Re: Screw Ball movement in Creo 2.0
I haven't done one before but tangency would be the 1st thought. Since lead screws have consistent pitch, however, I might consider doing this with a relation. Here is a video that might help with some...
View ArticleFastener negative tensile force
Morning. This is a new one on me, how can a fastener tension go negative? WF4 M150 x64 'Advanced' fasteners...
View ArticleHow can you define thermal conductivity as a function of a coordinate system?
I want to model thermal conductivity varying in the x direction with respect to a function that I input.
View ArticleRe: How can you define thermal conductivity as a function of a coordinate...
I think that the closest one can get is by using Orthotropic material properties where it is possible to define k1,k2,k3. These are constant and cannot be varied according to a function.
View ArticleRe: Fastener negative tensile force
More info, this is a ring held onto another component by 32 screw fasteners. Examiniation of the mesh at the interface between the 2 components reveals: 1. Every other fastener has a BIG separation...
View ArticleRe: Fastener negative tensile force
I saw this behavior a few times when fasteners were grouped fairly closely together, such that their separation test diameter regions were close or overlapping. Sometimes just a small tweak in the...
View ArticleRe: Fastener negative tensile force
Thanks Brad, yes, I know that one too. Aslo (and sometimes) when over the edge of the geometry but always when overlapping a surface/volume region. In this case none of these. Had me scratchng my head...
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How to calculate connection of three plates with fasteners?
Hello,I just wonder if it's possible to calculate connection of three plates with bolt fasteners?Here is an example of two beams connected with plates and bolts:What is the best approach in such case?
View ArticleRe: How to calculate connection of three plates with fasteners?
This looks like Civil rather than Mechanical. There are lots of codes for bolted joints. I am not a Civil but I bet some here are and could better help you read the answer from a book (and put the...
View ArticleRe: How to calculate connection of three plates with fasteners?
Hello,Piotr,Have you everlooked at theexplanationsonthe following discussion.Cordially.Denis. http://communities.ptc.com/message/194352#194352
View ArticleRe: Creo Simulate Fasteners
Tad, Will we be able to switch off the automatic preload calculation in Creo 3.0? This step becomes redundant once the correct input preload has been determined to compensate for surrounding structural...
View ArticleRe: Creo Simulate Fasteners
Hi, You should lock the intervening part to its neighbour, not ground. Relative movement of bolted components will be small whilst movement relative to ground could be significant and tend to pull the...
View ArticleRe: How to calculate connection of three plates with fasteners?
Hello Denis,Thank you for your respond. Actually I am doing in the same way as you did. I am using screws instead for bolts but one disadvantage is unrealistic stress image around the middle hole (in...
View ArticleRe: How to calculate connection of three plates with fasteners?
Hello Charles,Thank you for your respond. I think you misunderstood a little my question. I know pretty well how to calculate by hand bolts for different types of plates/beams connections. What I am...
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Re: Creo Simulate Fasteners
Charles, Yes in Creo 3.0, you will be able to switch off the automatic preload calculation. Here's an image of the new dialog. The automatic preload correction will occur only if you check "Account...
View ArticleNew blog post: How to convert a transversely isotropic material to an...
I created a new blog post here.
View ArticleRe: Creo Simulate Fasteners
Tad, Looks good. If a study is run with 'account for stiffness' checked, what feedback is there? Are we told the new fastener input preload required to achieve the desired in the summary file? The...
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Tolerance Analysis cannot be used，How to solve this problem?
When I push the button of "Tolerance Analysis", it can not show the dialog of "Tolerance Analysis", but I have bought the module. Who can help me? Many thanks! (cetollite.dll is not damaged, I'm sure)...
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Re: Tolerance Analysis cannot be used，How to solve this problem?
I cannot read the message, but I have to ask this silly question... is the module installed? When things like this do not work, I file a customer support case immediately. ...and then I post the...
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