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Articles 61 - 69 of 69
Full-Text Articles in Acoustics, Dynamics, and Controls
Human Powered Vehicle Team Challenge, Sydney Nedlik, Spencer Brodie, Maria Griffin, William Schell, Ryan Serraglio
Human Powered Vehicle Team Challenge, Sydney Nedlik, Spencer Brodie, Maria Griffin, William Schell, Ryan Serraglio
Williams Honors College, Honors Research Projects
Design and build a Human Powered Vehicle in a team of five. Compete at the ASME HPVC competition in March of 2022. Re-establish the Human Powered Vehicle Team at the University of Akron.
Laser-Assisted Sound Source Localization Inside A Solid Enclosure, Antonio Figueroa Mombela
Laser-Assisted Sound Source Localization Inside A Solid Enclosure, Antonio Figueroa Mombela
Wayne State University Dissertations
Sound source localization is typically conducted in open space so that the line of sight is not blocked among individual sensors. This research presents a new technology that enables one to see acoustically through a solid Plexiglass enclosure to locate a sound source stationed inside at some arbitrarily selected locations. By using SODAR technology, non-invasive laser-assisted microphones, analog, and digital signal processing (band-pass filtering, fast Fourier transform algorithm, cross-correlations, and triangulations) satisfactory sound source localization results were obtained. In this project, the enclosure walls were flat; only the azimuth angle of a sound source could be determined. To obtain the …
Grinding And Super-Finishing Test Machine Project, Michael Simon
Grinding And Super-Finishing Test Machine Project, Michael Simon
Williams Honors College, Honors Research Projects
A research project in The University of Akron to study grinding and super-finishing of silicon nitride ceramic was initiated by Dr. Siamak Farhad and sponsored by the Timken Company, with the assistance of undergraduate students Michael Simon, Ryan Hosso and Mathew Rozmajzl. The study required analysis of forces and scratches generated during grinding processes of silicon nitride samples. A testing assembly was designed and constructed to record the forces generated during grinding and super-finishing of silicon nitride samples in a computer-numerical-control machine. Silicon nitride samples were subjected to desired grinding and super-finishing operations and all forces generated during the process …
Multi-Platform Suppressor Design Project, Wyatt A. Openshaw, Alex B. Chiples
Multi-Platform Suppressor Design Project, Wyatt A. Openshaw, Alex B. Chiples
Williams Honors College, Honors Research Projects
The Multi-Platform suppressor is a design that is meant to bridge the gap in the suppressor market by being compatible and configurable with both rifle and pistol platform firearms. In the specific design and prototype referenced in this report, the Multi-Platform suppressor was designed to be used with 9mm pistol and 5.56x45mm rifle calibers with safety, effectiveness, and practicality in mind. To achieve this, the suppressor is configurable, utilizing a Nielsen device in the pistol configuration and a solid mount adapter that replaces the Nielson device piston and spring while in the rifle configuration. This allows the suppressor to retain …
Innovated Manual Wheelchair Propulsion, Jacob Eveleth, Abigail Steineman, James Murray, Garrett Best
Innovated Manual Wheelchair Propulsion, Jacob Eveleth, Abigail Steineman, James Murray, Garrett Best
Williams Honors College, Honors Research Projects
The goal of this project is to provide a manual wheelchair propulsion system that provides an easier way of moving the chair for the user. Our already-defined set of constraints and goals provides a clear end-goal for our group in accomplishing this task. We plan to have a 3D CAD model of the design by the end of the Spring 2022 semester. The first half of the Fall 2022 semester will be dedicated to developing a plan for prototyping, and the second half of the semester we plan to have the prototype created for use. So far, we have utilized …
Development And Validation Of A Force Measuring Device For A Laboratory Wave Tank, Jacob K. Colling
Development And Validation Of A Force Measuring Device For A Laboratory Wave Tank, Jacob K. Colling
Dissertations, Master's Theses and Master's Reports
The ability to predict the hydrodynamic force exerted on floating bodies plays a critical role in creating more effective control strategies for wave energy converters (WECs). Developing a test apparatus capable of directly measuring the forces exerted on a floating body subjected to a wavefield provides the means to validate theoretical prediction methods with experimental results and to develop data-based prediction methods for hydrodynamic forces. This report will discuss the development and validation of a device that measures the total vertical force exerted on a test artifact. The device requirements and design are discussed to examine the factors taken into …
On-Ice Detection, Classification, Localization And Tracking Of Anthropogenic Acoustic Sources With Machine Learning, Steven J. Whitaker
On-Ice Detection, Classification, Localization And Tracking Of Anthropogenic Acoustic Sources With Machine Learning, Steven J. Whitaker
Dissertations, Master's Theses and Master's Reports
Arctic acoustics have been of concern in recent years for the US navy. First-year ice is now the prevalent factor in ice coverage in the Arctic, which changes the previously understood acoustic properties. Due to the ice melting each year, anthropogenic sources in the Arctic region are more common: military exercises, shipping, and tourism. For the navy, it is of interest to detect, classify, localize, and track these sources to have situational awareness of these surroundings. Because the sources are on-water or on-ice, acoustic radiation propagates at a longer distance and so acoustics are the method by which the sources …
Characterization Of Hydraulic Flow Noise Induced By Spool Valves, Carter A. Paprocki
Characterization Of Hydraulic Flow Noise Induced By Spool Valves, Carter A. Paprocki
Dissertations, Master's Theses and Master's Reports
The purpose of the hydraulic flow noise research was to investigate the relationship between operational valve parameters and flow noise generation. The primary consideration was correlating the flow noise generated by the valve with the distinct valve open positions. This data would allow future valve designs to account for features that cause increased flow noise and move those features away from high flow valve displacements. By implementing this, companies would be able to design quieter hydraulic systems that will not expose operators to the current levels of sound found on machines. The experiments were conducted using two valves with different …
Precise Landing Of Vtol Uavs Using A Tether, Jeremy W. Rathjen
Precise Landing Of Vtol Uavs Using A Tether, Jeremy W. Rathjen
Graduate Theses, Dissertations, and Problem Reports (ETD)
Unmanned Aerial Vehicles (UAVs), also known as drones, are often considered the solution to complex robotics problems. The significant freedom to explore an environment is a major reason why UAVs are a popular choice for automated solutions. UAVs, however, have a very limited flight time due to the low capacity and weight ratio of current batteries. One way to extend the vehicles' flight time is to use a tether to provide power from external batteries, generators on the ground, or another vehicle. Attaching a tether to a vehicle may constrain its navigation but it may also create some opportunities for …