Mr. Vishal Shinde Profile

Vishal Shinde

at Univ of Cincinnati

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Author

Publications (3)

Proceedings Article | 15 March 2006 Paper

Real-time health monitoring of a thin composite beam using a passive structural neural system

G. Kirikera, V. Shinde, M. Schulz, A. Ghoshal, M. Sundaresan, J. Lee

Proceedings Volume 6177, 61770H (2006) https://doi.org/10.1117/12.658674

KEYWORDS: Sensors, Composites, Neurons, Data acquisition, Analog electronics, Wave propagation, Diagnostics, Structural health monitoring, Signal processing, Prototyping

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Proceedings Article | 16 May 2005 Paper

Testing the analog processor of a structural neural system

G. Kirikera, I. Kang, J. Lee, V. Shinde, B. Westheider, Vesselin Shanov, M. Schulz, M. Sundaresan, A. Ghoshal

Proceedings Volume 5763, (2005) https://doi.org/10.1117/12.600243

KEYWORDS: Sensors, Neurons, Composites, Data acquisition, Analog electronics, Carbon nanotubes, Acoustic emission, Signal processing, MATLAB, Wave propagation

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Proceedings Article | 27 July 2004 Paper

Mimicking the biological neural system using electronic logic circuits

Goutham Kirikera, Vishal Shinde, Inpil Kang, Mark Schulz, Vesselin Shanov, Saurabh Datta, Doug Hurd, Bo Westheider, Mannur Sundaresan, Anindya Ghoshal

Proceedings Volume 5384, (2004) https://doi.org/10.1117/12.540174

KEYWORDS: Sensors, Aluminum, Acoustic emission, Ferroelectric materials, Analog electronics, Data acquisition, Neurons, Electronic circuits, Composites, Structural health monitoring

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Detecting and locating cracks in structural components and joints that have high feature densities is a challenging problem in the field of Structural Health Monitoring. There have been advances in piezoelectric sensors, actuators, wave propagation, MEMS, and optical fiber sensors. However, few sensor-signal processing techniques have been applied to the monitoring of joints and complex structural geometries. This is in part because maintaining and analyzing a large amount of data obtained from a large number of sensors that may be needed to monitor joints for cracks is difficult. Reliable low cost assessment of the health of structures is crucial to maintain operational availability and productivity, reduce maintenance cost, and prevent catastrophic failure of large structures such as wind turbines, aircraft, and civil infrastructure. Recently, there have also been advances in development of simple passive techniques for health monitoring including a technique based on mimicking the biological neural system using electronic logic circuits. This technique aids in reducing the required number of data acquisition channels by a factor of ten or more and is able to predict the location of a crack within a rectangular grid or within an arbitrarily arranged network of continuous sensors or neurons. The current paper shows results obtained by implementing this method on an aluminum plate and joint. The plates were tested using simulated acoustic emissions and also loading via an MTS machine. The testing indicates that the neural system can monitor complex joints and detect acoustic emissions due to propagating cracks. High sensitivity of the neural system is needed, and further sensor development and testing on different types of joints is required. Also indicated is that sensor geometry, sensor location, signal filtering, and logic parameters of the neural system will be specific to the particular type of joint (material, thickness, geometry) being monitored. Also, a novel piezoresistive carbon nanotube nerve crack sensor is presented that can become a neuron and respond to local crack growth.

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