MECHANICS
OBJECTIVES
The Mechanical area focuses on designing and building the physical structure of the AUV, ensuring resistance to hydrostatic pressure, hydrodynamic stability and ease of maintenance. It also seeks to optimize mass distribution and component positioning to ensure the balance of the system in operation.
CONTRIBUTIONS
The Mechanical team designs the hull and internal compartments with lightweight, durable materials, ensuring the integrity of the AUV at great depths. It contributes to hydrodynamic efficiency with a design that reduces drag and improves maneuverability. It also develops supports, sealing systems and sensor housings, in addition to physically integrating the electronics and propulsion modules, respecting space and access limitations.
CHALLENGES
The main challenges include high-pressure resistance, which requires precise structural calculations and rigorous sealing tests. Internal space restrictions require compact solutions that do not compromise maintenance or balancing. Buoyancy and stability control require fine adjustments in the design and mass distribution to ensure adequate performance under different operating conditions.
STRUCTURE MODELING
The AUV structure is developed using 3D CAD software, with a focus on mechanical strength and spatial efficiency. Critical stress points, sealing zones and access areas for maintenance are considered. Mass distribution is planned to ensure hydrostatic stability and ease of control. Aspects such as assembly, disassembly and internal cable routing are also assessed. The design seeks a balance between rigidity, lightness and modularity.
MODULAR SYSTEM
The external components are designed with a modular approach, allowing for quick installation and removal without interfering with the main body of the AUV. Mounts for sensors, manipulators or cameras follow a common mechanical pattern, facilitating interchangeability. This modularity allows the robot to be adapted to different challenges or mission configurations. It also reduces maintenance and field testing time. Each module is integrated with consideration for sealing and hydrodynamic compatibility.
MECHANICAL SIMULATIONS
We use simulations to evaluate deformations, stresses and safety factors under hydrostatic pressure. These virtual tests allow us to identify critical points and optimize the structural geometry before manufacturing. Stability and drag analyses are also performed using fluid dynamics simulations. This ensures that the AUV maintains control and efficiency during movement. Simulations are essential to validate the design under real-world conditions.
