Connor Bayliss Engineering Portfolio.pdf - Connor

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1 Engineering Design Portfolio Connor Bayliss Senior Capstone Design: Peltier Dehumidifier Module pg. 2-3 The culmination of my undergraduate education, this project demonstrates my problem solving ability, incorporating a wide range of engineering disciplines from electronic controls to 3D printing to thermodynamics. Peltier Monitor with LabVIEW and Arduino pg. 4 A corollary to my Capstone Design, this multiplexing circuit and LabVIEW console monitors and displays readings from 20 temperature sensors, requiring minimal IO connections to a microcontroller. Thrust Vectoring Gimbal pg. 5 This CAD project for my feedback controls class demonstrates my grasp of parametric modeling techniques as well as FEA in Autodesk Inventor. 1 2 Senior Capstone Design: Peltier Dehumidifier Module My Role: sole designer and builder on a team of 5 assigned to a design task for Senior Capstone class. Task: Design and prototype a portable alternative to existing oxygen and climate-controlled cages for small animals in respiratory distress. Solution: working with veterinarians at the UGA Animal Hospital, my team decided to develop a standalone module that could be connected with air ducts to the airtight cages already at the hospital. Early brainstorming identified dehumidification and I developed the initial concept in AutoCAD to reheat the cooled, temperature control as the most significant design challenges. dehumidified air using a system of electronically controlled dampers. Peltier thermoelectric cooling was chosen as a means to condense moisture and control conditioned air temperature. 2 3 Senior Capstone Design: Peltier Dehumidifier Module (continued) I taught myself AutoDesk Inventor to produce a more polished and manufacturable design incorporating available OEM parts: CFD analysis in ANSYS verified the use of baffles in the drain pan to restrict airflow to the heatsink while allowing condensed moisture to drop down and drain off. FEA simulations in Inventor proved the structural integrity of the plastic casing as well as the necessary The prototype was 3D printed and clamping force on the Peltier modules to ensure proper assembled for performance testing heat conduction. and controls optimization. 3 4 Peltier Monitor with LabVIEW and Arduino My Role: individual project for Sensors and Transducers class. Task: design a measurement application incorporating multiple sensors, calibration functions, and an element of innovation. Solution: develop a system for monitoring temperatures of Peltier modules in my Capstone project (see previous) to prevent module overheating and analyze system thermal performance. I designed a circuit using multiplexer ICs to read temperatures from 20 individual thermistors, requiring only 3 analog input pins on an Arduino microcontroller. I used LabVIEW to interface with the microcontroller to acquire, process, and display the readings from the temperature sensors. 4 5 Thrust Vectoring Gimbal My Role: gimbal mechanism designer on a three-person team for Feedback Controls class. Task: implement a physics-based PID controller with at least 2 degrees of freedom. Solution: my group build a model rocket with a thrust-vectoring gimbal controlled by an Arduino Microcontroller. I designed the gimbal in AutoDesk Inventor to be 3D-printed in ABS plastic. I analyzed the structural integrity of the design using FEA and provided dynamic simulations for the presentation of the project. The resulting flight was beautifully catastrophic! Slow motion footage shows effective course correction quickly followed by mechanical failure of the gimbal—we modified my original design for weigh reduction, and the resulting increase in stress locked the thrust in an undesirable vector. 5