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Questions tagged [ansys]

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16 views

Inertia relief in ANSYS - rotating model

I'm trying to use ANSYS to solve statically a dynamic problem. As shown in the image below, there is an orange bar that is constraint to slide horizontally only and attached to another bar (pink) ...
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0answers
19 views

Joint Revolute or Fixed?

a shaft is driven by a motor, it is supported in two places by ball bearings and connected in third place by a motor. how can I use this example in Ansys WB? 1. variant : two places, where the bearing ...
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2answers
81 views

Longitudinal and transversal strain

The Poisson ratio of the material equals 0,33. If I load a cube or a cylinder that is fixed at one end with compression force in ANSYS I can confirm that the ratio is 0,33 by dividing the lateral by ...
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25 views

Flow rate at the vent exit

I am working on a vent. The vent is attached to a box and is designed to extract air out of the box using the venturi effect. Air is made to flow over the vent which creates a significant pressure ...
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17 views

ANSYS Workbench isotropic strain limits strength definition

I am doing a review for the capability of ANSYS progressive damage analysis. One of the strength definition is called Isotropic Strain Limits as shown in the figure below And the input parameter for ...
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14 views

ANSYS progressive damage fiber and matrix damage definition

I am doing a progressive damage analysis in ANSYS Workbench. When defining material properties in engineering data, I need to input Damage Initiation Criteria and Damage Evolution Law as shown in the ...
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1answer
56 views

Model Reduction - ANSYS

I am trying to reduce my model in ANSYS using Craig-Bampton Method. My ultimate goal is to read system matrices, stiffness, damping and mass matrix with MATLAB. I have been researching for a while, ...
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1answer
104 views

Strain gauge - analysis in ANSYS

I am a complete beginner in Mechanical Engineering, FEM and ANSYS so any help would be greatly appreciated. I want to simulate the behaviour of the strain gauges on an object. Strain gauges are ...
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0answers
36 views

How to add Beam cross section properties to imported mesh in Ansys?

Ansys Workbench 17.1 I have a mesh that was imported from Abaqus into Ansys but the beam cross section data is missing. As a result the structural model omits the beam elements. How do I access the ...
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25 views

Bolted joint junker test with finite element method

Anybody knows a tutorial to make a finite element analysis for bolted joints like junker test(fastener vibration) in Solidworks or Ansys?
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0answers
30 views

Ansys Fluent: how to change the temperature digit precision in writing to file XY-plot?

I want to write to file data from XY-Plot with temperature depending on the location. In Axis menu I set a max precision (9) for X and Y. However, Fluent writes data like this ...
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9 views

Is it possible to share the results of a static analysis to another static analysis in Ansys?

I am using Ansys R18.2 I have different load cases to analyze on one single structure. Each analysis starts with the structure being loaded and some bolt pretension then the load case diverges in the ...
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1answer
114 views

Ansys Workbench, defining ambient temperature correctly

this is probably a beginner's question. I have a simple solid material, lets say wood wall. I am performing transient-thermal analysis. On one side, I have elevated temperatures (after 30 minutes, I ...
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1answer
58 views

How to prove that during loading session of glass container, which will happen first - overstressing or buckling (crushing) - via FEA?

How do I prove that during a loading session of a glass container, between two failure modes, overstressing or buckling (crushing), which will happen first via FEA? Is there any scientific way of ...
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1answer
89 views

Debugging Ansys ACT C# Extensions

I'm using the Ansys ACT Api with C# to create an extension for Ansys (Mechanical). When developing the extension I need to build a dll file from C# code (using Visual Studio). My problem is that ...
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0answers
23 views

How to solve mesh error for narrow surfaces in Ansys Meshing?

I am simulating a spherical grooved bearing….e.g. A bearing that has spiral grooves on the ball. Please see the following figures. There is a kind of lubricant between ball and cup, so as to prevent ...
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1answer
55 views

Should I apply Force or Pressure, Ansys Static Structural

I am working on a project where I must find the maximum principal stresses on an object subjected to impact loading condition. I know the velocity of the object (the one which will hit the test object)...
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19 views

Is RotCFD or Ansys Fluent better to capture the wake pattern far downstream of a flow in the case of a rotating blade?

My main constraint is that the wake pattern to be worked on is far downstream. Which one will give me more accurate results? Will these two work well for the far wake at all?
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31 views

Ansys or Solidworks for heat transfer

I intend to simulate heat transfer for the building (greenhouse). And I gonna use conduction through the walls with convention heat transfer (inside air - wall insulation ). After oserving the ...
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74 views

Can a 'Point on Curve Joint' (ANSYS Rigid Body Dynamics) be applied to a 3D curve?

I am looking to simulate a cylindrical barrel with a track cut into it, that a pin slides along - essentially transfering rotational motion of the barrel to linear motion of the follower pin. ...
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0answers
16 views

How to export my model as Solid model IGES Type 186 on Rhino?

I'm not able to find that option while exporting. I need to export this to ANSYS where the other available IGES formats come as only surface models.
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0answers
33 views

How to simulate this negative pressure condition on ANSYS Fluent?

I want to simulate a model which has a negative pressure/suction at the common outlet and openings just like the one shown in the picture below. I want the wind to pass through the model, and the ...
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0answers
11 views

Edge sizing control is applying number of divisions and biasing unexpectedly

When I generate Mesh elements in Ansys Fluent, they aren't generated as expected with the edge sizing control. I've set the Edge Sizing control of this edge with these settings: (Number of Divisions: ...
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67 views

APDL hardpoints nodes keypoints etc

I'm conducting an analysis of a beam structure using beam188s in APDL, Need to find the deflection of a point some distance along one of these beams. I created a hardpoint at this place, but how am I ...
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26 views

How can I define temporary contacts in Ansys?

