Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6954663 | Mechanical Systems and Signal Processing | 2018 | 15 Pages |
Abstract
In this article experimental damage localization based on Hâ estimation and state projection estimation error (SP2E) is studied. Based on an introduced difference process, a state space representation is derived for advantageous numerical solvability. Because real structural excitations are presumed to be unknown, a general input is applied therein, which allows synchronization and normalization. Furthermore, state projections are introduced to enhance damage identification. While first experiments to verify method SP2E have already been conducted and published, further laboratory results are analyzed here. Therefore, SP2E is used to experimentally localize stiffness degradations and mass alterations. Furthermore, the influence of projection techniques is analyzed. In summary, method SP2E is able to localize structural alterations, which has been observed by results of laboratory experiments.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Armin Lenzen, Max Vollmering,