ACTIVE VIBRATION ISOLATION SYSTEM BASED ON CINEMATIC OPERATION PRINCIPLE WITH DIGITAL CONTROL

摘要

Active vibration isolation systems are under review, which are intended for objects protection against vibrations of basement. Connections of the object with its basement represent stiff/relative position of the object, its basement and of acselerometers that are located at the object and on its basement. Generalized structural scheme of unidirectional system is being considered. Problem of optimum regulator/controller synthesis has been set up: for the purpose of motions control the regulator/controller uses signals of acselerometers of the object, its basement and relative displacement sensor. The problem is being solved in frequency area through Viener-Hopf's multidimensional equation compiling and solving with usage of generalized quality functional with square-law characteristic. Possible variants for channels combination of three sensors have been examined and optimum transfer functions for these variants have been obtained. The structure of optimum transfer functions while using acselerometer, installed on the basement, is considered to be a new research result.