unable to combine the surfaces for impact analysis

soham

explicitansys.zip

i used this link for reference https://youtu.be/EDtUeS9C_ik. Was unable to prepare the geometry please help its urgent

file is attached

peteroznewman

@soham Attached is a Parasolid V21 file. The trim is not perfect, but you get the idea.

Car Frame United.zip

peteroznewman

@soham

1. I added a solid sphere at the intersection of the tubes and made the diameter larger (1.25") than the tubes (1.0").
2. I used the sphere with the Split Body tool to trim the tubes back to a common surface. Then I added a plane to slice a face into the four spheres. Then I selected the face of the sphere and used Copy/Paste to create a surface. Then I deleted the solid bodies. Then I used Combine to unite all the surfaces.
3. In my initial reply I suggested you could "use Bonded Contact to connect edges of one part to the face of another part if the geometry won't merge." That would keep the tubes as close as possible to the original shape.
4. Complex intersections like four or five tubes intersecting sometimes creates trimming operations that fail. That is why suggestion #3 is sometimes needed.

peteroznewman

@soham

You should always say what version of ANSYS you are using.

If I edit your file in a newer version than you are using, you will not be able to open the file I worked on.

I'm not sure what you wanted at the front. It is okay to use Bonded Contact to connect edges of one part to the face of another part if the geometry won't merge.

Another approach is to introduce a clean body to trim each incoming tube to, then that becomes the connecting feature such as is shown below.

peteroznewman

ANSYS SpaceClaim 2020 R1 document

Car Frame United.zip

soham

sorry @peteroznewman i'm using workbench 19.0 ,yeah and as you said unable to open file. Thank you for the guidance. how can i clean bodies to trim them ?

peteroznewman

@soham Attached is a Parasolid V21 file. The trim is not perfect, but you get the idea.

Car Frame United.zip

soham

it will probably solve my problem to do an explicit analysis. But i have few questions for you sir

1. what is that ball joint like surface ?
2. another thing is how you created it ?( if any commands or how to video tutorial would be a great to understand it )
3. will that ball like surface wouldn't give me a different result as it doesn't

represent my actual geometry

4.What possibly went wrong with original model? any tips will save my time in future .

Truly, thank You for your responses and guidance

peteroznewman

@soham

1. I added a solid sphere at the intersection of the tubes and made the diameter larger (1.25") than the tubes (1.0").
2. I used the sphere with the Split Body tool to trim the tubes back to a common surface. Then I added a plane to slice a face into the four spheres. Then I selected the face of the sphere and used Copy/Paste to create a surface. Then I deleted the solid bodies. Then I used Combine to unite all the surfaces.
3. In my initial reply I suggested you could "use Bonded Contact to connect edges of one part to the face of another part if the geometry won't merge." That would keep the tubes as close as possible to the original shape.
4. Complex intersections like four or five tubes intersecting sometimes creates trimming operations that fail. That is why suggestion #3 is sometimes needed.

soham

@peteroznewman thank you so much sir !