Isogeometric Analysis for Active Control of Piezoelectric Functionally Graded Plates in Thermal Environment
| Autor: | Shujun Li, Jiang Yafen, Chao Wang, Liu Qingyun, Liu Tao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Coupling
Materials science Article Subject business.industry Mechanical Engineering Physics QC1-999 Constitutive equation Vibration control 02 engineering and technology Structural engineering Isogeometric analysis 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Condensed Matter Physics Piezoelectricity 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Thermal Displacement field 0210 nano-technology business Neutral plane Civil and Structural Engineering |
| Zdroj: | Shock and Vibration, Vol 2021 (2021) |
| ISSN: | 1070-9622 |
| DOI: | 10.1155/2021/5514476 |
| Popis: | An isogeometric analysis (IGA) method is proposed for investigating the active shape and vibration control of functionally graded plates (FGPs) with surface-bonded piezoelectric materials in a thermal environment. A simple first-order shear deformation theory (S-FSDT) with four variables is used to describe the displacement field of the plates. To ensure the investigation of smart piezoelectric structure in the thermal environment closer to the actual situation, a modified piezoelectric constitutive equation with consideration of the temperature effect of dielectric and piezoelectric strain coefficients is implemented to replace the traditional linear piezoelectric constitutive equation. Meanwhile, the neutral surface is adopted to avoid the stretching-bending coupling. The accuracy and effectiveness of the proposed S-FSDT-based IGA method are verified by comparing with several existing numerical examples. Then, the static bending and open-loop control of the plates under mechanical and thermal loads are further studied. Finally, the active control including static bending control and vibration control of piezoelectric functionally graded plates (PFGPs) is also investigated by using a displacement-velocity feedback control law. |
| Databáze: | OpenAIRE |
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