Application of Multifunctional Mechanical Metamaterials
Application of Multifunctional Mechanical Metamaterials
复制标题
多功能机械超材料的应用
DOI：
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发表时间：
2019
影响因子：
3.6
通讯作者：
D. Peitsch
中科院分区：
文献类型：
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作者：
Ali Shanian;F. Jetté;M. Salehii;Minh Quan Pham;Megan Schaenzer;Genevieve Bourgeois;K. Bertoldi;Andrew C. Gross;Farhad Javid;D. Backman;S. Yandt;M. Gerendás;Tobias Meis;K. Knobloch;F. Bake;D. Peitsch
机械超材料由于其能够获得天然材料之外的材料特性而引起了人们极大的兴趣。许多有前途的机械超材料已经设计，制造和测试，然而，这些超材料还没有受到严格的要求，需要证明他们在苛刻的工业应用，需要多功能的行为。本文详细介绍了一种拉胀多功能超材料，该材料经过优化，性能优于航天、运输、能源和核工业中常用的冷却系统的传统设计。为证明这种材料可用于燃气涡轮机而进行的实验测试表明，与传统设计相比，超材料将结构寿命提高了几个数量级，同时还提供了更有效的冷却并保持了类似的声学阻尼特性。这种超材料为下一代组件的实现提供了灵活而经济的解决方案。
Mechanical metamaterials have attracted great interest due their ability to attain material properties outside the bounds of those found in natural materials. Many promising mechanical metamaterials have been designed, fabricated, and tested, however, these metamaterials have not been subjected to the rigorous requirements needed to certify their use in demanding industrial applications that require multifunctional behavior. This paper details an auxetic multifunctional metamaterial that has been optimized to outperform conventional designs for cooling systems commonly used in the space, the transportation, the energy and the nuclear industry. Experimental tests performed to certify this material for use in gas turbines have shown that in comparison to conventional designs, the metamaterial increases structural life by orders of magnitude while also providing more efficient cooling and maintaining similar acoustic damping characteristics. This metamaterial offers an agile and economical solution for the realization of next generation components.