Modeling and Synthesis Methods for Retrofit Design of Submarine Actuation Systems. Energy Storage for Electric Actuators

摘要

This report describes methods for retrofitting legacy hydraulic systems, particularly evaluating means for generating and verifying retrofit or new system design requirements. Methods that combine physics-based modeling, simulation, and design techniques are described and applied to a submarine control surface actuator retrofit problem. First, an integrated submarine/actuator subsystem model is developed for simulation-based design requirements generation. Simulations are used to derive power and energy storage requirements for control surface actuation during extreme submarine maneuvers, such as emergency surfacing. This study also investigated synthesis methods based on classical impedance synthesis techniques for realizing feasible actuator system configurations based on performance specifications. Application to disturbance rejection demonstrates resulting designs that are purely passive or fully active electromechanical systems. These methods can supplement designs proposed by domain experts, and enable means for choosing different configurations and for initially sizing system components.