and using the finite element analysis software ANSYS10.0 the transient response is analyzed.The distribution of regional and changes of the law of the link stress in specific condition are got.In the process of the analysis
using of data tables to impose the inertial load and dynamic load
a higher degree of simulation results and more accurate are got.The results show that the maximum equivalent dynamic stress occurs in a positive head where is the transition of the link;here are the weakest areas of dynamic strength.