Active and Passive Smart Structures and Integrated Systems XVII 2023
DOI: 10.1117/12.2658565
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Piezoelectric ring-stack actuator design for high-frequency valve

Abstract: This paper presents a fundamental non-contact valve design developed by integrating a ring-stack piezoelectric actuator into a converging nozzle design to impart harmonic flow. The paper also outlines the governing equations as well as limiting factors that constrain the design and operating performance. The converging nozzle design achieves choked flow at the valve exit when the nozzle is fully open. Valve actuation centers around piezoelectric ring stacks: the piezoelectric stack is fixed within the valve on… Show more

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