Decoupling Control of Multi-DOF Supporting System of MLDSB

Magnetic liquid double suspension bearing (MLDSB) is composed of an electromagnetic system and hydrostatic its capacity stiffness can be greatly improved. It very suitable for occasions medium speed, heavy load, starting frequently. Due to the gyroscopic effect interference between supporting system, space state rotor affected operation stability MLDSB reduced greatly. Therefore, coupling features multi-degree freedom (multi-DOF) are analyzed a decoupling controller designed verified in paper. Firstly, paper introduces structural characteristics, stress forms, control regulation mechanism. Then, mathematical transfer function multi-DOF established principle revealed. The feedback by means decoupling, Simulink module. Finally, single-DOF independently controlled use root locus method. characteristics channel x y tested experimentally, added tested. results show that effectively reduce degree convert problem into independent problem. using controller, with subsequent displacement characteristic increased, then improved This enrich support provide theoretical reference control.