Research progress and development trend of health assessment of electromechanical equipment

The maintenance and repair of electromechanical equipment such as aerospace equipment, high-grade CNC machine tools and wind power generation equipment directly affect its comprehensive efficiency and service life. Health assessment is the basis of maintenance strategy formulation and maintenance resource management. It is the premise of predictive maintenance, fault prediction and health management. The traditional health assessment method has the disadvantages of relying too much on expert experience, unable to process large-scale data and low accuracy, which is difficult to meet the needs of modern electromechanical equipment health management technology. On the basis of combing and analyzing the latest research results of health status assessment of electromechanical equipment at home and abroad, this paper summarizes the research progress and development trend of health assessment of electromechanical equipment from four key links: signal acquisition, feature extraction, health status division and health assessment; The challenges faced by the related technologies of health assessment of electromechanical equipment are pointed out; Finally, the solutions and development trends to deal with these challenges are discussed. © 2022, Jilin University Press. All right reserved.