This report gives a complete overview of the work of tno-iw on the program package "madymo" for crash injury prevention research, since the start in 1973. The aim of this project is the development of a highly versatile program package for 2- and 3-dimensional simulations of traffic accidents, ultimately stimulating prevention of injury. Examples are a restrained vehicle occupant, a car that hits a pedestrian, and a carry-cot with a baby on the back seat. the first part gives a comparison of mathematical and experimental simulations, explains the choice of a general program package and the reasons for the approach developed by tno. this part briefly describes "madymo", together with some examples. The middle part deals with the mathematical background. It gives details on lagrange's technique, the integration techniques of runge kutta and hammings, and the methods for calculation of the external forces. The last part gives examples of five different simulations, thus showing the versatility of the "madymo" program. It also shows how the results of the simulations are presented. (See also B 11473)
Abstract