The high-end equipment represented by high-end machine tools and aero-engines is the core component of the national intelligent manufacturing plan, and the mass unbalance is the main reason for its excessive vibration, that seriously impacts the operation efficiency and running life of the equipment. In order to change the traditional way that the fault of equipment can only be repaired by human, the self-recovery mechanism of human and animal are given to the equipment in this paper, which forms the self-recovery regulation (SR) system for unbalance vibration of high-end equipment. The system can online generate the self-recovery force to restrain the unbalance vibration of the equipment in operation, which is an important direction for the development of the equipment to the advanced intelligent stage. Based on the basic principles of SR technique, the typical engineering application cases of this technique in the field of aeroengine and high-end machine tools are introduced, and four related studies promoting the development of this technique are summarized and analyzed in turn. It includes feature extraction, imbalance location, regulation method and balancing actuator. Self-recovery Regulation (SR) Technique is an important way to realize intelligent manufacturing and intelligent maintenance. Relevant research can lay a technical foundation for the development of high-end equipment with self-health function.

Rotor mass imbalance is the main cause of vibration overload of high-end turbine units, which can easily induce a variety of failures such as shaft tile and seal wear, and blade breakage. The online automatic balancing system can solve the problem of imbalance of rotor mass during the operation of the equipment, and at the same time can ensure the long-term stable operation of the equipment. Therefore, a new pneumatic–liquid on-line automatic balance (PLOABS) system is proposed for high-end turbine units, which has the advantages of simple structure, no moving parts in the rotating element, closed action environment, reversible balancing process and can maintain the original state when restarted. Using ANSYS software, the gas driving force and the internal gas–liquid rotating flow field of the actuator are simulated and analyzed, and the actuator structure has been further optimized. At the same time, a set of the PLOABS system is built to conduct automatic balancing experiments. The results showed that the rotor amplitude was reduced from 18.3 to 10.6 μm, which verified the feasibility and effectiveness of the PLOABS technology and laid the foundation for the subsequent engineering application of the PLOABS technology.