How to plaster or snugly fit a flexible sheet onto a rigid body?
How to plaster or snugly fit a flexible sheet onto a rigid body?
(OP)
Hello,
As seen in the attached picture, I want to plaster or snugly fit a thin flexible sheet (yellow) onto a rigid body's cylindrical surface (green). How can I do this with UG? If impossible with UG, which program should I use?
Starting point of the problem is this:
I have a design which will be produced from a flexible plastic material. When produced, this flexible planar part will be plastered or fit onto a rigid body's cylindrical face..Normally, I made the design as planar, because this sheet will anyways take the bent shape since it is flexible... Now, I have to make FEA analysis of my flexible shape while it is plastered or fit onto that rigid body with cylindrical shape...However, my part was designed as planar, but I have to make the analysis with its bent shape onto the rigid body. I cannot fit or plaster my thin flexible sheet onto that rigid body's cylindrical face using UG. How can I do that?
Thanks very much in advance.
Emrah
As seen in the attached picture, I want to plaster or snugly fit a thin flexible sheet (yellow) onto a rigid body's cylindrical surface (green). How can I do this with UG? If impossible with UG, which program should I use?
Starting point of the problem is this:
I have a design which will be produced from a flexible plastic material. When produced, this flexible planar part will be plastered or fit onto a rigid body's cylindrical face..Normally, I made the design as planar, because this sheet will anyways take the bent shape since it is flexible... Now, I have to make FEA analysis of my flexible shape while it is plastered or fit onto that rigid body with cylindrical shape...However, my part was designed as planar, but I have to make the analysis with its bent shape onto the rigid body. I cannot fit or plaster my thin flexible sheet onto that rigid body's cylindrical face using UG. How can I do that?
Thanks very much in advance.
Emrah





RE: How to plaster or snugly fit a flexible sheet onto a rigid body?
Regards,
Emrah
RE: How to plaster or snugly fit a flexible sheet onto a rigid body?
If you want to create a formed part just for analysis purposes, i would do the following:
extract a face from the cylindrical body and then thicken the sheet. Insert>formed feature>extract> (then select the face icon)
or,, use "section curves" to section the cylindrical face, then sweep the curves to create a sheet body then thicken the sheet body.
If you want it parametric thru sketch then place each section curve in a sketch and constrain them before you sweep them into a sheet/thicken. then save as a new component.
I am on NX2 so i dont know if there are any newer tricks to this. Also it would depend on how complex the mating surface is.
RE: How to plaster or snugly fit a flexible sheet onto a rigid body?
RE: How to plaster or snugly fit a flexible sheet onto a rigid body?
Once you have that working you will be able to take the edge curves off a plane and wrap them to a cylinder. To create a body do, as another user above suggested, extract a face trim the boundary and thicken.
Downside is that if this is a metal forming application then we woyuld normally apply bend allowance as the metal stretches about it's neutral axis not the inside face. You can duplicate this quite easily by creating a neutral axis offset of the cylinder diameter.
If you want to use shapes other than cylinders it gets to be a significantly tougher ask. Please let us know how you went.
I answered the reverse of this recently and John Baker came up with the better solution so credit where it is due.
Regards
Hudson