Abstract: A method to set up the parameters of solder paste screen printer while in a new product introduction (NPI). The method includes establishing a solder-printing database of a predetermined product and a database of different specifications of products, and training a first prediction model by reference to a solder paste screen printer (SPSP) and a solder paste inspection (SPI) based on the solder-printing database. A second prediction model is trained by reference to the SPI based on the database of different products. The method further includes predicting parameters for products with different specifications under multiple sets of printing parameters based on the first and second prediction models. An objective function based on the predicted measurements is established, and a specification of a product and a printing expectation parameters are input to the objective function for outputting many sets of printing-suggestion parameters of the new product.

Abstract: A method for quickly predicting a fatigue life of a wrinkle defect-containing main spar in a wind turbine blade is provided. The method includes: S1: testing a tensile property of a wrinkle defect-containing main spar to be tested; S2: calculating, according to surface temperature data of the specimen obtained in step S1, intrinsic dissipated energy of the main spar specimen under different loading stresses; S3: plotting a relational graph between intrinsic dissipated energy of the specimen and a corresponding ultimate tensile strength (UTS) level; S4: establishing, based on a change of the intrinsic dissipated energy in a fatigue process, a normalized residual stiffness model containing parameters to be determined, and putting fatigue test data into the model; S5: deducing a fatigue life prediction model for the wrinkle defect-containing main spar specimen according to the normalized residual stiffness model with determined parameters; and S6: obtaining a normalized failure stiffness.

Abstract: A method for finding manufactured or to-be-manufactured products for defects includes obtaining basic information on processing history of products passed by each manufacturing machine at each processing workstation, and obtaining processing factor information of same, where each product is passed by a defect detection workstation after the product is passed by at least one processing workstation. The method includes obtaining quality information detected by each defect detection workstation. The method determines one or more problem manufacturing machines at one or more problem processing workstations according to the basic information on processing history and the quality information of the products. The method further determines one or more processing factors which influence the problem manufacturing machines according to the processing factor information of each manufacturing machine and the quality information of the products.

Abstract: A method for quickly predicting a fatigue life of a wrinkle defect-containing main spar in a wind turbine blade is provided. The method includes: S1: testing a tensile property of a wrinkle defect-containing main spar to be tested; S2: calculating, according to surface temperature data of the specimen obtained in step S1, intrinsic dissipated energy of the main spar specimen under different loading stresses; S3: plotting a relational graph between intrinsic dissipated energy of the specimen and a corresponding ultimate tensile strength (UTS) level; S4: establishing, based on a change of the intrinsic dissipated energy in a fatigue process, a normalized residual stiffness model containing parameters to be determined, and putting fatigue test data into the model; S5: deducing a fatigue life prediction model for the wrinkle defect-containing main spar specimen according to the normalized residual stiffness model with determined parameters; and S6: obtaining a normalized failure stiffness.

Abstract: An abnormality monitoring method includes obtaining multiple target machine process parameters that affect a measurement value of a preset product at a first measurement point of the preset product, constructing a measurement value prediction model corresponding to the first measurement point, calculating a degree of fit of the measurement value prediction model, aggregating the degree of fit of the measurement value prediction model, the estimated value of the first measurement point, the target machine process parameters corresponding to the first measurement point, and the parameter coefficients of the target machine process parameters, repeating the above steps for each of multiple measurement points, calculating an influence degree index value of each machine, process parameter, and outputting warning information of machine process parameters that exceed a first preset influence degree index value.

Abstract: A method for classification parts and components of a manufacturable device and a system of processing data relevant to such parts obtains data of the components, the components comprising many different types of parts to be assembled together. A clustering model can cluster the data to each cluster and the labeling module would label for the data in each cluster. A classification model classifies and assembles data into data classes that are labeled, also indicating assembly of the different types of components. The disclosure also provides an electronic device and a non-transitory storage medium.

Abstract: A method for finding manufactured or to-be-manufactured products for defects includes obtaining basic information on processing history of products passed by each manufacturing machine at each processing workstation, and obtaining processing factor information of same, where each product is passed by a defect detection workstation after the product is passed by at least one processing workstation. The method includes obtaining quality information detected by each defect detection workstation. The method determines one or more problem manufacturing machines at one or more problem processing workstations according to the basic information on processing history and the quality information of the products. The method further determines one or more processing factors which influence the problem manufacturing machines according to the processing factor information of each manufacturing machine and the quality information of the products.

Abstract: A method for carrying out measurements on a virtual basis to decrease the frequency of taking and analyzing actual physical samples and interruptions caused thereby includes obtaining production information of at least one production device; and generating prediction data of measured products and unmeasured products using the production information and a prediction model, the prediction data comprising critical dimension data of the product. A virtual metrology device and a computer readable storage medium are also provided.

Abstract: A method to set up the parameters of solder paste screen printer while in a new product introduction (NPI). The method includes establishing a solder-printing database of a predetermined product and a database of different specifications of products, and training a first prediction model by reference to a solder paste screen printer (SPSP) and a solder paste inspection (SPI) based on the solder-printing database. A second prediction model is trained by reference to the SPI based on the database of different products. The method further includes predicting parameters for products with different specifications under multiple sets of printing parameters based on the first and second prediction models. An objective function based on the predicted measurements is established, and a specification of a product and a printing expectation parameters are input to the objective function for outputting many sets of printing-suggestion parameters of the new product.

Abstract: A lithium-ion auto startup storage battery with a supercapacitor function, includes a power supply, composed of a plurality of lithium batteries connected with each other in series; a supercapacitor connected with the power supply in parallel; an over charge-discharge protection device connected with the power supply in parallel; and a double-loop charge-protection system connected with the supercapacitor in parallel, which includes an inner loop circuit and an outer loop circuit, so that a constant current charger achieves firstly a constant current and then a constant voltage when the lithium-ion battery is charged. The present invention further includes a digital control voltage feedback multilevel current device to resolve an equilibrium problem of connecting large-capacity lithium-ion batteries in series.

Abstract: A clamp fixture with multi-directional opening comprises a front clamping head, a rear clamping base, a top and a bottom pressing plates and two latching bases. The latching bases are provided on top of the front clamping head and the rear clamping bases respectively. Each of the latching bases further comprises a bracket, a pin shaft, a thumb latch and a torsion spring. The thumb latch can be pressed down to securely position the top pressing plate, cooperating with the bottom pressing plate which feeds through the front clamping head and the rear clamping base to form a space for securely clamping the working objects with multiple panels. The operation is simple and the structure is compact.