Q6. Two strips of PZT are bonded to form a bimorph actuator shown in the figure below. The bimorph has a small mass at t

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Q6 Two Strips Of Pzt Are Bonded To Form A Bimorph Actuator Shown In The Figure Below The Bimorph Has A Small Mass At T 1 (39.42 KiB) Viewed 19 times

Q6. Two strips of PZT are bonded to form a bimorph actuator shown in the figure below. The bimorph has a small mass at the free end. ov Mass, m Supply Each actuator has the following specifications: Dimensions: length = 50 mm, width = 5 mm, thickness=0.5 mm d13 = -133x10-12 m/V, d33 = 500x10-¹² m/V PZT charge constant: PZT Young's Modulus: E = 70x10³ N/m² Available voltage source: +200 V (Assume ideal actuator characteristics.) • With no electrical connections to the bimorph, the mass vibrates freely at 63.66 Hz when disturbed. What is the value of the mass, m? • By applying a voltage to the supply as shown, the mass can be raised and lowered. Find the full range of motion available. • Find the voltage required to maintain zero deflection with the weight added. [20 Marks]