期刊
SMART MATERIALS AND STRUCTURES
卷 23, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0964-1726/23/12/125023
关键词
morphing wingtip; active honeycomb; inflatable structures; modelling; hysteresis
资金
- National Natural Science Foundation of China [11225211, 11272106]
- Chinese Scholarship Council (CSC) at the University of Bristol
- European Commission [FP7-AAT-2012-RTD-L0-341509]
This paper describes a new concept of an active honeycomb structure for morphing wingtip applications based on tubular inflatable systems and an auxetic cellular structure. A work-energy model to predict the output honeycomb displacement versus input pressure is developed together with a finite element formulation, and the results are compared with the data obtained from a small-scale example of an active honeycomb. An analysis of the hysteresis associated with multiple cyclic loading is also provided, and design considerations for a larger-scale wingtip demonstrator are made.
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