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- W3217115340 abstract "Abstract Aiming at the problems of low assembly accuracy and difficult to detect assembly quality of combine, a method of combine assembly quality detection based on sparrow search algorithm (SSA) optimized variational mode decomposition (VMD) and particle swarm optimization (PSO) optimized least squares support vector machine (LSSVM) was proposed, Firstly, the sparrow search algorithm is used to obtain the optimal VMD decomposition modal parameter K and penalty factor α , then the combined vibration signal of combine harvester is decomposed into intrinsic modal components of different center frequencies by using the best parameter combination [K, α ]. Finally, the feature vector is used as the input of LSSVM classifier to classify different fault features. The analysis results show that the classification accuracy of SSA-VMD joint feature extraction method is 99.5%, which is 17.5% and 9.5% higher than ensemble empirical mode decomposition (EEMD) and fixed parameter VMD, which verifies the superiority of this method in the detection of combine assembly quality." @default.
- W3217115340 created "2021-12-06" @default.
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- W3217115340 date "2021-11-01" @default.
- W3217115340 modified "2023-09-30" @default.
- W3217115340 title "Inspection method of combine assembly quality based on optimized VMD" @default.
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- W3217115340 doi "https://doi.org/10.1088/1742-6596/2125/1/012021" @default.
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