Abstract: According to the shortcoming of parameters experience selection, parameters of segmented damping composite bogie wheel were optimized considering the effect of vibration dissipation energy on buffer quality. A vibration energy dissipation model for bogie wheel was established. Based on the maximum of dissipation energy, optimization of the thickness of each layer and segmented angle were developed by ANSYS parametric language under the common work condition; and then the mechanical characteristics of the optimized bogie wheel were verified under extreme work condition. The results showed that the stress-strain of the optimized bogie wheel was within the reasonable scope and its dissipation energy was raised 83% compared with that of the bogie wheel before optimization. The optimization results can provide reference for the application of damping materials in bogie wheel.