I am doing the test of Autodesk Simulation Mechanical for my company. One of the simulation that we are testing is a floating roof of a tank. The roof has 27277mm of radius and level to the center of 136mm with a simple structure under it. We usually use a nonuniform pressure in other softwares but inventor has a hydrostatic pressure load. However, i can not apply the load to obtain all the arrows in the same direction. My higuest pressure should be in the center.
I dont know if is a problem of meshing , a problem of the form of the roof or what?
I tried with a non uniform pressure but i have the same result...
Some pressure up and others down over a simple shell.
Solved! Go to Solution.
It looks like you may have left the element normal point left to default. Here is a brief explanation of what the element normal does (from the help):
Normal Point (X), Normal Point (Y), and Normal Point (Z). A point in space is used to control the orientation of the element's normal axis (+3 axis), or which side of the element is the top side (+3 side) and the bottom side (-3 side). The normal direction is determined by specifying a point in space using the Normal Point (X), Normal Point (Y), and Normal Point (Z)columns. See Figure 2. A positive normal pressure is applied normal to the plate elements in the direction of the +3 axis and points away from the element normal point.
| Figure 2: Determining the Element Normal
The edge-on view of the plate element is shown.
For your model, I recommed editing the element definition and putting in a value of 1 in the Normal Point (Y) field.
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