Re: What constraint do I use for a component only held by friction?
Thanks for the help Mats, its cleared up some issues for me. I'm still having problems with it, the mass isn't sliding and instead its rotating with the block as if it is fixed to it. I have set one...
View ArticleRe: Stress in joint through prestressed bolt
Is the Creo fastener tool a good tool to see the stresses induced in the joint? Generally speaking, it's not, but it really depends on the specifics of the system you're using it within. The fastener...
View ArticleJoining Sheet metal edges
Hi All, Just that, are ther any guidelines to joining sheet metal edges for Analysis? If I have the edges, inner edges touch due to a chain flange, I get an error of nodes on top of nodes. If i leave...
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Re: "Model is inssufficiently constrained" error. Any ideas?
Hi Steven, Sorry, not really allowed to upload our models. As mentioned, i'm, new to Creo & new to the whole FEA world. The others I work witrh heve their own habits & work around. I have...
View ArticleRe: Joining Sheet metal edges
It really depends on the design itself and what you think is going to be involved in the FEA side of the project. The vast majority of the analysis work I've done for the past 2.5 years has been...
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Re: Stress in joint through prestressed bolt
Andreas, With Creo Simulate 2.0, you will have to make two seperate runs to obtain the desired pre-load. Creo Simulate 3.0 has a check-box to account for stiffness (shown below), and the operator...
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Re: Stress in joint through prestressed bolt
Thank you for your fast and well structured response. I decided to create a new, similar dummy-model, this time with one solid model of bolt, nut and washers. I introduces 5 contacts, between the...
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Re: Stress in joint through prestressed bolt
I could be from your constraints; I'm looking at the last picture you posted and am not entirely clear what you're trying to do with them. Can you post your model? It's also very likely that you have a...
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Simulation License Error
When I Run a Analysis the analysis Results Fails with this message in Checkpoint tab."The License to run the Engine is not available" Please help me with this Issue.
View ArticleRe: Stress in joint through prestressed bolt
Thanks again for your quick response, See my model attached. I tried to insert a rounding at the indicated position, but the my model failes to mesh. I also tried a chamfer, but that made the stresses...
View ArticleRe: Stress in joint through prestressed bolt
Try adding 3 almost 0 stiffness ground springs to each part to stablize the parts for the start of the run.Don Anderson
View ArticleRe: Stress in joint through prestressed bolt
Hi Don, thank you for your answer. I ran your model. I still have a stress error of over 30%. Did you leave the constraints as they were or do you want me to change them? Best Andreas
View ArticleRe: Stress in joint through prestressed bolt
Andreas,I left the constraints as you had them as I do not have enough background on the system being tested to determine what's required for the simulation.Don
View ArticleRe: Stress in joint through prestressed bolt
Don, The purpose of the model is to find a way to accuratly simulate the stresses that occur in a joint through a prestressed bolt. Whatever you must change in the model to achieve that is...
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Simple question on how to add plane to plane friction for mechanisms?
Hi, I have two similar problems on trying to add friction to two flat surfaces. My first problem is turntable and a small mass sitting on top of it. The turntable is to increase in speed until...
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Re: Stress in joint through prestressed bolt
Andreas, When you stated a prestress in the bolt, are you refering to a preloaded bolt? I ran the model with two planes of symmetry, and you can see the stress contours in the plates (von Mises and...
View ArticleRe: Performing a Drop test analysis in Creo-simulate for a plastic component.
Hi Davor,Thanks for your reply, Can u explain in a step by step procedure to me,As i was new to Creo-Simulate. Attached a file,So that u can do a drop test analysis on it. Thanks Anoop Krishna M.
View ArticleRe: Performing a Drop test analysis in Creo-simulate for a plastic component.
I don't think Davor's suggestion is quite what Anoop is looking for - that would just represent the static weight of the component resting on the chosen point. An impact analysis is going to require...
View ArticleRe: Stress in joint through prestressed bolt
Hi Steven, I used the preload feature on the component as a hole( I modelled bolt, nut and washers as one part). (I also defined a measure to adjust the preload value.)You are right, my main interest...
View ArticleRe: Performing a Drop test analysis in Creo-simulate for a plastic component.
hello,In thebasic knowledge ofPTCthereseveralexplanationsinshockconditionsas well as amodel, it is for an older version2000i.Kind regards.Denis. http://support.ptc.com/cs/fr_21/howto/mst2742/mst2742_f.htm
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