Integrating active-passive hybrid piezoelectric networks with active constrained layer treatments for structural damping
Journal
American Society of Mechanical Engineers, Applied Mechanics Division, AMD
Journal Volume
223
Pages
13-20
Date Issued
1997
Author(s)
Wang K.W.
URI
Abstract
The goals of the research reported in this paper are to investigate the feasibihty of integrating Active-Passive Hybrid Piezoelectric Networks (APPN) with the Active Constrained Layer (ACL) or Enhanced Active Constrained Layer (EACL) treatments, identify the benefits or limitations of the approach, and provide insists toward designing such systems. It is shown that integration of APPN with ACL cannot obtain much extra damping because of low inverse transmissibility, while the APPN-EACL configuration can achieve high damping around the shunt frequency. The APPN-EACL can be synthesized to outperform the APPN, EACL and APPN-ACL configurations under both narrowband and broadband excitations. The study indicates that while EACL can outperform ACL when the demand on performance is high, it will become less effective than ACL when control effort is very limited. However, with the help of the shunt circuit, APPN-EACL can outperform the APPN-ACL system even when the limitation on control effort is high. © 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
Other Subjects
Network layers; Passive networks; Piezoelectricity; Active constrained layers; Active/passive; Constrained-layer treatments; Control effort; High damping; Layer configuration; Lower inverse; Piezoelectric networks; Structural damping; Synthesised; Damping
Type
journal article