Electromechanical Recovery System

Poster Image
Event poster; details follow in description
Poster Session
B
Poster Number
07
Project Author(s)
Jessica Vinh, Amber Zepeda, Emma Levy, Leslie Baker Lyon, Abdelilah Almutawa, Dylan Nieman
Institution
Portland State University
Project Description

Recovery systems for amateur rockets typically rely on pyrotechnics to eject the rocket’s nose cone. However, pyrotechnics are not testable or reusable. Portland State Aerospace Society (PSAS) instead uses an electronic recovery system (ERS) for their launch vehicles (LV). The previous iteration of the ERS was unreliable and difficult to assemble and reset. The past year, the primary goal for our team was to design and construct a modular, resettable, lightweight electromechanical recovery system that can safely recover LV4, which will reach an estimated altitude of 100km. In order to achieve this goal, we used OpenRocket simulations to find the forces that the system needed to withstand. With those results, we decided to move forward with a three-stage system consisting of a ballute that would serve as a de-accelerator, a drogue parachute, and a main parachute. The design we decided on uses off-the-shelf ball detent pins that can handle the shock forces that get pushed by a linear actuator. Our team also decided to change the typical parachute packing procedure to spiral the parachute inside our modules. A proof-of-concept prototype was made for LV3.1, a rocket set to launch beforeLV4 that will serve as a testing bed for new designs.