Open Access. Powered by Scholars. Published by Universities.®
University of Nebraska - Lincoln
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
- Discipline
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Parametric Modeling Of Biomimetic Sharkskin For Wire Edm For Drag Reduction And Hydrophobicity, Joel Maxwell
Parametric Modeling Of Biomimetic Sharkskin For Wire Edm For Drag Reduction And Hydrophobicity, Joel Maxwell
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
This research sets out to demonstrate the viability of parametric modeling for biomimetic sharkskin in the effort to reduce drag and create a self-cleaning surface. Multiple designs were created to be machined by Wire EDM on stainless steel and titanium and were comparatively tested. Limitations of current manufacturing processes to economically produce naturally occurring structures such as sharkskin, emphasize the need to be able to calculate the most accurate design for a given manufacturing process. By designing a simplified but parametrically consistent model compared to an accurately depicted 3D model of sharkskin, the textured samples produced can be further tested …
Design, Testing And Evaluation Of Robotic Mechanisms And Systems For Environmental Monitoring And Interaction, James K. Higgins
Design, Testing And Evaluation Of Robotic Mechanisms And Systems For Environmental Monitoring And Interaction, James K. Higgins
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
Unmanned Aerial Vehicles (UAVs) have significantly lowered the cost of remote aerial data collection. The next generation of UAVs, however, will transform the way that scientists and practitioners interact with the environment. In this thesis, we address the challenges of flying low over water to collect water samples and temperature data. We also develop a system that allows UAVs to ignite prescribed fires. Specifically, this thesis contributes a new peristaltic pump designed for use on a UAV for collecting water samples from up to 3m depth and capable of pumping over 6m above the water. Next, temperature sensors and their …