Examples of Work Blake Ostman FSAE Electric Motor

Examples of Work Blake Ostman

FSAE Electric Motor Cooling System & Test Cart Sensor. DAQ for data collection Switches for fan and pump Power Supply Flow Meter Pressure Gauges Heating Elements Reservoir Catch Can Radiator/Fan • Developed test cart to evaluate different radiators, pumps, and fans • Included pressure and temperature sensors before and after the radiator to measure pressure and temperature drop • Utilized a computer power supply to supply 12 V to both the pump and the fan(s) and 5 V to thermocouples • Lab. View and a Sensor. DAQ were used to capture data from thermocouples over time and plot the rise in temperature as the heating elements provided an approximation of the motor’s potential waste heat

Nosecone (includes forward facing hole for pitot tube) Transparent Section Carbon fiber body section containing parachutes Electronics bay and dual deploy parachute release mechanism Modular Fin Section Von Karman shaped tailcone for reduced drag Aero. NU Airframe Development Lead • Led overall design and construction of the rocket pictured • Designed transparent section to house two 360° cameras as well as a battery and GPS • Rocket was designed with a custom parachute release system that would allow for more consistent deployment of the main parachute at a certain altitude while maintaining the compact nature of having both drogue and main parachutes in the same cavity • A modular fin system allowed for both sturdier construction of fins at higher velocities and temperatures as well as easier replacement of fin geometries depending on the motor being used

Forward bulkhead (cutouts for weight saving) Aero. NU Airframe Development Lead (cont. ) O-ring to prevent excessive axial loading to acrylic section Camera support in case it unscrews itself during launch Threaded rods to bear axial load Battery Support Telemega GPS support Power switch location Aluminum aft bulkhead (solid to contain ejection charge gases) • Transparent section housed two 360° cameras and a GPS due to the carbon fiber body not being suitable for live data transmission from the GPS • Connects the nosecone with a screw on attachment to allow for maintenance of the pitot tube assembly housed within • Aft aluminum bulkhead acts as a parachute attachment point, as the rocket separates there

Pratt & Whitney PW 1100 G • Designed and evaluated sealing components in the static portion of the turbine section to prevent loss of cooling airflow Section of components I worked on • Creep life and fatigue were the limiting factors due to the large fluctuation of temperature and ΔP across the seal during a flight • Easily modifiable design spreadsheet allows for quick evaluation of changes as well as design of similar components

M 3. 5 x 0. 6 pointed machine screws Cutouts to maintain uniform wall thickness to prevent shrinkage Locating features M 3. 5 x 0. 6 threaded inserts Axon Screw Mount • Designed, prototyped, and tested a screw-on mount to prevent officer from ever losing the camera in the field • Locating features designed to aid in screw alignment through cloth and reduce stress on fabric where the screw has torn it Gate recess to prevent burrs from injection molding process • Designed to have consistent thickness and sloped edges to allow for easy injection molding • Worked closely with manufacturing team as well as external suppliers to make sure the part was satisfactory