Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4976711 | Mechanical Systems and Signal Processing | 2017 | 17 Pages |
Abstract
In this paper the modal coupling of linear viscoelastic oscillators is discussed. In particular, it is demonstrated that in presence of space-homogeneous ideal hysteretic damping, namely, viscoelastic materials with loss factor constant as function of frequency, a set of coupled linear oscillators can be always decoupled by a real coordinate transformation. This result can be extended to the case of a not space-homogeneous ideal hysteretic damping if the modes of vibration of the system keep practically real. The proposed approach is applied to a linear Multi-Degree of Freedom system representing the Finite Element Model of an aeronautical structure.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
F. Mastroddi, M. Eugeni, F. Erba,