Singh – I took a look at your model and the bellows/pipe/bellows configuration looks OK but the restraints are overly complex and probably need to be revised. Please remember that a tied universal joint will only absorb lateral movement and the growth inside the restraint, ie no external axial movement/rotation. An unrestrained universal will absorb movements and rotations in all six degrees of freedom but also will expose your system to pressure thrust. More information is available in the CAESAR II user’s manual. Also, you may might want to download our metal EJ catalog which has a discussion of types of joints and there capabilities at myej.com.
Dan Edgar, PE
Principal Engineer
Senior-Flexonics, Pathway Div