Aprender Sumergiéndote | Carlos y José | TEDxULPGC

Quick Overview

The Kármán Project team from the University of Las Palmas de Gran Canaria (ULPGC) successfully developed a human-powered submarine propelled by pedals, overcoming challenges in design, modeling, material construction, and operational safety to compete in the European and International Submarine Races.

Key Points: The Kármán Project team from ULPGC participated in the European and International Submarine Races with a human-powered, pedal-propelled submarine. The team encountered four main problems: initial design, 3D modeling and simulations, fiberglass construction, and ensuring pilot safety and maneuverability. The design process included five erroneous versions before settling on the final form, emphasizing iterative testing. They utilized biometrics, mimicking fish movement, for the propulsion system instead of a traditional propeller (which they discarded). A safety buoy mechanism was designed to automatically ascend the submarine in case of emergency. The team emphasized that the best way to learn engineering is by building something and finding solutions to real problems encountered during construction.

Context: This TEDx talk, presented by two members of the Kármán Project from the Universidad de Las Palmas de Gran Canaria (ULPGC), details their journey participating in the international human-powered submarine races. The presentation focuses on the engineering challenges they faced, starting from the initial conception of a pedal-powered underwater vehicle to overcoming specific technical hurdles in design, material science, and safety systems.

Detailed Analysis

The presentation begins with the introduction of the Kármán Project team from ULPGC, who took on the challenge of building a human-powered submarine for the European and International Submarine Races (00:13-00:17). The speaker notes that the project was unusual, involving students from Naval Technology Engineering (00:48-00:51). The core of the talk focuses on the four major problems they encountered and solved. First, the design phase required five incorrect versions before they settled on a final shape, highlighting the iterative nature of engineering (1:36-1:41). The second challenge involved modeling and simulation, where they focused on calculating forces, angles, and speeds (1:52-2:02). Crucially, they chose to mimic the movement of fish (biomimetics) for propulsion rather than using a conventional propeller, which they rejected due to issues with speed, stability, and comfort for the pilot (2:24-2:40). The third major issue was construction, involving layering fiberglass, which had to be perfect to avoid structural failure (1:57-2:03). The fourth problem was safety: they designed a buoy mechanism that automatically surfaces the submarine if the pilot is in distress or if the connection tether breaks (3:37-3:55). The speakers conclude that the best engineering education comes from confronting real-world problems during construction and finding solutions, noting that while their submarine hadn't officially touched water yet, they were one day closer to achieving their goal (4:38-4:50).