is there an open or free software for cinema?

[sir--kris]

Hello.

I would need to move cinematics already drawn through a cad, but it does not allow me to apply the right cinematic constraints that I would need.

I looked at many alternatives, but I'm really out of reach for me.

I wanted to ask if there is an opensource or free software for cinematics.

I read that there is mbdyn under linux.

And then you know others?

Hello to all:finger:

 

[sir--kris]

ah I forgot, must treat axioms and solids 3d no only in 2d..

I would need to move a chain on two dentate wheels, but they do not have a constant polar.

fats!

 

[stefano.garbin]

chain on dense wheels? with contact between chain rollers and teeth?
complex and computationally expensive problems.
I don't see anything open-source I can do for you!

 

[sir--kris]

I'm noticing it...I'm noticing it!...but what makes me anger cmq is that a soft as catia v5, has a form of kinematics...so ridiculous!...that in reality does nothing cinematic in reality!...I'm point...you don't put it in the portfolio of modules!bah

 

[stefano.garbin]

Well, I have to say that what you're looking for, if I didn't get it wrong, summarizes in itself cinematic analysis, dynamic analysis, hertzian contacts between cylinders and evolving profiles. . .
no cad, however advanced, that is catia, nx, proe, has in itself modules suitable to analyze in depth these problems!
you have to search in specific software such as adams, simpack, lms-virtual-lab...
In fact, now that I think there is also recurdyn that has own modules dedicated to straps, chains, toothed wheels etc.
However it is all non-open-source stuff and very, very expensive.

 

[Onda]

The software exists, but you have to use it.
finding it free and also simple is not trivial.
take a look at this:https://www.modelica.org/It's a language, there are commercial and free preposts. usually frees are more complex and expensive business.

If you have time to 'lose' is terrific. Of course it's not a game like making movies in solidworks
wave

 

[Fulvio Romano]

The software exists, but you have to use it.
finding it free and also simple is not trivial.
take a look at this:https://www.modelica.org/It's a language, there are commercial and free preposts. usually frees are more complex and expensive business.

If you have time to 'lose' is terrific. Of course it's not a game like making movies in solidworks
wave

You got me on time. .

Anyway I wonder... why all this? What is the ultimate purpose? in most cases a healthy mathematical modeling of the phenomenon solves the problem.. .

 

[sir--kris]

Thank you all for the answers.

I try to answer everyone a bit.

Yes, yes, I can't look for miracles from a cad, but @@@@, I read that pro/engyneer has a module all its promeccanica... which is totally integrated with the cad...and I guess it's simple to use... a little like the kinematics catia!...and it's much more complete!... why does catia not step up?

I had a way to "see" abaqus/simulia, but boys, it is a monster of cae, maybe it will do everything, but it is "impossible" to use for me, I tried to spray his documentation, type user manuals, tutorials ....ecc....totally in English (ovvios)....and they are of an absurd complexity, eyes and cross, they are 4 or 5 thousand pages!

and then find me to know a soft, that does 1000 things, but to me, it only needs one!

final purpose

My final aim is the cinematic simulation, a particular change (change for cars or engines in general) which I have invented, which I have to today, only drawn to the cad, which in the future I would like to patent.

In practice, before putting myself to do dozens of prototypes, I would like to use a soft simulation, to check out various cinematics.

I don't care to calculate the results of the efforts, breaks, fatigue, etc..
for me the pieces of the axieme can be safely considered perfectly rigid bodies.

I just have to evaluate, if the mechanism does not fit, as perhaps, the chain, does not catch well the teeth (when you go to gear) , and jumps some mesh, and consequently calculate well the leverages that command the movements.

I read a bit around, and I realized that a beautiful visualnastran motion would do just in my case, according to everyone, it is very old, and little updated (unless for the travase made in simwise4d) but very simple to use, and good in simulations.

But sincerely, I can't afford any of these soft ones....caito me find it because of the university....but all these other soft...eheheheheh......impossible to buy for me......and to find

 

[stefano.garbin]

Ah, model... I was forgetting.. .
But I don't see him fit to study a problem like this...
Sir--kris needs something more "land land" (and I don't want this statement to be interpreted in a negative way!).
the good old working model 3d, then visualnastra4d, now simwise4d was/is of an enviable simplicity and intuition, but I fear that to make to convergence a problem so you have to tear blood.
a question? as a level of complexity what you have in mind is comparable to the change of a bicycle?
If that's the case, you're just doing dozens of prototypes. .

 

[sir--kris]

Sir--kris needs something more "land land" (and I don't want this statement to be interpreted in a negative way!).

