Spring element with axial and radial stiffness

How i can model a spring element with axial and radial stiffness in Optistruct?

Please Help?

As per my understanding PBUSH element have K4,K5&K6 for rotation stiffness not radial stiffness.

Please explain.

Thanks

Hemanshu

Someone please reply asap.. Thanks

Yes K4,K5&K6 is for rotation stiffness.Please note, Rotational stiffness values are input based on rotations defined in Radians.

Thanks for the reply.

We want to model a composite (Rubber) hose as a spring (BUSH) element.

As, hoses are cylindrical (means they have axial and radial stiffness; Best to define in cylindrical co-ordinates) and curved (Not in single Plane). So, i have to model them with multiple bush elements (Each element in different Plane; best to define in cylindrical co-ordinates).

So, i want to know which bush element is most suitable for my application in cylindrical co-ordinates.

Please explain the procedure to define also.

I am attaching here file too showing one model as hose and one model as CBUSH (Just for explanation).

Thanks

Hemanshu

Unable to find an attachment - read this blog

PFA old video of Bush element creation.

Unable to find an attachment - read this blog

Thankyou rahul.

While defining CBUSH element in Cylindrical co-ordinates,

does 

r refers to K1

z refers to K2

t refers to K3

or some different.

Otherwise can you reply me in my model by creating CBUSH elements with axial stiffness 19680 and radial stiffness 10?

Please revert.

Hello everybody,

@hemanshu

I need help regarding same. How u get stiffness value of composite rubber hose.

@Rahul

Is it possible to realize the crimp joint in better way.

any help

@Himanshu

@RAHUL