flexible components and "mechanism"

[Matteo]

I had a request for a work to be done with proe wf3: it is a cinematism to be realized with mechanism and then to make with animation. I'm undecided whether or not to accept... first I would like to understand something: if I define together a component as "flexible" (the classic spring that follows the two constraints to the ends) then I can define a "joint" that allows me to see the shift of the two mechanisms (piston + cylinder) to which the spring rests and together the spring that deforms?

from the first test it seems not... thank you in advance to those who solve me doubts!

Hi.
Matteo

 

[maxopus]

If you mean that the answer is yes.
http://www.youtube.com/watch?v=epv36wjaaq0&feature=relatedper minute 1,10 about there is animation of a cam that compresses a spring.

 

[Matteo]

That's right!

Thank you!

 

[Hope]

Hi. .
the mechanism that is seen in animation is very similar to one of the examples present in the guide of proes.
the problem is that that spring will not be that of your cad model (which you made flexible earlier) but will only be a "representative" component.
At least I've never been able to compress the real spring. But I'm curious to know if someone else did.

 

[Matteo]

hi, in assembly environment I can safely mount the spring on the two supports and make it stretch by changing the position of the supports.

the problem is that when I define a "joint" on one of the supports (to which I would like to connect a "motor" in the "mechanism" environment) in the passage to "mechanism" I lose the "joint". the error message is more or less "the joint is not defined between two components"... I will make some evidence and I will deceive you.

Hi.
Matteo

 

[Matteo]

I did this test:

- together with two coaxial plates, one of which tied via "joint" (and its "servomotor" in mechanism)
- assembly of the spring built together taking as reference the ends of the two knives

if I change the position of die piattelli together and regenerate everything ok (the spring deforms) but if I apply a motor that moves one of the piattelli and I calculate an analysis in "mechanism" the spring does not deform.. .

 

[Prof.]

the spring that is seen in the simulation of you tube is a function of the mdo (dynamic analysis of the mechanisms), which allows to define a "mode" entity between two points, simulating the effect that a real spring would have on the mechanism. when you use this function the spring is graphically represented and the diameter of the tondino is configurable via a config option.

flexibility cannot be used in the simulations of mechanisms.
Bye.

 

[Matteo]

the spring that is seen in the simulation of you tube is a function of the mdo (dynamic analysis of the mechanisms), which allows to define a "mode" entity between two points, simulating the effect that a real spring would have on the mechanism. when you use this function, the spring is graphically represented and the diameter of the tondino is configurable via a config option.

flexibility cannot be used in the simulations of mechanisms.
Bye.

Thank you, sir.

... and attempt to model the "flexible" component together with references on the parts that determine its size? I can't "regenerate" geometry during the analysis in "mechanism"!

 

[Prof.]

Thank you, sir.

... and attempt to model the "flexible" component together with references on the parts that determine its size? I can't "regenerate" geometry during the analysis in "mechanism"!

yes, but you should insert an analysis feature that measures the distance between the parts and with a relationship to the length of the flexible component.
Bye.

 

[Matteo]

yes, but you should insert an analysis feature that measures the distance between the parts and with a relationship to the length of the flexible component.
Bye.

Done! but when I turn the analysis of mechanism the part that should stretch remains firm

 

[Prof.]

Forgive me I had misread your last post.
you can only make that by changing the odds the flexible model is updated, but in the mechanism the simulation cannot do it.
Bye.

 

[Matteo]

Okay, thanks again for consulting!

 

[Prof.]

Thank you! I already sent you the invoice!!! ;-)

 

[Matteo]

Thank you! I already sent you the invoice!!! ;-)

Yeah? expiry 60 days I hope