No, no, no, no, no, no, no, no, no, no, I'm quoting you in full.

the good old working model 3d, then visualnastra4d, now simwise4d was/is of an enviable simplicity and intuition, but I fear that to make to convergence a problem so you have to tear blood.

But I'm motivated enough and the effort would.
based on your experience.
which other application can be equivalent to the old visualnastran (and its successors) in terms of "user friendly" ...(go through me the term! :redface ??
also considered internal modules to other cad ...as promeccanica....ecc...ecc
In short... if any of you know it, something immediate like the dmu kinematics of catia v5, but more complete!
Among other things I miss the demo of simwise4d I could have, as I made the request to the Italian distributor (list) and did not want, as I am not a company, but only a private!...in practice they snobbed me! ♪

a question? as a level of complexity what you have in mind is comparable to the change of a bicycle?
If that's the case, you're just doing dozens of prototypes. .

This is a question I can hardly answer: in certain aspects is less complex, in others of course it is more.
For example, in the change of the bike, you have to consider laschi, "games" and etc. that allow you to "fold" the chain to make it pass from one toothed wheel to another, in my case this is not there, but then there are endless screws... to other.

to tell the truth, to do a lot of prototypes, it would not be to exclude, but I want it to be "the last beach".

I would like cmq to adopt a professional and engineering approach, and then...not least, I would take advantage of it to learn a new world (the "virtual" simulation) that nowadays is very important, as it reduces the time of design and development of products, and reduces the actual phase of prototyping.
for the series... learn art... and put it aside!"

ps.: Did you know that the airbus a380 only have a prototype? I say one!!!!! and then production started! an object so complex, totally simulated virtually in every piece! entirely designed by what I feel with catia! !

Your opinion

 

[stefano.garbin]

maybe just one complete prototype in real size... but I believe that evidence on prototypes, even partial and of reduced dimensions have made them in great quantities. . .
Otherwise I don't get on that thing.

ps: Ask a list if there is no "student edition" that existed a few years ago.

 

[sir--kris]

maybe just one complete prototype in real size... but I believe that evidence on prototypes, even partial and of reduced dimensions have made them in great quantities. . .
Otherwise I don't get on that thing.

ps: Ask a list if there is no "student edition" that existed a few years ago.

hihihihi... exact... just one prototype in real size. ...prototypes in a reduced scale, well this is not... definitely the ones in the wind tunnel...for the rest... all in virtual reality.

the student edition I can not ask you......I am no longer a student!!!... already graduated and with state examination already made! :finger:

 

[gerod]

Ask if they rent it!
simwise is the visualnastran, I think they only changed the icons.
at the cinematic level is good but do not expect to simulate complete chains, you put a disaster of time....

 

[sir--kris]

Ask if they rent it!
simwise is the visualnastran, I think they only changed the icons.
at the cinematic level is good but do not expect to simulate complete chains, you put a disaster of time....

yes exact gerod is always he who changed only name in the years and/or name with several distributors.

Now I try to ask... but I repeat... at the only request of the demo, they refused me as I rightly stated that I do not work for a company, but that I am a private.

....uhhhhmmm with a chain say I would have trouble? from what "I assume" the constraints to have to put would always be the same....that is: two constraints for each internal/external knitting coupling, and then....put a bond of "non-competition" (if there is a similar command) to all the shirts...that is the whole chain....compared to the dentate wheels....in practice the chain would stay on the wheels...because it is "set" and could not get out of the same! :biggrin:

 

[enri09]

to simulate the chain you need at least 4 items for each shirt. It's extremely heavy from the computational point of view that you can find a free software that succeeds us.
for what matters, I would suggest that I seriously regret the realization of prototypes: sincerely I have never heard of cinematic simulations of chain mechanisms. If I'm wrong.

 

[listastudio]

dear cristian, our mother house decided to reserve the demo of simwise 4d ( http://www.simwise4d.it ) only users who are actually potential customers, available after purchase (also private, we would miss) and not those who are clearly looking for a free software solution.

in fact, lowered the lists (simwise 4d costs much less than what cost visualnastran 4d), in this phase we are forced to realize the efforts in the channels that can assure us both the return of investments, and a feed-back of real use of the software in the professional and non-hobbies working field.

you have to consider that simwise 4d is in full development (we have a couple of new builds a week) and we are working together with a group of customers to understand together the new features to add compared to the old visualnastran 4d.
For example, with the build 902 of simwise we entered the import of catia v5 beyond v4, after replicating almost all previous features of the visualnastran 4d.

the operation unfortunately has been much more burdensome than expected and has not yet been conclided because, in spite of the change only cosmetic pecepito from the user (the icons with slightly different graphics of which gerod speaks, vice versa we had to recompile the whole source with a new language (to allow us the release of the software to 64bit native with the next version) and use new technologies with the dlls to exploit the potential of windows seven. Moreover, being now both the working model 2d and the simwise 4d under an iconic development team, we are planning to recover all the solutions (2d, 3d and 3d+fea=4d) in a single modulable environment to please depending on the user's needs.

