PSI - Issue 54

E.S. Gonçalves et al. / Procedia Structural Integrity 54 (2024) 83–90 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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2. Results and Discussion 2.1. Modal analysis Through a modal analysis using SOLIDWORKS software, a frequency of 4.0145 was obtained for the first vibration mode, as presented in Figure 3.

Fig. 3. Modal analysis After this analysis, using the formula for the vibration period of the lighting column = 1/ , a vibration period of 0.25 seconds was obtained. 2.2. Static analysis As a result, a combination of axial and bending stresses was obtained, with the highest value corresponding to 138.74 MPa. Figure 4 shows that the most requested area is in the central part of the lamppost, more precisely in the connection region between the square and cylindrical sections.

Fig. 4. Combination of axial and bending stresses

For the displacement, a maximum value of 6.9 cm was obtained at the free ends of the solar panel attachment