Design of a tuned vibration absorber for a slender hollow cylindrical structure

The research article “Design of a tuned vibration absorber for a slender hollow cylindrical structure”, co-authored by METU member Asst. Prof. Gökhan Osman Özgen, has been published in Mechanics Based Design of Structures and Machines.

In this paper, details of the design work for a tuned vibration absorber to be used on a hollow cylindrical structure is presented. The vibration problem is of resonant type and the tuned vibration absorber is designed to suppress the displacement vibration response of the free end of the slender hollow structure dominated by the contribution of its lowest transverse vibration modes. The structure is modeled using a commercial finite element software. Finite element model of the structure is verified using experimentally obtained frequency response functions and modal parameters. Effective parameters of the tuned vibration absorber design are then determined based on finite element analysis simulations of the vibration suppression performance of the tuned vibration absorber as it is used on the structure. Details of the tuned vibration absorber design are determined and a prototype is fabricated. Prototype tuned vibration absorber is then characterized experimentally both as a standalone system and also as it is used on the main structure. Vibration reduction performance of the physical prototype of the tuned vibration absorber is also compared with its vibration reduction performance estimated from finite element analysis simulations so that the analysis based design process can be validated. Communicated by Dumitru Caruntu.

Aksoy, T., Özgen, G. O., & Acar, B. (2020). Design of a tuned vibration absorber for a slender hollow cylindrical structure. Mechanics Based Design of Structures and Machines, 48(5), 615-648. doi:10.1080/15397734.2019.1657889

Article access: https://www.tandfonline.com/doi/full/10.1080/15397734.2019.1657889

Keywords:
design; finite element method; magnetic damping; Tuned vibration absorber; vibration control; vibration damping

Other authors:
Aksoy, T., & Acar, B.