This paper presents the design, manufacturing and experimental assessment of a morphing element consisting of a composite corrugated panel that hosts a diffused actuation system based on Shape Memory Alloy (SMA) actuators. The characterisation of the SMA actuators is reported and the system performance is predicted through an analytical model and finite element analyses. Two versions of the actuated system are proposed, with different methods for the physical integration of the SMA wires into the composite part. Manufacturing and testing of specimens with different wire densities are reported. Correlation with experiments validates the analytical and numerical approaches adopted for the design and analyses. The results confirm the potential of the concept proposed for developing corrugated panels that can be contracted in a predefined direction by a load-bearing actuation system, but still retain high stiffness and strength properties in other directions.

中文翻译：

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用于变形结构的驱动波纹层压板的开发

本文介绍了由复合波纹板组成的变形元件的设计、制造和实验评估，该复合波纹板承载基于形状记忆合金 (SMA) 致动器的扩散致动系统。报告了 SMA 执行器的特性，并通过分析模型和有限元分析预测了系统性能。提出了两个版本的驱动系统，用不同的方法将 SMA 线物理集成到复合部件中。报告了具有不同线密度的样品的制造和测试。与实验的相关性验证了设计和分析所采用的分析和数值方法。