Research Article
Thermoelastic and Pyroelectric Couplings Effects on Dynamics and Active Control of Smart Piezolaminated Beam Modeled by Finite Element Method
Table 1
Properties of the aluminium and piezoelectric layers.
| | Properties | Labels | Units | Beam
aluminium | Sensor
PVDF
biaxially oriented | Actuator
PZT-5H32 | Foam |
| | Length | | (m) | 0.2 | 0.04 | 0.04 | 0.04 | | Width | | (m) | 0.03 | 0.03 | 0.03 | 0.03 | | Thickness | | (m) | 0.001 | 0.001 | 0.001 | 0.001 | | Density | | (g/cm3) | 8.03 | 1.78 | 7.7 | 0.7689 | | Young modulus | | (GPa) | 68 | 5.04 | 62 | 0.69 | | Piezoelectric stress constant | | (Vm/N) | — | 0.15 | −9.11 | — | | Piezoelectric strain constant | | ×10−12 (m/V) | — | 4.34 | −274 | — | | Pyroelectric constant | | ×10−5 Cm−2 K−1 | — | −1.25 | — | — | | Dielectric constant | | | — | 12 | 3300 | — | | Damping | | ×10−3 | 1 | — | — | — | | Constants | | ×10−3 | 0.1 | — | — | — | | Thermal conductivity | | (W/m·K) | — | 1.5 | 1.5 | — | | Thermal expansion | | ×10−6 (m/m·K) | — | 140 | 3 | — | | Specific heat | | J·kg−1·K−1 | — | 350 | 1.5 | — |
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