The loading cases of sheets 2 & 3 were developed by the pressure vessel group. Sieve weight and additional drag force on it will be handled in two different ways: (1) Stresses will be generated applying the sieve weight as concentrated loads to the pipe stanchions, the sieve itself being deactivated which is done for comparison with the FE-Pipe results and ASME processing. For stress printout see sheet 6 & 7, ANSYS input files 70-73. (2) Weights will be applied to the sieve as uniform loads. The sieve has been modeled to span in one direction as a plate with the same rigidity as the 30X10 wedge wire stiffeners which are spaced a 150.mm. In the other direction the sieve is modeled as a plate with a much smaller rigidity by making the Youngs modulus only 10% of that for the main carrying direction. For stress printout see sheet 8 & 9, ANSYS input files 80-83. The overall computer model consists of the upper head, the cylindrical wall, and the lower head with skirt. The sieve has been modeled as explained in item-2 above. The 180X6 edgeplates were modeled as beams resting on support stanchions. Flexural-torsional buckling of these slender support plates is being dealt with by others. All support stanchions were modeled as 3"SCH.80 pipes. Whereas the four outermost supports are linear columns with appropriate section properties, the four innermost were actually modeled as pipes with finite element walls connected to the meshing system of the lower adsorber vessel head, see sheet-4. Internal piping & nozzles are not part of the computer model.       Additional links for this web site:   [Sample Calculation] [Compressor Foundation Dynamics] [Large Deflection Plate Panel] [Sample Structure] [Pressure Vessel] [Reference Letter] [Resume] [Efficiency Drawings Calculations] [Home] .