Modeling method and strength analysis method for vehicle door inward-opening handle assembly

The invention discloses a modeling method of a vehicle door inward-opening handle assembly, which comprises the following steps: S1, respectively establishing three-dimensional models of a handle anda base, and carrying out mesh generation; S2, establishing a three-dimensional model of the rotating shaft in a segmented mode; S3, carrying out grid refinement on the through hole part and the stressconcentration area; and S4, importing the grid model into finite element analysis software, defining related contact pairs according to an actual contact relationship between components, establishinga finite element model, and endowing the finite element model with material parameters of the handle. It can be guaranteed that the model precision meets the requirement, and the accuracy of a simulation analysis result is improved. The invention further discloses a strength analysis method of the vehicle door inward-opening handle assembly, the finite element model of the vehicle door inward-opening handle assembly is obt