Questions tagged [simulation]
The simulation tag has no summary.
169 questions
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SolidWorks assembly with contacts imported into Ansys Workbench 2022
Why does Ansys not recognize a split surface created in SolidWorks, a cylindrical surface, where each half contacts a different part in the assembly and have different types of contact, and imported ...
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What's the issue here with Rigit Dynamics?
I was trying to simulate my walking robot in ANSYS rigid dynamics. I made it work before with another version of the robot (Different body shape but exact same walking mechanism) and it worked. But ...
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What is the best place to start learning ASPEN HYSYS? should i be going for the standard books or online resources?
Multiple resources are available but I am overwhelmed and can not think of where to start.
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How to Modeling Ultrasound Propagation & Energy Distribution From a Curved Surface Through Three Distinct Homogenous Media?
I am working on a problem involving a cylindrical US transducer designed for radial emission. Positioned vertically (axial length perpendicular to the ground), the transducer emits energy ...
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Problem of reversed flow in Fluent iteration
I'm work on simulation of non-Newtonian fluids in horizontal pipe, I'm use a condensate of gas rheo=690 , but in the operation of process of simulation we see the problem of reversed flow when the ...
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Boundary conditions for stratified thermal storage model with variable in- and outlet positions
I am working on a stratified thermal storage model for a vertical tank and I am having trouble defining the boundary conditions for the edge cells.
All the models I could find online have the inlet at ...
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304
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python Simualtion -1 DOF Mass Spring Damper
I am stepping in the coding of motion simulation and have found in internet following python codes for practice purpose.
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Modifying Johnson Cook Model in ABAQUS simulations
I am currently simulating a high strain rate impact of commercially pure nickel and found a constitutive equation in DOI: 10.1051/jp4:2006134015. They have a modification of the Johnson Cook model to ...
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High-level sun sensor modelling for satellite
I am searching for some references on how to model at high level a sensor in terms of the statistical interpretation of the errors (bias, noise, ecc). Do someone have any reference (books or papers) ...
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Very slow Slew Rate after an 8V regulator
I have a requirement to provide a regulated 8V supply to power a FET. The regulated 8V is supplied from a DC bench power supply and needs to have a very slow slew rate to replicate someone turning the ...
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How can I determine the best thicknesses of a circular plate to achieve minimum weight and high strength?
I want to design a circular plate made from iron ductile material, So I want to determine the best thicknesses of the profile (t1,t2,t3,...etc) as shown in the image tyo achieve the best plate weight ...
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Adding traffic lights to a junction, what is the logic of using lights with arrows?
I'm doing a job and one of the feature is adding realistic traffic lights to junctions of a network and I have to be very specific. So, if on the ground there are arrows signaling the traffic flow (e....
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Searching for a Library of Simulink models of Fuel cells
I have a task at hand and in order to do that I must create a model library of Simulink/Simscape (or any other similar software) of models.
Can I find such models in excess anywhere? The models must ...
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802
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Implementing convective boundary conditions for 1-dimensional finite difference computation of heat equation
I am simulating heat transfer through a 1-dimensional wall with convection on both sides. For the wall, I implemented a finite difference model like this:
$$
u(x, t + ∆t) ≈ u(x, t) + c [u(x + ∆x, t) − ...
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Clarification on the location of stress and strain output value in Abaqus
Today, I had a discussion with my teacher about the location of stress and strain output in Abaqus. I believe that Abaqus outputs stress and strain based on Gauss integration points. However, my ...
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Different currents in the phases of a Multiphase Buck Converter
I am a student of electrical and computer engineering and am currently working on a project that involves the study of a Multiphase Buck Converter or Synchronous Buck Converter. Thus, in simulating ...
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Simulating production of a product by a machine
I'm a beginner and trying to learn simulation modeling. My aims for simulation includes;
A firm receives 5000 orders per week. 120 products are manufactured in an hour. The machine runs for 4 shifts ...
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Simulation modelling/ Digital twin of Injection molding process?
How can we make a digital twin of the Injection molding process in a production line? My idea is to do predictive maintenance and predict following downtime based on historical time series data of the ...
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Steep gradients spontaneously emerge during convection (discrete approximation)
I am learning fluid dynamics, and noticing an odd problem in my computations which I understand, but wouldn't expect, so I would like to know what I'm missing. I feel like it's something silly.
At ...
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Are there any advantages of using BEM for contact problem over FEM, apart from lesser computational cost?
FEM - Finite Element Method
BEM - Boundary Element Method
If we had access to "enough" computational resources (to discretize the entire volume domain in FEM to the same degree of fineness, ...
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140
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How to calculate scaled speed
While working on a project I faced a difficult problem.
Let's say I have car at a 1/10 scale. Now if a real car drives at 10 m/s, it would take 3 seconds to travel 30m. If we look at the scaled car ...
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Non-Linear Analysis Convergence Problem in Ansys
I am currently conducting a static structural analysis study in Ansys and encountered convergence prolems.
I have a very large thermal gradient (almost 600°C) as input from a precedent transient ...
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I'm trying to understand an equation from a motor simulation $\dot w_i (u_ i ,w_i,l _i , \dot l _ i )$
I have a simulated motor and I'm not understanding the math to control it.
This is the equation for the force of the motor, also called an 'actuator'.
$\dot w_i (u_ i ,w_i,l _i , \dot l _ i )$
w ...
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What is meant by Solid Mesh and Surface Mesh? [closed]
Solid Mesh vs Surface Mesh, which method should I choose in simulation studies. What is the geometry behind these meshes. Which mesh gives accurate results?
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Stress/impact simulation of a solidworks design
I am creating a waterproof box that will be submerged under a few feet of soil and also must be able to withstand the impact if dropped from a height.
I am wondering if it is possible on solidworks, ...
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