The invention relates to the technical field of
vehicle safety, in particular to a
pedestrian body model chest
injury risk curve adjusting method. Comprising the following steps: analyzing the relationship between the speed and the chest
injury risk, and drawing a first curve between the vehicle speed and the
injury risk based on accident statistical data; fitting data of a rib
cortical bone uniaxial stretching material
mechanics experiment; constructing a vehicle-
pedestrian side impact simulation experiment matrix under different working conditions, and generating a
simulation sample number; extracting the rib strain of the
human body model in the sampling model, calculating the fracture probability of a single rib of the chest of the
human body model, and then calculating the maximum simple injury probability of the specified chest of the
human body model; fitting the relationship between the vehicle speed in the
simulation model and the chest injury risk of the
human body model, and drawing a second curve between the vehicle speed in the sample and the chest injury risk of the
pedestrian model; and constructing an objective function according to the difference between the first risk curve and the second risk curve. According to the technical scheme, the accuracy of accident damage prediction can be improved.