Kinematic characteristic of elastic-plastic debris behavior in vehicle collision;

Dynamics analysis on motorists during vehicle collision accidents;

Research on the calculation models of vehicle collision for analyzing traffic accidents;

Vehicle impact test is one of the mandatory tests for vehicle design regulations in China.

Nonlinear and non-stability car impact signal processing method is strdied,and time-frequency for multi-resolution is analyzed.

Some traditional international pedestrian injury formulas were simply improved and pedestrian injury was analyzed on the basis of introducing the characteristics between pedestrian and car impact and the relevant measured parameters.

Research on computer simulation for deformation of vehicle crash;

Study of analysis procedure for impact response of occupant during vehicle crash and its application;

Discussion on strain rate effect in numerical simulation of vehicle crash;

Contact-impact of large-scale complex structural system, such as car crash, is involved with geometric nonlinearity caused by large deformation, material nonlinearity due to elastoplastic constitutive relation, and boundary nonlinearity related to multiple contact surfaces; furthermore it is transient response of a system with large number of DOF.

But now because the loss of accident increases greatly, the study of car crash safety performance attracts the increasing attention of a consequence of car company in the whole world.