Hello
I am trying to simulate the deformation that a sphere in contact with a plane would undergo, if a force normal to the plane were exerted.
I have researched the Hertz theory and am looking to implement it on Solidworks, however, I am not an expert at all in the field and I have a lot of difficulties.
First of all I can't make the sphere/plane contact, I did a lot of research and consulted youtube videos to try different methods (create a reference plane to make the center of my sphere coincide, use two revolutions and create another plane, make a dividing line on the sphere, edit the features), but nothing comes to fruition
Could a charitable soul guide me step by step so that I could roll my sphere on this plane?
Could a person expert in simulation also enlighten me on the steps carrying out the deformation, I have read that it is a nonlinear study using the finite element method.
I would then like to block my sphere between two parallel planes (to roughly model the contacts of a ball between two paths of a bearing), will other different maneuvers be necessary or I will just have to reproduce what we did for the first plane sphere contact?
Thank you in advance for your help. I am attaching a picture of my two pieces
capture.png
1 Like
Hello
If you're not in too much of a hurry, I can watch.
On the other hand, there is something in your statement that makes me scratch my head. You talk about a sphere sandwiched and deformation that's still fine, but, after you say you want to roll the sphere I don't see the point.
I think that when you say simulation you are actually talking about motion studies with Motion and that has nothing to do with PEF simulation.
Which of the two do you want???
Please say if you want pear or cheese or both!
On the other hand, seeing the resistance of the materials which are either the ground or the sky is doable.
Kind regards
PS: are you a student???
Thank you for your answer
I would like to simulate the deformation of the materials when the ball is sandwiched exactly, but first simply the plane sphere contact in order to visualize the order of magnitude of the deformation. The Motion side doesn't interest me.
thank you for getting involved, and yes I'm a student
Good night
Hello Dodo
Okay, once you've said that, what can we help you with because you don't join any parts or assemblies, you don't say anything about the dimensions or materials of the sphere, the ground and the sky. You don't at least propose the draft of the simulation parameters so that we can tell you if you are on the right track and the elements to be corrected.
As my little forum mates would say, we help, but we don't do it in the place of.
Attach complete STP files.
Kind regards
Hello
Well done, I'll pass on right away!
The ball is of radius 3mm and the thickness of the steel plate is 1mm, the two components are stainless steel, I fixed the plate on a wooden support however for wood there is no elasticity parameter, except for the balza, so I used this one not seeing how to get around the error messages from solidworks.
solidworks.zip
Generally speaking, you have to make a take-away composition or pack'n go. In your case (1 asm and 2 prt), you can zip them directly.
Then put the zip as an attachment to your message
1 Like
@Stefbeno (whom I salute) rightly because otherwise the links between the parts are cut and the assemblies are unusable.
In the meantime and if I were you I wouldn't bother with wooden plates. I would rather use a virtual surface (which you can make flexible by indicating the min and max values) to constrain the sheets. Given the diameter of your ball, it is not likely to deform the sheet metal. However, I note that we have no indication of the force that will be exerted on the upper plate.
To Plutarch
How do you create such a flexible surface? With right click I can make my surface virtual, but how do I change its characteristics afterwards?
I intend to vary the force between 100 and 10000 N,
Thank you very much, see you later!
Hello
In simulation==>Contacts between sets==>the Virtual Wall function, you can set it to flexible, but you need to specify the values in N (a value you don't seem to know).
I think that by searching on the net you can find information on flexibility.
Then you have to create the material in SW by entering all the parameters. It is this material that must be put for the simulation or make an approximation with the virtual wall.
Between us, your sheet metal with a ball that presses it with 1 ton, it will stamp, and will no longer roll. Unless you replace the sheet metal with hardened or at least thicker steel and one of the hardest on the raceway.
Quite between us, but I won't tell anyone, I have the impression that you lack a lot of knowledge to carry out such a project. What bothers me is that you ask, that your sentences are very evasive, but above all without giving all the elements to take into account.
You could at least say what this thing is for and why wood with plastic would do just as well. There is a difference between doing collaborative and Allo! Please 11 11!
Good luck for the future