Gear contact fatigue life prediction method based on GA-BP neural network
A BP neural network and GA-BP technology, applied in the field of intelligent manufacturing, can solve the problems of imperfect accumulation theory of fatigue damage, failure to consider the influence of fatigue damage, fatigue damage of dangerous points, etc. The effect of high prediction accuracy
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[0021] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0022] Such as figure 1 As shown, this embodiment includes the following steps:
[0023] S1. Collect the test data of the gear contact fatigue test, and use the gear parameters to analyze the influence of the gear contact fatigue life. The structural characteristic parameters and material parameters of the gear are used as input parameters, and the gear contact fatigue life is used as the output parameter. For each set of test data Perform normalization processing and use it as a training sample and a test sample.
[0024] 143 sets of gear contact fatigue life test data were collected from multiple universities and research institutes. The selected input parameters include but are not limited to the number of teeth, roughness, contact stress, tooth surface hardness and material parameters. The output parameter is the contact fatigue life of the gear. The un...
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