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Experimental characterization of simultaneous gust alleviation and energy harvesting for multifunctional wing spars

yuechengyu 添加于 2016/5/15 19:12:50  468次阅读 | 0次推荐 | 9个评论

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.

作 者:Ya Wang, Daniel J. Inman
期刊名称: Active and Passive Smart Structures and Integrated Systems
期卷页: 28 March 2012 第8341卷 第期 页
学科领域:信息科学 » 自动化 » 认知科学及智能信息处理
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原文链接:http://spie.org/Publications/Proceedings/Paper/10.1117/12.926800
DOI: 10.1117/12.926800
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