Lumped Element Modeling of Piezoelectric-Driven Synthetic Jet Actuators

Autor:	Ryan Holman, Toshikazu Nishida, Bruce Carroll, Louis N. Cattafesta, Mark Sheplak, Quentin Gallas
Rok vydání:	2003
Předmět:	Frequency response Engineering business.industry Distributed element model Aerospace Engineering Mechanics law.invention Vibration law Electrical network Synthetic jet Electronic engineering Acoustic impedance Actuator business Voltage
Zdroj:	AIAA Journal. 41:240-247
ISSN:	1533-385X 0001-1452
DOI:	10.2514/2.1936
Popis:	This paper presents a lumped element model of a piezoelectric-driven synthetic jet actuator. A synthetic jet, also known as a zero net mass-flux device, uses a vibrating diaphragm to generate an oscillatory flow through a small orifice or slot. In lumped element modeling (LEM), the individual components of a synthetic jet are modeled as elements of an equivalent electrical circuit using conjugate power variables. The frequency response function of the circuit is derived to obtain an expression for Q(sub out)/V(sub AC), the volume flow rate per applied voltage. The circuit is analyzed to provide physical insight into the dependence of the device behavior on geometry and material properties. Methods to estimate the model parameters are discussed, and experimental verification is presented. In addition, the model is used to estimate the performance of two prototypical synthetic jets, and the results are compared with experiment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e2002b0ea216de0fe8879c8fc30e5c7 https://doi.org/10.2514/2.1936 Zobrazit plný text záznamu