how to make piston rings in free and working condition

[muhammadfalikhnurinnada]

how to make piston rings in free and working condition. I want to know the diameter when it is free and when it is working or under pressure via 3d

 

[kacper.suchomski]

Hi

To find out the diameter under load, you can perform a nonlinear strength analysis in Inventor Nastran.

Modeling is about you defining the geometry. You can read the resultant of other dimensions, but not the dimensions themselves based on guidelines from other fields.

To model various geometric variants, you can easily use Model States to obtain several solutions of one part.

Ps. Try to write directly on the forum. Using other editors makes it harder for others to read.

[muhammadfalikhnurinnada]

I just want to know the free dimensions and the dimensions when installed. it's not about strength.

For example, if I want to make a cone, I can use sheet metal to design the cone. so I can find out the dimensions in sheet form

back to the piston ring, I just want to make the piston ring in an open condition into a closed condition. how to draw it

thankyou for the response.
sorry if the language I use is bad

[kacper.suchomski]

Diameter of the ring when compressed = diameter of the cylinder in which it is compressed.

For example, if I want to make a cone, I can use sheet metal to design the cone. so I can find out the dimensions in sheet form

This is not logic - the differences in sheet metal are calculated; and the diameter of the ring is measured. These are different processes. 

Following the analogy to sheet metal, you can assume a scenario when:

1. You exact know all the dimensions of the expanded ring.
2. You know the diameter of the cylinder - i.e. the diameter of the ring after compression.
3. You know the location of the neutral axis of bending (k-factor)
4. You use the above information to calculate (automatically, inside the program) the remaining dimensions after compression - for example, the distance between the ends.

And once you know the dimensions - Use model states to manage individual parameters.

[JDMather]

@muhammadfalikhnurinnada 

Attach your Inventor *.ipt model here (in compressed or uncompressed state - whichever one is easier for you to model).

[CCarreiras]

You could use MODEL STATES to have both (or more) conditions in the same model.

But that will depends on how you design the model.
Place here the files and we take a look.