基于电阻层析成像的结构健康监测非平面传感蒙皮
Non-planar sensing skins for structural health monitoring based on electrical resistance tomography
摘要：
基于电阻层析成像（ERT）的分布式表面感测系统或感测皮肤提供用于结构健康监测的替代感测技术，从而提供用于例如损伤、应变和温度的分布式感测的能力。然而，目前，用于感测皮肤的计算技术仅限于平面表面。在本文中，为了克服这一限制，我们推广基于ERT的表面传感覆盖任意形状的三维结构的非平面表面，我们构建了一个框架，我们重新制定的图像重建问题的ERT使用黎曼几何的技术，并解决由此产生的问题数值。我们测试这个框架中的一系列数值和实验研究。结果表明，所提出的公式的可行性和基于ERT的传感皮肤的非平面几何形状的适用性。
英文摘要：
Electrical resistance tomography (ERT) -based distributed surface sensing systems, or sensing skins, offer alternative sensing techniques for structural health monitoring, providing capabilities for distributed sensing of, for example, damage, strain and temperature. Currently, however, the computational techniques utilized for sensing skins are limited to planar surfaces. In this paper, to overcome this limitation, we generalize the ERT-based surface sensing to non-planar surfaces covering arbitrarily shaped three-dimensional structures; We construct a framework in which we reformulate the image reconstruction problem of ERT using techniques of Riemannian geometry, and solve the resulting problem numerically. We test this framework in series of numerical and experimental studies. The results demonstrate that the feasibility of the proposed formulation and the applicability of ERT-based sensing skins for non-planar geometries.
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