Modal analysis of cracked beam with a piezoelectric layer
| Autor: | Duong Thanh Huan, Luu Quynh Huong, Nguyen Tien Khiem |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Acoustics Modal analysis Charge (physics) 02 engineering and technology 021001 nanoscience & nanotechnology Piezoelectricity Condensed Matter::Materials Science 020303 mechanical engineering & transports Modal 0203 mechanical engineering Normal mode Structural health monitoring 0210 nano-technology Actuator Beam (structure) |
| Zdroj: | Vietnam Journal of Mechanics. 43:105-120 |
| ISSN: | 0866-7136 |
| DOI: | 10.15625/0866-7136/15648 |
| Popis: | Piezoelectric material was employed first as sensor/actuator for structural control and then it has got an effective use for structural health monitoring and repairing damaged structures. In this report, modal analysis of cracked beam with piezoelectric layer is carried out to investigate effect of crack and piezoelectric layer thickness on natural frequencies of the structure and output charge generated in the piezoelectric layer by vibration modes. Governing equations of the coupled structure are established using the double beam model and two-spring (translational and rotational) representation of crack and solved to obtain the modal parameters including the output charge associated with natural modes acknowledged as modal piezoelectric charge (MPC). Numerical examples have been examined for validation and illustration of the developed theory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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