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Gryphon M^3 system: integration of MEMS for flight control

Huang, A. and Folk, C. and Ho, C.-M. and Liu, Z. and Chu, W. W. and Xu, Y. and Tai, Y.-C. (2001) Gryphon M^3 system: integration of MEMS for flight control. In: MEMS Components and Applications for Industry, Automobiles, Aerospace, and Communication. Proceedings of SPIE. No.4559. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 85-94. ISBN 9780819442871.

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By using distributed arrays of micro-actuators as effectors, micro-sensors to detect the optimal actuation location, and microelectronics to provide close loop feedback decisions, a low power control system has been developed for controlling a UAV. Implementing the Microsensors, Microactuators, and Microelectronics leads to what is known as a M^3 (M-cubic) system. This project involves demonstrating the concept of using small actuators (approximately micron-millimeter scale) to provide large control forces for a large-scale system (approximately meter scale) through natural flow amplification phenomenon. This is theorized by using fluid separation phenomenon, vortex evolution, and vortex symmetry on a delta wing aircraft. By using MEMS actuators to control leading edge vortex separation and growth, a desired aerodynamic force can be produced about the aircraft for flight control. Consequently, a MEMS shear stress sensor array was developed for detecting the leading edge separation line where leading edge vortex flow separation occurs. By knowing the leading edge separation line, a closely coupled micro actuation from the effectors can cause the required separation that leads to vortex control. A robust and flexible balloon type actuator was developed using pneumatic pressure as the actuation force. Recently, efforts have started to address the most elusive problem of amplified distributed control (ADC) through data mining algorithms. Preliminary data mining results are promising and this part of the research is ongoing. All wind tunnel data used the baseline 56.5 degree(s) sweepback delta wing with root chord of 31.75 cm.

Item Type:Book Section
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URLURL TypeDescription
Liu, Z.0000-0002-6313-823X
Tai, Y.-C.0000-0001-8529-106X
Alternate Title:Gryphon M3 system: integration of MEMS for flight control
Additional Information:© 2001 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors would like to thank the Defense Advanced Research Projects Agency (DARPA), the NASA DRYDEN Research Flight Center, and National Science Foundation (NSF) for the support of the projects. The authors would also like to thank numerous previous graduate students and other personnel involved in this project, specially noted is G.B. Lee who was the primary graduate student of the first phase of this project.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
NASA Dryden Flight Research CenterUNSPECIFIED
Subject Keywords:MEMS, M^3 system, vortex flow, amplified distributed control (ADC), data mining
Series Name:Proceedings of SPIE
Issue or Number:4559
Record Number:CaltechAUTHORS:20181213-143630136
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Official Citation:Adam Huang, Chris Folk, Chih-Ming Ho, Z. Liu, Wesley W. Chu, Yong Xu, Yu-Chong Tai, "Gryphon M3 system: integration of MEMS for flight control," Proc. SPIE 4559, MEMS Components and Applications for Industry, Automobiles, Aerospace, and Communication, (1 October 2001); doi: 10.1117/12.443022
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91788
Deposited By: George Porter
Deposited On:19 Dec 2018 23:44
Last Modified:16 Nov 2021 03:44

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