Host: Japan Association for Wind Engineering
Pages 169-170
Galloping of a rectangular cylinder with a side ratio B/D larger than 1.5 where D is a projection depth and B is an along wind width starts around a resonant velocity of Karman vortex shedding. The amplitude is affected little by a structural damping, and it increases linearly with the velocity. It is tried to clarify in this paper what physical law is possible to explain the experimental results for the galloping. As the results, the non-dimensional frequency defined by the velocity and the vibrating frequency and the projection depth is constant during the galloping. That means a so-called universal Strouhal number can be applicable to the galloping.
