How can you simulate the deformation of a leaf spring or flat spring?

3D Design
2

Hello @m.braekman,

What geometry, what material, what load, what connections to the support?
By leaf or flat spring, do you mean an element that can be compared to a straight beam? If the cross-section is constant, the material is homogeneous, the connection to the frame is simple (isostatic assembly) as well as the loading (tension/bending), an RDM form found on the internet should do the trick.
In any other case, SolidWorks' finite element simulation application could meet your need.
Can you elaborate on your question further with an image and some data...

Kind regards.

1 Like
3

Hello

Thank you for your answer.

Here is already a small sketch.

I would like to show the deformation of the spring when the lever pulls it down by pivoting on the A-axis. This has the effect of releasing the blade.

Thank you

 


mecanique_couteau_03.pdf
4

Here is a second example, this time with 3 flat  springs bent or folded.

Each one has two supports and a free game.

 

Thank you


mecanisme_silex.pdf
5

Hello

In all the cases you show in your two PDFs, it is possible to make a simulation without much difficulty.
On the other hand, I'm more reserved for the master spring because you have to have a perfect shape to be able to check or deduce what will happen in real life. As I see it, there will be problems in interpreting the results because it all depends on how this part will be made and the deviation from the 3D drawing.
For the knife, you will be able to know the pushing forces on several points.

Kind regards

 

6

Hello

Thank you very much for your answer. You tell me that it is possible and without much difficulty, but you don't tell me how!!

Is there a tutorial?

Thank you

 

1 Like
7

Hello

I don't really know how to answer you ;-)

You have to have SW simulation and you  have to know how to use it or find someone on the forum who can help you on the parameters to use and especially help you with the validity of your results.

Kind regards

8

Hello

In the absence of a real tutorial, the attached document can help you approach the study of your knife with the simulation module of SolidWorks.
Do not hesitate to contact me if you have any questions.

M. Blt


couteau.pdf
1 Like