Low-amplitude exercise load strengthening model

The invention discloses a low-amplitude exercise load strengthening model in the technical field of automobiles. Experimental data of strengthening load intervals, optimal strengthening loads, yield limits and fatigue limits of five parts with different strengths are summarized; analyzing the data, and constructing an optimal strengthened load mathematical model; constructing a strengthening effect mathematical model; constructing a strengthening frequency mathematical model; the five parts with different strengths are a truck front axle, a car transmission shaft, a transmission gear, a car rear axle and an electric car hub reduction gear, a mathematical model universally applicable to low-amplitude load strengthening is deduced according to the low-amplitude load strengthening rules of structural parts with different strengths, and a universal low-amplitude load strengthening rule analysis method and expression mode are formed; a load spectrum load threshold determination method is provided, a structural mem