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Piezoelectric Simulations - COMSOL Multiphysics

Piezoelectric SimulationsOutline Overview Examples Relevant Products Useful FeaturesOverviewIndustries Using Piezoelectric DevicesPiezoelectric DevicesAerospaceAutomotiveAcousticsBiome dicalMEMSOil & GasPiezoelectric Devices Synthetic Jet Inkjet Printer Active Valves Micro Pump Flow Sensor SONAR Hydrophone Speaker Microphone Hearing Aid RF MEMS Switch SAW Filter BAW Filter Tunable Cavity Filter Linear and Rotary Motors Position Controller Accelerometer Gyroscope Load Cell Pressure Sensor Energy HarvesterActuators and SensorsRF MEMSFlow ControlAcoustic DevicesPiezoelectric EffectVoltageDisplacementForceVoltageInv erse effectDirect effectCoupled Constitutive EquationsEeSDEeScTSTE T= stress;S= strainE= electric fieldD= electric displacementcE= elasticity matrix (rank 4)

– Find resonance frequencies and mode shapes – Include damping to find Q-factor • Frequency Domain – Frequency response analysis – Include damping – Include phase difference between loads • Linear Buckling – Obtain critical buckling load

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