A novel method for residual life assessment of used parts: a case study of used lathe spindles

A remanufacturability evaluation model of used servers from performance perspective

“…Ding et al take aero-engine compressor blades as the research object, and propose a preliminary remanufacturability research scheme and a remanufacturability research scheme based on residual fatigue life and fatigue damage for blades with cracks on the surface of arbitrary depth [4][5][6]; Gao et al propose a prediction method for the remaining life of the hydraulic bracket by studying the failure forms and causes of the main structural parts of the hydraulic bracket before remanufacturing and evaluated its remanufacturability with this as a reference [7]; In view of the uncertainty of the failure state of the impeller of centrifugal pump, Hu et al establish a remanufacturability analysis method for centrifugal pump with re-service performance, and analyze it qualitatively and quantitatively [8]; Liu takes the spindle of retired machine tools as the research object, combines with the fatigue damage accumulation theory, finite element theory, elastoplastic mechanics and other theoretical methods, establishes a complete method for predicting the remaining life of the machine tool spindle, and analyzes its remanufacturability [9]; Wang et al take the high-strength steel FV520B-I blades in centrifugal compressors as the research object, establish a prediction model of remaining life under different fatigue damage conditions, and propose a remanufacturability judgment method based on the relationship between residual fatigue life and remanufacturability [10,11]; Jia et al establish a calculation model for the crack initiation life of dangerous points in the TBM cutter hob area through the study of the influencing factors of the remaining crack initiation life of dangerous points in the TBM cutter deck, which provided a theoretical basis for the study of its remanufacturability [12,13]; Jiang establishes a prediction model for the remaining life of the main components of automobile generators and proposes a correction method for the fatigue life of the components after remanufacturing, and also evaluates the feasibility of their remanufacturing. [14]; Zhang et al propose a characterization method for failure features of retired parts based on shape recovery from motion and Poisson surface reconstruction,which provides data support for the remanufacturability assessment of retired parts [15]; In view of the fatigue fracture, wear and excessive deformation of the waste spindle, Liu proposes a remaining life prediction and evaluation model based on the nonlinear continuous fatigue damage model, considering the factors affecting crack closure and crack development [16]; In view of the shortcomings of the existing methods for fatigue damage assessment and remaining life prediction of remanufactured sucker rods, Gao proposes an optimized support vector machine model prediction method based on metal magnetic memory test [17]; By establishing a mapping model between operational performance, reproducibility and structural failure conditions, Ke proposes a decision-ma...…”