Each element may have a radius or a square corner at either the inner or outer junction. Fixed Tubesheet may be welded to both the shell and channel or may be extended as a flange and bolted to the channel. As with the FSE program, the program allows for eight different loading conditions. Calculations include the required tubesheet thickness, the shell and tube stresses in tension and compression, and the tube to tubesheet joint load for each condition. Flow Induced Vibration analyzes one span at a time.
Spans can be straight or u-bend spans with equal or unequal leg lengths.
Tubes may be bare or finned. FIV also calculates the effect to the tube natural frequency of a longitudinal load. Users may input a crossflow velocity or the program will calculate a crossflow velocity for single shell pass design with segmental baffles. Free Technical Support Free technical support is available to all registered users.