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10 March 2014 Development and test of synthetic jet actuators based on dual transducer concept
Martin Schueller, Perez Wiegel, Mathias Lipowski, Robert Schulze, Thomas Otto, Thomas Gessner
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Proceedings Volume 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014; 905902 (2014) https://doi.org/10.1117/12.2046204
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States
Abstract
Synthetic Jet Actuators (SJA) are micro fluidic devices with low power and high compactness. They are used for different applications that require a directed air flow. These kind of fluidic generators require zero mass input and produces non-zero momentum output. The classic design of such an actuator consists of a membrane located on one wall of a small cavity and an orifice that is typically on the opposite side of the membrane. In the new SJA concept a Helmholtz resonator is equipped with two transducers to increase the performance of the actuator. The piezoelectric membranes generate the volumetric flow symmetrically from both sides of the chamber. A common outlet connects them to the acoustic far field. A network model [1] was used for designing and optimizing the SJA. Based on this, a doublewall actuator (DWSJA) was developed. The simulation results show that using two transducers does not fully redouble the exit velocity [2], but it still shows major improvement in comparison to conventional SJA with single transducers.
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Martin Schueller, Perez Wiegel, Mathias Lipowski, Robert Schulze, Thomas Otto, and Thomas Gessner "Development and test of synthetic jet actuators based on dual transducer concept", Proc. SPIE 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014, 905902 (10 March 2014); https://doi.org/10.1117/12.2046204
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KEYWORDS
Actuators
Transducers
Microfluidics
Acoustics
Resonators
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