For a special simulation I need to define a temporary contact between three objects that two of them are perpendicular to one of them and the two push the one step by step. When they are at rest, ...
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1answer
55 views

Ansys multiphysics import deformed mesh to HFSS

I want to run a coupled simulation in Ansys - RF heating and deformation of waveguide. Pictures of project layout and settings are here. I calculated RF fields and surface losses in HFSS; imported ...
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1answer
108 views

Finding Poisson's ratio of 3D model in ANSYS

I want to find the Poisson's ratio of a 3D model, not the material but the model. How can I do this in ANSYS workbench? I am using this formula, but I can't get it to work with different models. I am ...
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24 views

Modeling high thermal expansion under fire

I am trying to use Ansys Workbench (Transient Thermal probably coupled with Static Structural analysis) to simulate behavior of a fire protection sleeve. It is used to seal the fire sectors in place ...
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117 views

FEA Modelling of wood

I am working on designing an item for my local circus, a teeterboard (essentially a see-saw that people jump on each and it launches them in to the air to do flips etc) . I am working to get it ...
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0answers
31 views

How to restart a coupled pore fluid diffusion analysis in ansys apdl?

i am trying to restart a coupled pore fluid diffusion analysis using multi frame restart method; but after the initial run of the model, the following message has appeared : the restart command doesn'...
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0answers
32 views

Can I get a graph of the span-wise lift distribution on a wing using SolidWorks flow simulation?

I'm working on a project that is a small cargo rc aircraft.. so i wanted to design the wing spar so that it can withstand the lift force created by the wing.. I know how to use solidworks simulation ...
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0answers
63 views

What is the meaning of repetitive node indices and the 0th node from an ANSYS element list file?

This element list file is not generated by me. Most lines are OK, but I can't understand some of them. The initial lines are like this: ...
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50 views

Can Ansys import parameters

In Ansys workbench is it possible to import parameters with part geometry? Eg. if I create part or assembly in Creo or SolidWorks and define parameters for this geometry, can I export parameters with ...
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1answer
159 views

How to avoid a Contatct penetration in ansys

I am trying to simulate contact between a flat rigid plate and a sphere. I am applying a load on the flat rigid plate and the sphere is flexible. How can I avoid this flat from penetrating into the ...
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1answer
222 views

How to use more CPU cores in SpaceClaim?

This is a more technical rather than professional question. I have a hyper-threaded quad core CPU. While building models in SpaceClaim I noticed that it only uses one logical core. A single core will ...
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0answers
17 views

Modelling Convection in Fluent

I am new to Ansys Fluent and am trying to model heat transfer through a system of fins. The analysis is in 3D. I have set the Energy Equation as ON. The problem is that when I set heat loss by ...
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1answer
86 views

Writing a User Defined Function for Ansys Fluent

Is it only possible to write a User Defined Function for Ansys Fluent in C? All of the tutorials I could access online do so. I was wondering if this could be done using Java, or any other language ...
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0answers
54 views

Importing a time-temperature list into Ansys Fluent for simulation

I am using Ansys Fluent for my simulation. I have a series of connected U pipes surrounded by a hot block (343K) with an inflow of cold water (298K) which is discharging the block. I would like to ...
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0answers
321 views

how to release specific degree of freedom in ANSYS Workbench?

I'm designing a truss which has 9 elements in ANSYS Workbench. since it is a truss, all of the elements are truss elements and can not tolerate momentum. I used <...
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1answer
469 views

How to remove a 'mesh edit' item in ANSYS Workbench?

I accidentally inserted a mesh edit item and tried moving a node, but now can't remove it. The context menu doesn't have any helpful options and I don't see any relating tools in toolbars. How to ...
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63 views

Material properties of Wheels

I am trying to do a static and dynamic analysis of railway wheel using ANSYS. Can anyone give me a source for the commonly used wheel materials properties? The commonly used steels are: Please ...
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0answers
95 views

modelling truss in ANSYS

I want to model an ideal truss in ANSYS 16.1 and by ideal I mean all of the joints are pinned joints and so the momentum can not be transferred at joints(like attached image). The problem is that I ...
2
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1answer
2k views

ansys workbech structural- difference between pressure and surface force application

In Ansys workbench , structural module, in modelling, what is the exact difference between pressure and surface force application? Is surface force applied in same manner as that of pressure ...
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0answers
52 views

Multiphase-Electrostatic ANSYS Workbench

I am trying to simulate multiphase fluid flow (gas-particle) through a electrostatic field. Are there any ways to do this in ANSYS?
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2answers
1k views

Display element coordinate system using Ansys Mechcanical APDL

Is there any way to display element coordinate system in ANSYS Mechanical APDL GUI (the same way the global coordinates system is displayed)?
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2answers
439 views

How can I reduce the computation time required to simulate a brain tissue penetration model?

I am trying to model the strain generated by inserting an electrode device into brain tissue. I've had some success in doing this in ANSYS Explicit Dynamics. Here's a link to a GIF showing the ...
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1answer
465 views

ANSYS Mechanical Contact behavior

I am working on ANSYS Mechanical. As i was reading the user's guide i saw a section about contact behavior. Symmetric and asymmetric. Can someone explain me on this? How to use these contacts?
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1answer
1k views

ANSYS Workbench - Support type when lifting

Which type of support should I use when trying to simulate stress in structure that is lifted. Lifting is done by using four lifting lugs and chain angle is 45 degrees. What type of support to use on ...
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0answers
108 views

Ansys: issue with geometry visualisation

I am new to ansys and I am running ansys 17.1 on a macbook (on a parallel desktop) and I have a problem I can't solve. When I import or create a geometry, I can only see the silhouette of it in the "...