Michael Tree and Dr. Scott Thomson, Department of Mechanical Engineering Introduction Operation of existing micro air vehicles (small, unmanned aircraft, with a maximum size of 6 inches or less, also known as MAVs) is difficult in urban areas. Most MAVs use a fixed-wing design that is unsuitable for high maneuverability, thus limiting their potential usefulness. […]
High Resolution Characterization of Polycrystalline Triple Junctions
Samikshya Subedi and Dr. David Fullwood, Department of Mechanical Engineering Purpose of the Study The purpose of this study was to understand and predict the role of the triple junction on crack initiation in polycrystals. I intended to study dislocation density fields and local elastic strain around the triple junction area in a metal and […]
Using EBSD images to Determine 3D Crystal Structure
Caroline Sorensen and Dr. David Fullwood, Department of Mechanical Engineering The research I have completed over the past year has been very successful. The results will soon (i.e. in the next week or two) be submitted for publication, most likely to the journal “Metallurgical and Material Transactions A.” Preliminary findings from this research were also […]
Optimizing Redundant Wrist and Forearm Rotations
Jenny Pate and Dr. Steven Charles, Department of Mechanical Engineering Introduction Many Americans struggle with wrist injuries that severely impact their ability to work (typing, writing, etc.) and perform basic everyday functions (eating, holding, etc). These injuries often result from repeatedly forcing the wrist to move in unnatural ways. To properly combat these challenges and […]
Spinning Objects in a Shallow Bath: Eggs in Milk
Kenneth Langley and Dr. Tadd Truscott, Department of Mechanical Engineering Introduction If an egg spinning on a counter-top passes through a shallow pool of milk, a thin film of milk will be drawn up the sides of the egg and sprayed on the counter-top. This phenomenon is not limited to eggs or milk. In fact, […]
Rebound Suppression of a Partially Filled Sphere
Robert Klaus and Dr. Tadd Truscott, Department of Mechanical Engineering Sloshing is a very common phenomenon that we encounter everyday. Anytime that a liquid is enclosed within a moving container there exists the potential for sloshing. In some cases, such as trucks & ships, the sloshing of the fluid can produce undesired vehicle motion and […]
Mathematical Dynamics of Fluid Motion Inside of a Spherical Boundary
Taylor Killian and Dr. Tadd Truscott, Department of Mechanical Engineering Goal The purpose of the proposed research was to mathematically define and model the flow of fluid within a partially filled sphere. The goal of this modeling was to aid the study of the effects an enclosed fluid had on its boundary. We desired to […]
Capillary Action in a Rectangular Micro-Channel
Jeffrey Hendricks and Dr. Tadd Truscott, Department of Mechanical Engineering The study of fluid flow on a microscale has become of increasing interest in recent years. We have studied the effects of capillary action in a micro-channel with a rectangular cross-section having a large width to height ratio. In general, capillary action allows fluid to […]
Stand-Alone Lance for Nanoinjection of DNA
Mark Fernelius and Dr. Larry Howell, Department of Mechanical Engineering Technologies for injecting DNA into egg cells have greatly facilitated genetic research. Microinjection is a current standard for this purpose. It uses a hollow glass needle to inject a solution containing DNA into cells. Although widely used, microinjection has several significant challenges. First, the DNA […]
An Improved Estimation of Passive Wrist Stiffness Using Various Techniques
Will Drake and Dr. Steven Charles, Department of Mechanical Engineering The wrist plays a vital yet frequently overlooked role in positioning and supporting the hand during activities of daily living. Particularly during low-level activities (such as typing), passive joint stiffness dominates wrist dynamics and constitutes the main obstacle to motion. In spite of its importance, […]