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Full-Text Articles in Mechanical Engineering
Impact Location In An Isotropic Plate Without Training, Prasanna Rajbhandari
Impact Location In An Isotropic Plate Without Training, Prasanna Rajbhandari
Theses and Dissertations
ABSTRACT
IMPACT LOCATION IN AN ISOTROPIC PLATE WITHOUT TRAINING
by
Prasanna Rajbhandari
The University of Wisconsin-Milwaukee, 2016
Under the Supervision of Professor Dr. Nathan Salowitz
Unexpected impacts are major concerns in the aerospace industry that can cause difficulty to detect damage. Techniques have been developed to determine the impact location using piezoelectric sensors. Most existing systems require training data to develop a database of known structural responses and properties that can be referenced for location of impacts. This data collection is time consuming and if an impact and corresponding sensor data is outside the range of training data, the system …
Numerical And Experimental Studies Of Atomic Layer Deposition For Sustainability Improvement, Dongqing Pan
Numerical And Experimental Studies Of Atomic Layer Deposition For Sustainability Improvement, Dongqing Pan
Theses and Dissertations
Atomic layer deposition (ALD) is an approved nano-scale thin films fabrication technique with remarkable uniformity and conformity in surface geometry. This dissertation presents numerical and experimental studies to investigate the transient physical and chemical ALD process in order to improve its sustainability performance in terms of throughput, wastes and emissions.
To be specific, in this dissertation, the transient process of ALD is studied extensively through both numerical and experimental approaches to find the influential factors on the two main critical sustainability issues: low throughput and negative environmental impacts. Different numerical schemes are developed and studied for ALD process simulations. In …