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Complete modeling of the irrigation pivot.

Complete modeling of the irrigation pivot.

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FIGURE 2. Dimensional variation between spans of the center pivot.
FIGURE 3. Side view and top views of the irrigation pivot composed of...
FIGURE 4. Complete modeling of the irrigation pivot.
FIGURE 5. Beam element of LS-DYNA. The drive units are joined by a...
+2 FIGURE 6. Spherical joint (LS-DYNA).
The toppling of an irrigation center pivot submitted to wind action effects
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  • Apr 2019
This research aims to improve the study about the stability of truss structures used in pivot irrigation, widely used due to the growing demand for food production, when submitted to wind effects. Specifically, it aims to verify the maximum wind speed supported by an irrigation center pivot structure when submitted to the load effects caused by win...
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Context 1
... the irrigation pivot consists of a large number of pieces (in this case more than 1000 pieces), modeling was performed in a simplified way. The complete modeling of the irrigation pivot structure is shown in Figure 4, which shows the rigid support plane, which represents the soil, the x, y, and z positive axes, with origin point at the center of the fixed central tower, and the elements simulating the friction of wheels with the soil. ...
Context 2
... the irrigation pivot consists of a large number of pieces (in this case more than 1000 pieces), modeling was performed in a simplified way. The complete modeling of the irrigation pivot structure is shown in Figure 4, which shows the rigid support plane, which represents the soil, the x, y, and z positive axes, with origin point at the center of the fixed central tower, and the elements simulating the friction of wheels with the soil. ...