Numerical and experimental assessment of hybrid active-passive damping treatments

Abstract

The concept of hybrid active-passive damping treatments was proposed in the 1990s in order to ameliorate problems of instability in traditional active control systems in the higher frequency range. Although many researchers have studied various configurations of hybrid active-passive damping treatments to obtain more efficient control results, these can be categorised in only four configurations. While benchmark studies of their performances have been carried out, since control performance may depend on the dynamic characteristics of the structure, control algorithms, dimensions and the locations of sensors/actuators, further numerical and experimental investigations are required to determine the most efficient configuration/control method. In this paper, the performances of the four types of hybrid active passive damping treatments applied to beam structures are experimentally investigated. Numerical results using the Finite Element Method are compared with experimental control results. With comparison, the results of benchmark studies are validated and possibility of expanded applications is discussed.

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Identifiers

ORCID for Emiliano Rustighi: orcid.org/0000-0001-9871-7795

ORCID for Brian Mace: orcid.org/0000-0003-3312-4918

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