关键词: 潜艇；浮筏；隔振系统；控制

Abstract:

A semi-active fuzzy sliding mode controller was designed for floating raft isolation system with electro-rheological (ER) damper.Coefficient of sliding mode surface was selected in accordance with Hurwitz stable judgement of sliding mode motion equation. According to reaching condition and the controlled damping force assuring the increment of energy dissipation of stable system, a semi-active fuzzy sliding mode controller was designed.Force transmissibility, input force,and output force response of floating raft isolation system, respectively, under chirp exciting signal and dual-frequency exciting signal were simulated. The simulation results indicate that the performance of floating raft isolation system designed with semi-active static output feedback fuzzy sliding mode control method is remarkably better than those of optimally passive damping.

Key words: submarine;floating raft;vibration isolation system;control