Cutter residual effective life prediction method and system based on physical degradation model
The invention provides a cutter remaining useful life prediction method and system based on a physical degradation model, and relates to the field of cutter remaining useful life prediction.The specific scheme comprises the steps that cutter features are extracted from cutting machining process sign...
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| Main Authors | , , , |
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| Format | Patent |
| Language | Chinese English |
| Published |
04.06.2024
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention provides a cutter remaining useful life prediction method and system based on a physical degradation model, and relates to the field of cutter remaining useful life prediction.The specific scheme comprises the steps that cutter features are extracted from cutting machining process signals, and health factors are constructed; when the second derivative of the health factor observed on line exceeds the health state interval of the cutter, first prediction of the remaining effective life of the cutter is started; on the basis of an expectation maximization algorithm and Bayesian updating, model parameter updating is carried out on the constructed physical degradation model of the cutter state, and a final physical degradation model is obtained; utilizing a physical degradation model to construct advanced prediction posterior probability distribution of the remaining useful life of the tool, and calculating the remaining useful life of the tool at a to-be-predicted moment; according to the method, t |
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| Bibliography: | Application Number: CN202410335675 |