@article{Abdulla AL-Rashidi_2020, title={STRUCTURAL STABILITY AND FATIGUE ASSESSMENTS OF DUAL-AXIS SOLAR TRACKERS USING FINITE ELEMENTS ANALYSIS}, volume={19}, url={https://geomatejournal.com/geomate/article/view/1749}, abstractNote={<p>The use of advanced technologies to increase the amount of solar irradiance received,<br>using solar tracking systems, is an important development that will enhance the efficiency of solar<br>modules’ ability to produce energy. However, solar trackers are vulnerable to failure or collapse, due to<br>aerodynamic loads. This study analyses a dual-axis tracking model, using finite elements numerical<br>modelling, to assess its structural stability and fatigue under static and cyclic loads. A rectangular solar<br>tracker, with an area of 27.4 m² is investigated, using COMSOL Multiphysics 5.3 software. The results<br>demonstrate that the maximum von Mises stress obtained is 92.51 MPa, which is less than the yield stress<br>(200 MPa), and that the resulting safety value is 2.16. The maximum settlement obtained is 19 mm. In<br>addition, the maximum usage fatigue factor obtained is 0.046. The study therefore concludes that the solar<br>tracker structure satisfies the design requirements of the stability and fatigue criteria. Moreover, it<br>concludes the ground concerned is stable, and exhibits only a slight amount of settlement that falls within<br>the acceptable range, according to geotechnical engineering design.<br><br></p>}, number={73}, journal={GEOMATE Journal}, author={Abdulla AL-Rashidi}, year={2020}, month={Sep.}, pages={8–13} }