Many times we find bellow for vibration isolation attached with piping connections of rotating m/c like pump, compressor in P&ID itself - is it possible to have good design fatigue life with metallic bellow ?

If the bellow is purely for vibration isolation &/or for absorbing construction mismatch, not for any themal cyclic loading, is there any use of carrying out thermal analysis in Caesar-II for such lines ?

regards,

sam