Design of an AUV Recovery System Based on a Cable-Based Cable Reduction Device

With the continuous advancement of marine technology and growing humanity’s demand for ocean exploration, autonomous underwater vehicles (AUVs) have been widely deployed. Consequently, the safe, efficient, and accurate recovery of AUVs has become a significantly important research issue. To address these challenges, this study proposes an AUV recovery system utilizing a Cable-based roll reduction device. Based on existing marine crane equipment, the crane design is modified to incorporate this roll reduction mechanism. A three-dimensional model and kinematic model of the recovery system were established for analysis. MATLAB-based simulation analysis examined the forces and motion states under wave disturbances. A novel recovery cage was designed, modeled in SolidWorks, and subjected to finite element analysis to verify structural strength and validate design rationality. Final results demonstrate that this device significantly reduces recovery system sway, substantially enhances AUV retrieval accuracy, and provides a novel approach for AUV recovery.