Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Structure health monitoring"”.
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Early Damage State Criterion from a Fault-Seeded Helicopter Gear Using Acoustic Emission and Neural Networks
… Aeronautical University</a> (ERAU) Structure Health Monitoring (SHM) and Nondestructive Evaluation (NDE) Laboratory. Energy, duration, amplitude, and average frequency of the AE signals were input into the Kohonen Self-Organizing Map (KSOM) artificial neural network (ANN) function in …
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High Fidelity Localization of Energy Autonomous mmIDS for Future Cyber-physical Systems
… presenting the first every off-axis structural health monitoring fully-passive sensor for local strain monitoring for both adhered or embedded form-factors. Along with the design and characterization of the wireless strain sensor, a multi-tag interrogation framework is presented for future …
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Energy and Spectral Efficient Wireless Communications
… as wireless sensor network (WSN) designed for structure health monitoring (SHM), medium access control (MAC) for multi-user systems, and cooperative spectrum sensing in cognitive radio systems.</p> <p>First, to improve the energy efficiency in SHM WSN, a new ultra low power (ULP) WSN is …
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Ultrasound Wave Patterning for Spatiotemporal Control of Acoustic Power Transfer: Pathways from Transmission to Reception
… waves for tasks like energy harvesting and structure health monitoring. Finally, the research takes a close look at how acoustic waves behave in soft, tissue-like materials—laying important groundwork for ultrasound haptics, a technology that lets people "feel" virtual objects without …
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Two Innovative Applications Combining Fiber Optics and High Power Pulsed Laser: Active Ultrasonic Based Structural Health Monitoring and Guided Laser Micromachining
… Fiber Optic Sensing Network for Structural Health Monitoring in Harsh Environments", which uses the fiber delivered pulse laser for acoustic generation. The second research topic is "Fiber Optics Guided Laser Micromachining", which uses the fiber delivered pulse laser for material ablation. …
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Dynamic behaviour of curved cable-stayed bridges
… the bridge and roof construction. However, such structures are typically showed to several special geometric shapes, which lead to a different dynamic ability. Therefore, in order to verify the dynamic performance of the structure, it is necessary to investigate the effects on dynamic behaviour …
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A Quasi-distributed Sensing Network Based on Wavelength-Scanning Time-division Multiplexed Fiber Bragg Gratings
Structural health monitoring (SHM) has become a strong national interest because of the need of reliable and accurate damage detection methods for aerospace, civil and mechanical engineering infrastructure. Health monitoring of these structures usually requires the sensors to have such features as …
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Intrinsic Fabry-Perot Interferometric Fiber Sensor Based on Ultra-Short Bragg Gratings for Quasi-Distributed Strain and Temperature Measurements
The health monitoring of smart structures in civil engineering is becoming more and more important as in-situ structural monitoring would greatly reduce structure life-cycle costs and improve reliability. The distributed strain and temperature sensing is highly desired in large structures where …