Browsing by Subject "Electrical Engineering"

Now showing 1 - 4 of 4
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    Asset allocation in frequency and in 3 spatial dimensions for electronic warfare application
    (2016-04) Crespo, Jonah Greenfield; Christopher, Lauren Ann; Dos Santos, Euzeli Cipriano, Jr.; Rizkalla, Maher; Li, Lingxi; King, Brian
    This paper describes two research areas applied to Particle Swarm Optimization (PSO) in an electronic warfare asset scenario. First, a three spatial dimension solution utilizing topographical data is implemented and tested against a two dimensional solution. A three dimensional (3D) optimization increases solution space for optimization of asset location. Topography from NASA's Digital Elevation Model is also added to the solution to provide a realistic scenario. The optimization is tested for run time, average distances between receivers, average distance between receivers and paired transmitters, and transmission power. Due to load times of maps and increased iterations, the average run times were increased from 123ms to 178ms, which remains below the 1 second target for convergence speeds. The spread distance between receivers was able to increase from 86km to 89km. The distance between receiver and its paired transmitters as well as the total received power did not change signi cannily. In the second research contribution, a user input is created and placed into an unconstrained 2D active swarm. This \human in the swarm" scenario allows a user to change keep-away boundaries during optimization. The blended human and swarm solution successfully implemented human input into a running optimization with a time delay. The results of this research show that a electronic warfare solutions with real 3D topography can be simulated with minimal computational costs over two dimensional solutions and that electronic warfare solutions can successfully optimize using human input data.
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    Automated Test Cell for Compressed Gas
    (2019-04-30) Meni, Ani; Pereira, Thomas; Griffith, Emma; Goodman, David; Lin, Bill
    This report details the components, decisions, and functionality to modify a manual system designed to gather data to create equations that correlate pressure and ultrasonic dB to flow. Our modifications turn the entirely manual system into a system that will automatically gather data from each sensor and write them to an Excel file. The data collected can then be used to create the equations.
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    Mechanical and geometric considerations for the airgapless motor
    (2018-08) Wheeler, Nathan W.; Rovnyak, Steven
    The purpose of this thesis is to perform modeling from different perspectives for an airgapless motor. The airgapless motor is a proposed type of electric machine whose purpose is to replace hydraulic machines in low speed high torque applications. Because of the nature of the movement for this device, modeling of this device is atypical to the modeling done with other electric machines. This thesis will present the operating principle of the airgapless motor and take an analytical approach to modeling the torque and total energy in the device. In addition, this thesis will present the power electronics necessary to drive this device and offer recommendations to maximize the torque and minimize the torque ripple. MATLAB simulations are used to verify that the conclusion of this thesis are consistent with observations made by previous publications and prototypes.
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    Senior Design Project Report Whole House Ventilation System
    (2023-05) Rios-Jauregui, Anthony; Herrera Sandoval, Jennifer; Chaiyasit, Matt; Weissbach, Robert; Lin, William; Goodman, David
    The Whole House Ventilation System was created out of the sponsor’s need to have cleaner air within their home. The system will accommodate a Ranch-style, 2000 sq ft home located in Indianapolis. A microcontroller will be used to control the fan speed and make decisions based on sensor data. Other specifications include having the fan produce noise below 65 dB, physical controls for fan speed and power, and having an Android app to view sensor data. The four system tests we conducted verified power, sensor functionality, and Auto/Manual functionality. All four tests passed. The final system met the majority of the customer’s needs. We recommend a PCB board reprint as some holes do not have pads.