Situation

• Rapid advancement of SLBMs and nuclear-powered AUVs by neighboring countries.
• Urgent need for long-term, covert surveillance to counter evolving maritime nuclear threats.

Task

• Achieving superior acoustic stealth for 5-year unmanned mission profiles.
• Maintaining integrity of nuclear reactors and precision sensors against structural noise.
• Implementation of high-performance vibration reduction for covert operations.

Action

• AI-Driven Metastructure Design & Optimization.

• Study 1 (QZS-based):
  Design of local buckling metastructures for low-frequency vibration isolation via Quasi-Zero Stiffness (QZS) under high-preload conditions.
• Study 2 (Kirigami-based):
  Design of kirigami composite metamaterials for simultaneous high-load structural integrity and precision vibration reduction.
• Study 3 (Truss-based):
  Design of truss-based resonant metastructures for enhanced underwater vibration attenuation via inertial amplification effects.

Result

• Exceptional Noise Reduction: Significant reduction in sonar detectability through low-frequency vibration control.
• Long-term Operational Success: Proven feasibility of reliable, autonomous operations for nuclear-powered motherships.