27 March 2012 Experimental characterization of simultaneous gust alleviation and energy harvesting for multifunctional wing spars
Author Affiliations +
Abstract
This paper details experimental characterization of an autonomous gust alleviation system building upon recent advances in harvester, sensor and actuator technology that have resulted in the possibility of thin, ultra-light weight multilayered wing spars. This multifunctional spar considers an autonomous gust alleviation system for small UAV powered by the harvested energy from ambient vibration during their normal flight conditions. Experimental characterization is performed on cantilever wing spars with micro-fiber composite transducers controlled by reduced energy controllers. Energy harvesting abilities of monolithic and micro fiber composite transducers are also compared for the multifunctional wing spar. Normal flight vibration and wind gust signals are simulated using Simulink and Control desk and then generated for experimental validation analysis for gust alleviation. Considering an aluminum baseline multifunctional wing spar, a reduction of 11dB and 7dB is obtained respectively for the first and the second mode. Power evaluations associated with various electronic components are also presented. This work demonstrates the use of reduced energy control laws for solving gust alleviation problems in small UAV, provides the experimental verification details, and focuses on applications to autonomous light-weight aerospace systems.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ya Wang, Ya Wang, Daniel J. Inman, Daniel J. Inman, "Experimental characterization of simultaneous gust alleviation and energy harvesting for multifunctional wing spars", Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 834114 (27 March 2012); doi: 10.1117/12.926800; https://doi.org/10.1117/12.926800
PROCEEDINGS
11 PAGES


SHARE
Back to Top