Evaluation method for accelerated life prediction model of component
**The invention provides a method for evaluating an accelerated life prediction model of a component. The method comprises the following steps: S1, establishing a reliability model R * (t) by using all data; t1, T2, T3,..., TS are set as the acceleration stress of the product; s2, dividing the accel...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | **The invention provides a method for evaluating an accelerated life prediction model of a component. The method comprises the following steps: S1, establishing a reliability model R * (t) by using all data; t1, T2, T3,..., TS are set as the acceleration stress of the product; s2, dividing the acceleration stress according to the proportion of (S-1): 1, and dividing the data into training data and test data; s3, establishing a reliability model according to the training data in each combination, deducing a reliability function of stress corresponding to the test data, and recording the reliability function as R (t); reliability modeling is independently carried out by using test data, and an obtained reliability function is defined as a standard reliability function and recorded as R0 (t); and S4, comparing R (t) and R0 (t) of all combinations, and if errors are all within a given threshold range, determining that the model R * (t) is accurate. The invention provides a new thought for the accuracy evaluation |
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