I have a supported sheet metal structure (like a spring) which is deflected by a certain amount, and then relaxed. I am expecting to see some permanent set, but it seems either my property specs are not right, or I am making some mistake setting up the analysis.
As for properties, for the sheet...
I have read the GDT book which outlines examples on parallelism and flatness tolerancing and how one orientation and the other is form type of tolerance. Can somebody help me interpret the attached JPEG example? I came across this example where parallelism was called out on the datum surface...
All
I have been having convergence issues with a contact problem that I have set up. Can somebody give me generic pointers in how to go about debugging why the problem is not converging?
To give a very generic backgrouund - I have a steel component which has a remote displacement boundary...
All
Am having terrible convergence issues in the model that I have set up. After days of debugging I have narrowed it down to at least the problem location.
I have a very low Youngs Modulus material (X) sandwiched between two high Young's Modulus materials : B - bottom and T-top.
The...
I need to model a spongy material for which I am only interested in its performance (stiffness) in the Z direction. My scope does not need me to see the stresses/strains in the spongy material.
Following is what I have (if Z is my vertical):
1) Cross sectional area (X-Y plane) of this...
All
I am wondering what is the best source (am willing to pay a subscription fee) for comprehensive material properties data? Ideally if the source is tailored to Ansys users (so that I can directly import the properties database into my Ansys db file), that would be perfect.
Especially for...
I am new to workbench environment. I am using v 10.0 and have questions about how to get results information about a specific location.
For example: I need directional deformation data on only one face. I can plot it by selecting only that one face, but how can I dump the data into ascii...
All
I need inputs on setting up a model (static structural) if I want to estimate the stiffness of a support component in an assembly.
The assembly is complex, but the support component is a fairly straightforward stamped steel structure. How do you recommend setting up the model to compute...
I have been trying to solve a complex contact problem in workbench environment for a while now. I have following questions:
1) In the geometry branch of the tree all the 4 items have a small check mark at the side before the analysis begins. Then once I try to solve it, then I get this message...
I have worked with contacts (mostly small displacement) in the classic environment and have recently moved to WB. There seems to be something that I am doing wrong as none of my contacts seem to work (althought these problems I am working on are large displacement). So I setup a simple 2-link...
In my problem, I want to rotate a lever and engage it into a hook. This lever while rotating applies certain loading onto a piece of plastic.
My goal is to supply this lever rotational displacement as input and then deduce the reaction forces on the plastic and the hook in which the lever is...
My workstation prfile is as follows:
4 cores (each 2.4 GHz)
4 GB RAM
2 HDD, each 300 GB and each at least half empty
My model (and this size will at least double if I want to incorporate all the aspects of the assembly):
NUMBER OF ELEMENT TYPES = 1
291952 ELEMENTS CURRENTLY SELECTED...
This is a pretty vague post, because I have not yet started modeling but in the process of building the model. Am interested in modeling permanent set, residual stress, in a very thin leaf spring (complex shape).
What all properties would I need for the material? Am thinking of modeling 10...
Hi
I have a pretty simple problem but am having lot of trouble modeling it in Ansys 10.0
There are two volumes in my model:
1) is a complex shaped cavity
2) is a complex shaped cam, which moves in this cavity
The side surface of the cam can hit the inner surface of the cavity and there by...
Hi all,
I have a non linear model (contact elements) and have already solved the static scenario for the assembly. It converges well.
Now I want to subject the same assembly, with the same loading as in the static analysis, to a following transient load:
half-sine wave
10 milli sec. duration...
May not be the right forum to post, because the question is not about Ansys functionality -- but it is about performance.
I recently upgraded my system from a 2 processor to 4 processor Opterons which now support 64 bit computing. My question is, should I upgrade my OS from Windows Server 2000...
Hello all,
I am trying to model a fan in Ansys FLOTRAN, using FLUID142 fan option.
When I specify the real constants for elements, if I choose to have a fan option, I need to input:
1
TYPE Type of distributed resistance or fan model:
4 = Fan model: aligned with a coordinate axis -
2...
What are the probable reasons for a heat transfer problem (using only SOLID70 elements) not converging?
I have created a very detailed structure of semiconductor die (resolution: few micron level details included), thermal interface material and lid (dimension: @37.5 mm square). I have heat...
Hello all
I am modeling air-flow between the fins of a heatsink. Following is the problem I am faced with:
Due to the limitations coming from the geometry of the entire assembly, I have to model the space between the fins as two volumes instead of just one volume. In this case, how do I apply...
Hello all,
I am modelling air flow between heatsink fins. To try a small problem, I tried it out with 2 fins and space between the fins. It works perfect.
Now I have moved on to a bigger problem where I am modeling half heatsink (symmetry) and airflow between the fins. Everthing is same as the...
