Studying an Active Vibration-Protection System with a Linear DC Actuators

Abstract

This paper dwells upon the efficiency of active vibration-protection systems with a controllable rigidity element, which is a linear DC motor (LDCM). For the adopted single-mass simulation model with the paper-mentioned assumption, we have obtained mathematical models written as transfer functions (TF) for the disturbance/control channel. Based on the formulas derived, we generated structural diagrams to study the properties of closed and open systems. We designed the structure of an active closed vibration-protection system including an LDCM, a controllable converter, a controller, and an acceleration sensor for the protected object. The system was modelled mathematically. A controller was synthesized with due account of the required dynamic properties of this closed system. We further tested this system for efficiency and drafted guidelines on its use.