1st project to draw and model the water tank to test for structural integrity during seismic events.
This drawing shows Dimensions of water tank to be modeled.
Shows the angle of the roof and mid support beam.
Generate the outer shell of the water tank
Cylinder has a defined water line (for meshing) and three sections used to define the 3 different thicknesses of the tank wall.
Tank baseplate. In ANSYS you want to have as even meshing as possible. This means that extra attention had to be given to the tank baseplate. Here you see the circle being divided by a square. This approach helps with the analysis. The outer ring was divided into 52 sections which represent the 52 bolts on the bottom of the tank for stress analysis.
Even meshing around the cylinder walls.
Meshing of the baseplate, as you see the square within the circle (previous slide) is allowing the meshing of the bottom to be mostly even squares with minimal sharp edges. Triangular elements and zones with sudden changes from small to large element sizes should be avoided. The bottom is connected to the outer walls with even meshing from the bottom via the 52 bolts.
AIS – Analytical Input Summary.
- Addition of load drop scenario
- Addition of SFS Rack partially loaded stress analysis
Task Plan
-Revise STH and MTH calculation to replace raw PSD figures with averaged curves and log-log graphs.
Technical Summary (103)
- Modified a 51 to a 103 document.
- Updated Whole Pool Analysis to include MTH
- Updated the detailed stress evaluation to include MTH
- Updated Load drop to include a partially loaded SFS Rack stress analysis
- Updated TH generation to include MTH generations
- Removed internal Areva references and created a traveler document
- Removed sections pertaining to NFS (new fuel storage)
