Hi: Please help! I'm very stuck with a quite straightforward problem. I've got two models: 1) Model 1: 3D Heat Transfer Stationary 2) Model 2: 2D Teat Transfer Time Dependent. How can I call T(x,y,z)...
View ArticleImporting real data heat flux boundary condition to COMSOL
Hello all, I'm working on a 2D transient heat transfer project and I can't figure out how to import real data for heat flux vs.time in COMSOL. It only allow me to input a fix value or function, not...
View Articleeddy current
how to get the imaginary component (phase) in the inductor in the high-frequency alternating magnetic field? Comsol 4.2a Help me please
View Article"No frame is defined for 0D applications"
Hello again. I am trying to simulate an E-core transformer. When I click the study 1 and select the show default solver there is an error occurs "No frame is defined for 0D applications" . What is it...
View ArticleElectromagnetic actuator
I have problem with coupling the magnetic that generated by 2D Coil with permanent magnate to actuate the cantilever beam. Also, I have faced problem to specify the boundary of moving mesh that is...
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