38 results about "Thermo elastic" patented technology

The invention provides a laser thermoforming deformation prediction method and system for a hull outer plate, including: step 1: establishing a process window about heat source parameters and plate parameters; step 2: performing multiple sets of thermal elastic-plastic finite element based on the process window Simulate and extract the equivalent inherent strain results; Step 3: Establish a predictive neural network model based on the equivalent inherent strain results, and generalize the equivalent inherent strain results under other process parameters in the process window; Step 4: Combine the equivalent inherent strain results It is given to the model in the form of anisotropic thermal expansion coefficient as the initial property of the model; Step 5: By applying a unit temperature load to the model, ensure that the size and direction of the thermal strain distribution obtained by calculation are the same as the equivalent inherent strain distribution; Step 6: The thermoelastic finite element simulation is performed to obtain the deformation displacement of the material. The invention can quickly solve the deformation results of large-sized plate parts and complex paths, and realizes the automatic laser heating forming processing of the hull outer plate.