Analysis And Research On Brake Of A High - Speed Moving Body

As the executive component in the braking process, the performance of brake can directly affect the safety and deceleration stability of the braked moving object. Therefore, it is very important to study the braking performance of the brake. This thesis takes the brake for a high speed vehicle as research object. The overall design scheme was proposed, and with the help of finite element technique, the modal analysis of the overall model was carried out. By multi-body dynamics, the dynamics simulation of the brake was conducted.Firstly, the research status and development tend about brake as well as its modeling and simulation was reviewed. Based on the studies of braking principles, an overall program was proposed. The detailed designs of its main components were conducted, and the 3D model of the brake was built based on Solidworks. After that, the modal analyses of the upper and lower friction plates and rail were conducted by ANSYS, and the future structure optimization proposal was proposed based on the modal analysis results. Based on ADAMS, the rigid-flexible coupling model of brake system was established. Through dynamics simulation of the brake process, it was proven that the designed brake can achieve the brake performance of smooth deceleration of the moving body. The motion rule of the unload mechanism was analyzed according to the dynamic simulation of unloading process. The simulated results showed that the designed unload mechanism met the requirement of brake’s unload requirement well.This thesis provides a useful basis and guidance for the further design and research of such kind of brake for high speed vehicle. It may be a good reference.