A method for along-wind vibration control of chimneys by tuning liners

• A method to reduce the vibration of chimneys by tuning suspended liners is proposed. simplified model chimney with for numerical analysis introduced. Conceptual design and optimization methods are proposed tuned structure. Reinforced concrete steel widely used in waste gas discharge industrial facilities, guaranteeing their safety performance harsh environments important industries society. This paper proposes a novel reduction along-wind movement response outer cylinder, conventional rigid supporting platform replaced combination radial horizontal systems vertical suspension systems. ‘tuned liners’ applied beam-like that able capture liners/chimney interaction validated against more detailed finite-element shell model. obtain parameters system lead significant reductions vibrations whilst satisfying relative requirement. comprehensive study structural under stochastic wind actions performed demonstrate effectiveness system. The characteristics cylinder studied. Comparison TMD solution conducted further explore advantage tuned-liners actions. results indicate top displacement acceleration effectively reduced 62% 70% liners, respectively. similar using would require an auxiliary vibrating mass approximately 300 tons, which avoided liners. Results show technique could be effective control multiple directions, even some unintentional eccentricities.