According to our limited resources you will understand that at this stage so delicate we can not in jeopardy and by decision of our mother house offer you the possibility to try simwise 4d but we are to marry the suggestions both of stefano garbin and gerod, because you can both consider the "old" visualnastran student edition in http://www.lista.it/atnet/nota28.htm that the monthly rental of the visualnastran 4d sp3 in http://www.lista.it/atnet/nota44.htm can then completely recover what done with the simwise.

idem for rental possibilities with the working model 2d in http://www.lista.it/atnet/nota45.htmciao!
Paolowww.lista.it

 

[sir--kris]

to simulate the chain you need at least 4 items for each shirt. It's extremely heavy from the computational point of view that you can find a free software that succeeds us.
for what matters, I would suggest that I seriously regret the realization of prototypes: sincerely I have never heard of cinematic simulations of chain mechanisms. If I'm wrong.

You're right about the 4 items (not 2) ...I honestly said two....looking at the assemblies...that is one for the inner mesh....with the two cylinders....and one with the outer mesh....with the two outer platelets.

for what you assert after, sincerely do not lie, never made simulations in the past.:redface:

 

[sir--kris]

dear cristian, our mother house decided to reserve the demo of simwise 4d ( http://www.simwise4d.it ) only users who are actually potential customers, available after purchase (also private, we would miss) and not those who are clearly looking for a free software solution.

in fact, lowered the lists (simwise 4d costs much less than what cost visualnastran 4d), in this phase we are forced to realize the efforts in the channels that can assure us both the return of investments, and a feed-back of real use of the software in the professional and non-hobbies working field.

you have to consider that simwise 4d is in full development (we have a couple of new builds a week) and we are working together with a group of customers to understand together the new features to add compared to the old visualnastran 4d.
For example, with the build 902 of simwise we entered the import of catia v5 beyond v4, after replicating almost all previous features of the visualnastran 4d.

the operation unfortunately has been much more burdensome than expected and has not yet been conclided because, in spite of the change only cosmetic pecepito from the user (the icons with slightly different graphics of which gerod speaks, vice versa we had to recompile the whole source with a new language (to allow us the release of the software to 64bit native with the next version) and use new technologies with the dlls to exploit the potential of windows seven. Moreover, being now both the working model 2d and the simwise 4d under an iconic development team, we are planning to recover all the solutions (2d, 3d and 3d+fea=4d) in a single modulable environment to please depending on the user's needs.

According to our limited resources you will understand that at this stage so delicate we can not in jeopardy and by decision of our mother house offer you the possibility to try simwise 4d but we are to marry the suggestions both of stefano garbin and gerod, because you can both consider the "old" visualnastran student edition in http://www.lista.it/atnet/nota28.htm that the monthly rental of the visualnastran 4d sp3 in http://www.lista.it/atnet/nota44.htm can then completely recover what done with the simwise.

idem for rental possibilities with the working model 2d in http://www.lista.it/atnet/nota45.htmciao!
Paolowww.lista.it

I have already responded by email, exposing the conditions that dictate the possibility or not to "promise" a future investment or not, of course, regarding the purchase of the software license....ecc...ecc:finger:

 

[gerod]

not knowing what to simulate (two crowns + chain I understood, but there is also some other one I think) I would say that already the chain is challenging for simwise: I have enough experience with vn4d and kineto-dynamic analysis I have done with hours and hours of calculation for simulation. I agree with others that the thing is complicated, it takes a lot of time (even machine time) so better to simplify. Among other things there is also the bond gears, maybe you can simulate even two crowns.
Hi.

 

[listastudio]

not knowing what to simulate (two crowns + chain I understood, but there is also some other one I think) I would say that already the chain is challenging for simwise: I have enough experience with vn4d and kineto-dynamic analysis I have done with hours and hours of calculation for simulation. I agree with others that the thing is complicated, it takes a lot of time (even machine time) so better to simplify. Among other things there is also the bond gears, maybe you can simulate even two crowns.
Hi.

great suggestion. In addition to the physical approach (the geometric model of objects and contact between them) you can use the constraints (which solve much more mailed the gears by mathematical means) or a combination of the approaches. two examples: one at level 2d in http://www.lista.it/atnet/nota43.htm (last example, interactive variable pair transmitted by belt) and one at level 3d in http://www.simwise4d.it/ (change to gears, 38th example in the movie "40 minutes slideshow movie).