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Application of H~∞ estimation and oblique projections for experimental damage identification by SP2E

机译：H型估计和倾斜预测对SP2E实验损伤识别的应用

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In this contribution experimental damage localization of mechanical systems based on H∞ estimation, an introduced difference process and state projection estimation error (SP2E) is studied. Because real structural excitations are presumed to be unknown, a general input is applied therein, which allows synchronization and normalization. Furthermore, state projections are introduced to enhance damage identification. Based on these theoretical results, SP2E is experimentally used to localize stiffness degradations and mass alterations in a laboratory set-up. Here, the usage of projection techniques for damage identification was proven. By analysing several different structural alteration positions and extents, an experimental sensitivity study has been conducted, which confirmed the applicability of SP2E for damage localization.
机译：在该贡献基于H∞估计的机械系统的实验损伤，研究了引入的差处理和状态投影估计误差（SP2E）。由于假定真实的结构激发未知，因此在其中应用了一般输入，这允许同步和归一化。此外，引入了状态投影以增强损伤识别。基于这些理论结果，SP2E实验地用于将实验室设置中的刚度降解和质量改变定位。在这里，证明了对损坏识别的投影技术的使用被证明是危害识别的。通过分析几种不同的结构改变位置和范围，已经进行了实验敏感性研究，证实了SP2E对损伤定位的适用性。

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