Active inflatable auxetic honeycomb structural concept for morphing wingtips

作者：Sun Jian^*; Gao Hongliang; Scarpa Fabrizio; Lira Cristian; Liu Yanju; Leng Jinsong

来源：Smart Materials and Structures, 2014, 23(12): 125023.

DOI：10.1088/0964-1726/23/12/125023

• morphing wingtip
• active honeycomb
• inflatable structures
• modelling
• hysteresis

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.

• 出版日期2014-12
• 单位哈尔滨工业大学