topic Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End in Inventor Forum

Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Tue, 04 Sep 2018 19:50:23 GMT

Hi, I would like you to help me with a problem that I have when doing the constrain

I would like to know how to do so that a spring that is positioned on an axis can rotate one of the legs and the other is fixed

Thanks for your help

kelly.young has embedded your image and edited your subject line for clarity: PROBLEM CONSTRAIN

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

j.palmeL29YX — Tue, 04 Sep 2018 19:50:54 GMT

I'd suggest to model 2 different springs (one with legs in the start position and on with legs in the rotated end position) and then use view representations.
Or dou you want to animate the rotation of the one leg? That's possible too, but I wouldn't do that. It's not worth the trouble.

cadder

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

johnsonshiue — Tue, 04 Sep 2018 19:51:07 GMT

Hi! Please share the files here. There is a technique involving creating surface and using Transitional constraint. Another way is to do it in Dynamic Simulation environment.

Many thanks!

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Wed, 05 Sep 2018 20:24:08 GMT

Hi, I attach the file

kelly.young has zipped your files for clarity.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

johnsonshiue — Wed, 05 Sep 2018 22:36:33 GMT

Hi! The file you attached is incomplete. I also need "Torsion Spring" subassembly and its components.

Many thanks!

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Thu, 06 Sep 2018 18:01:14 GMT

Hi, I resend the attachment

Thanks.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

johnsonshiue — Thu, 06 Sep 2018 17:49:13 GMT

Hi! Many thanks for sharing the files! I get what you are trying to do now. You want to simulate the torsion spring at various stages of load, right? For this particular model, I don't think there is a way to do it in Inventor unfortunately.

In order to create such movement and deformation, the spring sweep path has to be extended or contracted. 3D Helical path only allows change in parameters associated with the path, not by the movement within the assembly. There might be a way to do that by using iLogic rule but the relationship would be brittle and easy to break.

I have to say I do not see a reliable workflow to simulate the movement. I am sorry.

Thanks again!

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Fri, 07 Sep 2018 06:40:26 GMT

Hi,

What is the angle you want this to rotate?

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

j.palmeL29YX — Fri, 07 Sep 2018 10:54:57 GMT

Unfortunately I still don't know if you want to animate the movement or if different static positions are sufficient.
If you don't need an animation, here attached a basic idea how to solve the issue.

A screencast how to manage it: https://knowledge.autodesk.com/community/screencast/160b8108-ecc4-4a91-895b-3d74242599ec

The Inventor files come from Inventor 2015. (I can't open your files, therefore I modelled myself it with fictional dimensions)

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Fri, 07 Sep 2018 12:12:59 GMT

Would this suite you?

It mimics what you are after

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Mon, 10 Sep 2018 12:50:03 GMT

Sorry if was not clear enough in reality the moving leg of spring rest on the Part and when the part rotate the leg also while the other leg of the spring should remain fixed

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Mon, 10 Sep 2018 13:00:42 GMT

Hi, That would be the idea look at the reference images

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Mon, 10 Sep 2018 16:30:08 GMT

I share the file

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Tue, 11 Sep 2018 12:30:51 GMT

I tried to put hits whole together but for now there still are problems witch constrains that do not work so well.

Will need to do more work on that to find a stable reliable way.

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Wed, 12 Sep 2018 17:45:03 GMT

Hi, I really need the animation of the movement but if it can not be done

I will have to do it the way you proposed

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Wed, 12 Sep 2018 17:49:53 GMT

It can be done,

It is only a matter how complicated it is going to be.

I hoped easy way would do fast, but unfortunately run on to basic problems.

When do you need that?

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Wed, 12 Sep 2018 22:08:57 GMT

In the end I have made something like this:

AI 2019 data set for download :https://autode.sk/2p0nCY6

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Thu, 13 Sep 2018 17:53:18 GMT

Hi, I can not open the file

with what inventor's version is made ?

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Cris-Ideas — Fri, 14 Sep 2018 07:31:53 GMT

AI 2019 unfortunately.

Have you seen the video? For some reason youtube stopped working.

in case here is a link to download video: https://autode.sk/2QnC6hr

Cris.

Re: Inventor 2017 Constrain Spring Positioned On Axis To Rotate With Fixed End

Anonymous — Fri, 14 Sep 2018 13:19:53 GMT

Hi Crhis,

I wanted to thank you for your help
best regards