Abstract
Active TMD were previously designed assuming the structural parameters of the optimal passive TMD. However, the active control technique introduces to both the building and the TMD an active stiffness and active damping which change the structural parameters of the controlled structure. This paper presents a process for designing optimal active TMD for tall building control. It shows that the relationship between the first mode natural frequency of the building and the natural frequency of the tuned mass damper depends completely on the required degree of control in the building. A numerical example for a tall building subjected to stationary random wind forces is given.
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