Karman vortices observed around chimneys may induce dangerous structural vibrations at certain wind velocities. The aim of this paper is to analyse the effectiveness of a pendulum damper in reducing vibrations of a steel chimney. A two-degree-of-freedom non-linear model is used to simulate the behaviour of the structure equipped with a damper. https://countryscenesaddleryandpetsuppliers.shop/product-category/sports-medicine-boots-2xcool-value-4-pack/