3.3 KiB
Purpose
The Texas A&M Sounding Rocketry Team designs, builds, and flies its own hybrid rocket. As part of its design cycle, static cold flows and static engine tests are performed to chacterize the engine's oxidizer tank, fluid system, and combustion process.
Overall System Design
During a static engine test, we load solid HTPB fuel into the combustion chamber. As part of the test procedure, we load nitrous oxide into the run tank via the fluid panel. We then ignite the starter, and open the ball valve actuation system (BVAS) to begin our combustion cycle.
Concept of Operation
Control Box
The control box is responsible for taking in operator inputs and sending them to the actuator box over CAN. The control box also receives feedback from the actuator box and updates the assortment of LEDs and the LCD screen on the indicator panel.
Logic Diagram
Power Diagram
Actuator Box
The actuator box is responsible for actuating valves on the oxidizer fluid panel, main throttle valve on the engine, and igniting the starter system. During a test when avionics is deployed, the avionics stack handles engine control while the actuator box controls ground support systems.
Logic Diagram
Power Diagram
Physical Design
Control Box
Display PCB
3D Render
PCB Design
Schematic
Main PCB
3D Render
PCB Design
Schematic
Integrated Assembly
Actuator Box
Actuator PCB
3D Render
PCB Design
Schematic
Full Schematic
Non-Latching Relay Schematic
Latching Relay Schematic
Igniter Relay Schematic
Integrated Assembly
