Re: Non-symmetric results for symmetric model and load?
I checked again the SPR today. No new information yet.
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Re: Structural results evaluation: deformed display scaling percentage meaning
Thanks for all of your replies! bye
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Re: Slow Mechanism Analysis
Brian, Take a closer look at your components and assembly setup.Are all component placement constraints defined, No assumed references or orientations? (3 placement constraints along with orientation...
View ArticleRe: FEM analysis of a spring
Nobody can resolve this issue?I understand that it is about a semi-theoretical problem, something that you can treat with classic formulas, but I think it is still interesting.
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Re: FEM analysis of a spring
HelloIdonotknowifthisdocumentinEnglishcanhelpyou.Kind regards.Denis https://webfiles.uci.edu/dbeerer/lit/Mechanical%20Springs%20Wahl.pdf
View ArticleRe: FEM analysis of a spring
I may be mistaken but I think a good variable rate spring design is accomplished by a variable spring diameter and not coil...
View ArticleP vs h-type
Hello All, I have a reasonable armoury of info and knowledge with respect to the relative merits, use and background of the h and p-type approach. I have Ken Short's note on Adaptivity from (about)...
View ArticleSpreader Beam Analysis
I am having trouble getting believable results from simulate while analyzing a simple spreader beam. I am new to simulate, so I don't know if I am constraining and/or loading it correctly. Any advise...
View ArticleRe: Spreader Beam Analysis
After digging further into my material properties, I am concerned. I opened up the text file for my steel plate material which was created long ago and not by me. The numbers would be correct if the...
View ArticleRe: Spreader Beam Analysis
Lucas, You will get high stresses around all the holes. These are all stress raisers by an unscientific factor of 3-ish. 1. Do a hand calc to get max stress in outer fibre at centre support and approx....
View ArticleRe: Spreader Beam Analysis
Lucas, Create a 1x1x1 cube. Ensure that you are conscious of your model units (know where you are). Assign your material. Check the mass props and the numbers/units in the material definition form....
View ArticleRe: Spreader Beam Analysis
Charles, Thank you for your reply. I've moved on to another more urgent project for the time being, but I'll be back to try your suggestions in a day or two. I might have to dig out a text book to do...
View ArticleRe: P vs h-type
I don't know what you would consider a "slam-dunk", but it sounds like the old allegations I had encounter years ago that you can't trust the adaptivity. I heard this a lot from NASTRAN/ANSYS users,...
View ArticleRe: P vs h-type
In principle, any problem which can be solved by the h-version can be solved by the p-version and, conversely, any problem which can be solved by the p-version can be solved by the h-version. There are...
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Re: Customer stating CREO SIMULATE does not do FEA
Richard, GEA (Geometric Element Analysis) is the acronym RASNA used to define the adaptivity method where the fidelity of the model is increased by raising the polynomial order and the element is...
View ArticleRe: Spreader Beam Analysis
I'm so happy we have SI units in the civilised world 1 lbf = 1 lbm * gso 1 lbf/(in^2) = 1 lbm g / (in^2)and g = 32.17 ft/(s^2) = 32.17 * 12 * in/(s^2)so 1 lbf/(in^2) = 32.17*12 lbm / (in*s^2) Seems...
View ArticleRe: P vs h-type
Thanks for that Steven, You are right, the old allegations ... I too have had to do comparisons in in the past for disbelievers. Thanks for your presentation. I should also do some simple presentations...
View ArticleRe: Spreader Beam Analysis
Can you change the units in the Edit > Setup menu?? I know that's how I change between length units when modelling but not sure if this applies to material properties also.
View ArticleRe: Spreader Beam Analysis
Patrick Asselman wrote: I'm so happy we have SI units in the civilised world Even then, we have people who insist on using mm-kg-s model units, resulting in forces in mN, torques in u-Nm and stresses...
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Re: Spreader Beam Analysis
Lucas, Did you try simple hand calculations on the upper center hole for shear tear-out and bearing?
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