Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams

Figure 7

Stability diagram of H beams in the porosity versus angle of attack plane ( versus plane). The results correspond to H beams with and , where the lengths , , and are defined in Figure 2. Shadowed areas indicate unstable regions, although the right hand side region is only marginally unstable. Note that, for large values of the porosity, H beams are not unstable. Red symbols correspond to dynamic test results (see Section 3.2).