Simulation method for static torsional rigidity and torsional elastic limit of spline type steering intermediate shaft

The invention discloses a spline type steering intermediate shaft static torsional rigidity and torsional elastic limit simulation method, and relates to the field of part performance tests.The spline type steering intermediate shaft static torsional rigidity and torsional elastic limit simulation method comprises the steps that S1, finite element numerical modeling software is adopted to conduct geometric cleaning on a spline type steering intermediate shaft three-dimensional mathematical model; s2, the spline type steering intermediate shaft is subjected to grid division in finite element numerical modeling software; s3, the assembly relation and the motion relation of all the components of the spline type steering intermediate shaft are defined in finite element numerical modeling software; s4, giving material attributes to the model, defining boundary constraint conditions according to test conditions, and performing solution calculation through finite element solution software; and S5, post-processing th