A novel method for improving damage detectability in nonlinear wave modulation: Modeling and design of a driving system
| dc.contributor.author | Sepehry, Naserodin | |
| dc.contributor.author | Asadi, Sina | |
| dc.contributor.author | Ehsani, Mohammad | |
| dc.contributor.author | Zhu, Weidong | |
| dc.contributor.author | Nejad, Firooz Bakhtiari | |
| dc.date.accessioned | 2022-07-14T23:16:37Z | |
| dc.date.available | 2022-07-14T23:16:37Z | |
| dc.date.issued | 2022-06 | |
| dc.description.abstract | Nonlinear wave modulation (NWM) is a nonlinear health monitoring technique that allows for the early detection of minor faults and damages. The purpose of this study is to develop a novel, low-cost and portable device to improve the damage index (DI) in the NWM. 2D spectral finite element method is used to model the electromechanical coupling between piezoelectric patches, an inductor and a structure in a feasibility study. In the simulation, an inductor is attached to each actuator to compare the results with those without an inductor. A specific inductance value is selected for the piezoelectric transducer to achieve resonance, which results in an increased voltage amplitude. A circuit that is inexpensive and portable has been designed and implemented. The results of two experimental setups, an aluminum beam with boundary loosening and a sandwich panel with bolt loosening as damage, are compared with those of the NWM without an inductor. The average of sidebands as a DI is then compared for various frequency combinations using the two NWM techniques i.e. with and without an inductor. | en_US |
| dc.description.uri | https://www.researchsquare.com/article/rs-1727959/v1 | en_US |
| dc.format.extent | 23 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.genre | preprints | en_US |
| dc.identifier | doi:10.13016/m2v16p-k7zt | |
| dc.identifier.uri | https://doi.org/10.21203/rs.3.rs-1727959/v1 | |
| dc.identifier.uri | http://hdl.handle.net/11603/25164 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Mechanical Engineering Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | en_US |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | A novel method for improving damage detectability in nonlinear wave modulation: Modeling and design of a driving system | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0003-2707-2533 | en_US |