Simulate flexible part

[Dracoholikus]

I am trying to simulate the deflection on this flexible part but i keep failing to do so.

As you can see, the part has cuts that allow it to act like a "tweezers".

Also i need to know the force needed to open it, as it's opening is limited by another part that houses the "tweezers".

I'm used to some FEA on Autodesk Inventor, but not this kind of thing. So please, where can i start looking for a solution for this problem? Tutorials? Books ? Anywhere?

[John_Holtz]

Hi @Dracoholikus

I think you should start by describing what happens when "it fails" since failure covers a wide range of possibilities (meshing, the analysis not running because of problems with the Job Manager, the analysis starts to run but it fails to converge, and so on).

I am guessing from your image that the "tweezer" is being pushed in the -Z direction, and the contact with the fixed part causes it to spread open.

• What prevents the tweezers from rotating in the analysis? (Chances are the rotation is not relevant, so allowing it to rotate is an unnecessary complication.)
• How do you know load to apply? (I think you should be using a prescribe displacement. Chances are you know how far the tweezer needs to move but have no idea what force is required. The prescribe displacement will solve both problems.)

[Dracoholikus]

Understood, i'll post a more detailed analysis of what fails. Also going try to research more on what you've said

[Dracoholikus]

So, i'm trying to get working based on some reading that i did. But it keeps failing all the time, when i click check model it gives no errors and also give me a simulation, but the part does not move like in this image:

The tiny blue arrows inside the part are increasing over time.

But when i try to click Run Simulation, it fails everytime:

I feel like i'm walking in circles, can anyone take a look ?

[Anonymous]

Thanks for sharing this guidelines.