Passive Control by Pendulum TMD

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Rui C. Barros (Author) FEUP; Catarina M. Sousa (Author) Other

Journal

Title: WSEAS Transactions on Systems

Vol. 16

Pages: 9-18

ISSN: 1109-2777

Publisher: World Scientific and Engineering Academy and Society (WSEAS) Press

Other information

Abstract (EN): The theory behind small amplitude movement of a single pendulum is stated, followed by the construction of a simple example of a coupled pendulum with two degrees of freedom including the unidirectional movement of the structure and the pendulum angle in relation to vertical. These models and the finite elements software SAP 2000 are also applied to a single and to a multiple degree of freedom one bayshear frame building. The application of the pendulum TMD to control the building vibrations is validated by numerical modelling. An additional case with a more complex model was also studied, comprising the secondary reaction wall of a transmission tower testing station whose dynamic behavior under wind action is benefited from placement of a pendulum TMD. The numerical modelling of the studied cases indicates that the application of pendulum TMD's is worthwhile in civil engineering structures.

Type (Professor's evaluation): Scientific