3 results about "Structural difference" patented technology

The present application belongs to the technical field of sheet metal forming, and particularly relates to a creep age forming method for strengthening the coordination of deformation in the reinforced area and the thin skin area and application. The method comprises the following steps: calculating the required pressure for part fitting by using the finite element method; calculating the maximum axial stress when the part is fitted with the die surface; obtaining a gasket according to the maximum axial stress; placing the gasket on the surface of the thin skin area and fixing it; placing the part with the fixed gasket on the die, and sealing by using the vacuum method; placing it in a heating furnace or a hot press tank, and fitting the outer surface of the part with the inner surface of the die according to the calculated pressure and the pre-set process parameters; after the creep age is completed, unloading the temperature and pressure on the formed part. The purpose is to solve the problem that the inconsistency of springback after forming caused by the structural differences of the workpiece itself during creep age forming, thereby affecting the accurate forming of the part.

The invention belongs to the field of defect detection, and discloses a method for detecting appearance defects of multi-model stamping parts, which comprises the following steps of: S1, acquiring a model number and an input tensor of a currently processed workpiece; s2, obtaining a structure perception guide graph based on the input tensor; s3, acquiring a defect set based on the structure perception guide map; and S4, the quality of the workpiece is judged based on the defect set, and a quality detection result is obtained. Structural information is explicitly introduced into all links of the detection process, correlation between structural differences and decision paths is broken through, the system has the capacity of stable operation in the multi-model and high-structural-difference environment, and the generalization capacity of stamping part defect detection, the accuracy of key areas and the reliability of quality output are effectively improved.

The application discloses a kind of frame assembly structure optimization method, device and electronic equipment, belong to automobile technical field, method includes: S1: the node is established to the front axle of the frame to be optimized, rear axle longitudinal beam airfoil, the node is applied forced displacement to realize angle torsion, the torsional stiffness value between the shaft of the frame to be optimized is calculated;S2: the torsional stiffness value between the shaft of the frame to be optimized and the frame of benchmark pole vehicle type is compared, and the structural difference point of the frame to be optimized is identified;S3: the influence of each structural difference point on the torsional stiffness value between the shaft of frame is analyzed, and optimization scheme is determined according to the rationality of whole vehicle arrangement and cost.The application sets the torsional stiffness target value between the shaft of frame assembly, studies the influence of key parts of frame assembly on the torsional stiffness between the shaft, considers the demand of whole vehicle arrangement and cost index, uses parameterized modeling method to strengthen structure to meet the requirement of torsional stiffness target value between the shaft, solves the problem of poor followability.