use algor 2010

[mir]

Hi.
some of you use algor because I don't see big participations in the forum yet it seems pretty good to me.... the problem is that I do not find clear and exemplary tutorials.

Does anyone know if he finds anything?

greetings
♪

 

[AngeloB]

we are not many actually
I first did the tutorials, then all exercises of accuracy verification examples manual, then I bought a book and did the course.
in fact the most useful is the acuracy verification examples

 

[mir]

I don't understand from the site.

What book did you get?

Thank you.
♪

 

[AngeloB]

the ac.. was discharged from the site, the book is buyable directly to the algor but it is not great

 

[mir]

I'm sorry, but I don't understand where the ac is discharged? Do you have to lodge?

 

[AngeloB]

You must have the service contract in order.
However it is:http://www.algor.com/service_support/accuracy_ver/verification_examples.asp

 

[mir]

hmm I have the demo version valid 20 days....

 

[mir]

Hi.
I ask you something that I miss... I have any beam structure on which I apply 1000 n distributed .... I wonder... use the distributed force?
That is, if so, if the 1000 n in the area on which I distribute the load I get my cargo on the m2?
if the above is correct (and to confirm that I have understood) if I add the doubling the area of my beams (for example by doubling the number of beams) I should halve the stresses.

Can you help me?

Thank you.
♪

 

[cesius79]

Hi.
I ask you something that I miss... I have any beam structure on which I apply 1000 n distributed .... I wonder... use the distributed force?
That is, if so, if the 1000 n in the area on which I distribute the load I get my cargo on the m2?
if the above is correct (and to confirm that I have understood) if I add the doubling the area of my beams (for example by doubling the number of beams) I should halve the stresses.

Can you help me?

Thank you.
♪

Look, if you don't indicate how the loads are. ..however I seem to understand that they are orthogonal loads to the direction of the beam axis, in such case the beam is pressed to bending and the sigma depend on the moment of inertia...if you want to halve the maximum load you have to increase the moment of inertia... .it is absolutely not true that by doubling the beam's sez halves stresses!! any mechanical manual can help you.
Hi.

 

[mir]

Sorry.
but I explained really badly and your observation is correct. to explain me better I'll get you a pdf.

we put that the structure must hold 1000 n: I drew in the fem the structure and I inserted, as surface force on all beams, the load of 1000 n selecting the upper area of the beams (see 123.jpg)

I do not understand how the load is put and I ask myself the following questions:
- every single point is subject to 1000 n or is the load distributed?
- if I add a beam (see the right design in pdf) the total load does not vary (still remains of 1000 n) and it also redistributes on the new beam inserted?

thanks for the help
♪

 

[cesius79]

Sorry.
but I explained really badly and your observation is correct. to explain me better I'll get you a pdf.

we put that the structure must hold 1000 n: I drew in the fem the structure and I inserted, as surface force on all beams, the load of 1000 n selecting the upper area of the beams (see 123.jpg)

I do not understand how the load is put and I ask myself the following questions:
- every single point is subject to 1000 n or is the load distributed?
- if I add a beam (see the right design in pdf) the total load does not vary (still remains of 1000 n) and it also redistributes on the new beam inserted?

thanks for the help
♪

hi mir... then, I don't know algor so I can't help you...but I can point out that the answer you are looking for is already present in your words..if you apply a surface force of 1000n then it is quite obvious that you are applying 1000n/mm2. If the load was concentrated (a mass placed on the frame at a given point of your structure) then you have at that point and only in that 1000n...I hope I have explained or otherwise have caught your perplexity
p.s. have taught me that control of units of measurement is a great start to understand if they are committing straphalcions. Keep it in mind.
p.p.s. if you say that the structure must hold 1000n and then put 1000n/mm2 then you are submitting all the structure to a resulting force of 1000[N/mm2] * a[mm2] (with a loaded structure area) that returns you [N] and that surely are greater than the 1000 cu speak.... insomma, there is a little too much confusion! !

 

[mir]

finding some algor manuals is an enterprise!

in algor (as I seem to have understood also in ansy) I can apply a surface force ([N]) or surface pressure ([N/mm2]).... if I apply a 1000 n force, my load is distributed on the selected area while I apply a pressure of 1000 n/mm2 on each mm2 I applied 1000 n.

correct?

 

[cesius79]

finding some algor manuals is an enterprise!

in algor (as I seem to have understood also in ansy) I can apply a surface force ([N]) or surface pressure ([N/mm2]).... if I apply a 1000 n force, my load is distributed on the selected area while I apply a pressure of 1000 n/mm2 on each mm2 I applied 1000 n.

correct?

I apologize but in the meantime I had edited my msg.. because I preferred to say more. Do you make a lot of confusion with ste surface forces...can you make a practical example of how this structure is loaded? is there an omino above is there the accumulated snow? ?

 

[Arturo79]

Sorry.
but I explained really badly and your observation is correct. to explain me better I'll get you a pdf.

we put that the structure must hold 1000 n: I drew in the fem the structure and I inserted, as surface force on all beams, the load of 1000 n selecting the upper area of the beams (see 123.jpg)

I do not understand how the load is put and I ask myself the following questions:
- every single point is subject to 1000 n or is the load distributed?
- if I add a beam (see the right design in pdf) the total load does not vary (still remains of 1000 n) and it also redistributes on the new beam inserted?

thanks for the help
♪

hi, in general, whatever the software you use, if you select an area and apply a force, it is the same software that divides the load on the selected surface and therefore it is as if you have a pressure (you don't have to worry about the value of xkè pressure is executed all automatically).
If you want your forces to be concentrated in particular points, you better not use a 3d model but a pattern with beam elements and apply forces to the points you simply want by applying them to the knots.

a general rule: before performing simulations on more or less complex structures, it is better to simulate the behaviour of simple structures of which the theoretical result is known