The application discloses a kind of automobile
leaf spring motion
stroke parameter optimization matching method and
system.The method includes: to the basic car is carried out road spectrum collection, respectively obtains the load Fx, Fy, Dz of vehicle at wheel center in x, y, z direction, and the torque Mx, My, Mz around x, y, z axis;Establish the multi-
body dynamics model of vehicle ADAMS, exert wheel center force Fx, Fy, Dz, Mx, My, Mz at wheel center, and solve the load of
leaf spring at
leaf spring seat;
Stress field is solved to the fatigue analysis of leaf spring, and fatigue analysis is carried out to leaf spring;The maximum
stroke of leaf spring is equivalent to the optimization of limit block hard point coordinate, the z direction coordinate of limit block hard point is parameterized, and the optimal leaf spring
stroke parameter is determined based on Isight platform.The application can solve the problem of long optimization
iteration cycle caused by artificial repeated
trial and error in the prior art, and can speed up product development.