Study on the Application of Multi-Step Predictive Self-Tuning Arithmetic in Hybrid Isolation System

Abstract

The radiated noise caused by the vibration of the power plant equipment is in the low frequency band and contains discrete lines in the noise spectrum. Insertion of resilient isolators between the machinery and the base is one of the most common methods for controlling unwanted vibration and hence reducing the radiated noise. Passive and active vibration isolation systems have their own relative merits. Therefore, hybrid vibration isolation, a combination of passive and active isolation technique, is a solution to improve the vibration isolation effectiveness. In order to offset the deficiency of passive vibration isolation system of power equipment on ship, the control system of multi-step predictive self-tuning arithmetic in hybrid vibration isolation system was build. The model of the system was obtained and the design of control system was given. And the same time a example of system design was simulated and analyzed. The result showed that the control system of multi-step predictive self-tuning arithmetic in hybrid vibration isolation system can effectively offset the deficiency of passive vibration isolation system and the system have the well performance of robustness.