Research Article
Thermal Effects on Vibration and Control of Piezocomposite Kirchhoff Plate Modeled by Finite Elements Method
Table 1
Properties of the plate, sensor, and actuator.
| | Properties/labels/units | Plate | Sensor | Actuator | | Al | PVDF | PZT-5H32 |
| | Length (m) | 0.6 | 0.25 | 0.25 | | Width (m) | 0.4 | 0.25 | 0.25 | | Thickness (m) | 1 | 0.2 | 0.2 | | Density | 8.03 | 1.78 | 7.7 | | Young modulus (GPa) | 68 | 5.04 | 62 | | Reduced elastic constants (GPa) | | | | | |
— | 5.04 | 66.2 | | | — | 3.25 | 19.2 | | | — | — | 23.5 | | Piezoelectric stress constant | — | 0.15 | −9.11 | | (Vm/N) | | Piezoelectric strain constant | — | 4.34 | −274 | | ×10−12 (m/V) | | Reduced piezoelectric constant | — | 0.018 | −23.4 | | (C/m2) | | Pyroelectric constant | — | −1.25 | — | | ×10−5 Cm−2K−1 | | Dielectric constant | — | 12 | 3300 | | | Thermal conductivity | — | 1.5 | 1.5 | | (W/m·K) | | Thermal expansion | — | 140 | 3 | | ×10−6 (K−1) | | Specific heat J·kg−1·K−1 | — | 350 | 1.5 | | Damping ×10−3 | 1 | — | — | | Constants ×10−3 | 0.1 | — | — |
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