Timothy Robertson Email and Phone Number

• I have been a course assistant for Engineering Thermodynamics, Intermediate Fluid Mechanics, and Introduction to Mechanical Engineering.• I lead office hours for 6 hours a week where I help students understand course content and how it can be applied to their assignments.• I lead biweekly tutorial sessions focused on reviewing the past week's topics, and I solve exercises designed to incorporate relevant material.• I assist the professor with course logistics.

• I developed code to size a thruster given thrust, Isp, and spacecraft footprint requirements.• I selected the thruster wall material based on my thermal and structural calculations and manufacturability considerations.• I designed a cooling jacket to combat the high temperatures of the combustion gases in the thruster.• I created a CAD model of the thruster and communicated with a supplier to manufacture the design.• I performed analysis in Ansys to verify the cooling mechanism performance and my stress predictions.• I designed a thruster test stand and helped assemble a test feed system.

• I designed a warhead acceptance testing procedure (ATP) that decreases costs by 15% and increases yield by 15% using data I gathered from meetings and on-site visits with the supplier.• I created a full missile assembly in Creo using engineering drawings of the missile components.• I wrote procedures and created flowcharts for how to change supplier designs and ATPs.

• I created a modular design for a critical part in the microwave electrothermal thruster (MET) to allow for R&D testing and eased assembly.• I designed a high-temperature leak-check apparatus for R&D testing.• For each of the parts I designed, I created engineering drawings using GD&T and worked with manufacturers to procure the parts.• I laser welded, acceptance tested, leak-checked, and assembled components of an MET before helping conduct thruster performance testing.

• I developed particle-in-cell (PIC) MATLAB code for a charged particle in the presence of bothelectric and magnetic fields.• I worked with Dr. Ken Hara to develop a restart function and a time-averaged plotting functionfor code modeling low-pressure capacitively coupled plasma.• Using this code, I have investigated how particle weighting and initial macroparticle numberaffect plasma behavior, focusing near the centerline at r = 0.• I worked with Dr. Hara to coauthor a conference presentation and journal article on my research.