Research On Design And Simulation Of Vehicle Brake

In view of the existing problems of underground vehicle braking mode,such as complex operation,poor dynamic response,leakage of hydraulic oil,complicated circuit and etc.,the electromechanical combined link drum brake is proposed,which realizes the autonomous braking control of the vehicle in a complex environment.The braking process of the vehicle brake system is analyzed and the mechanical structure of the brake device is designed.According to the overall parameters of the vehicle,the main dimension parameters of the drum brake are determined and the mechanical analysis of the brake is performed.The 3D solid model of the brake is established and virtually assembled by using CATIA.The braking characteristic curves under different urging forces are obtained by using ADAMS to analyze the dynamics of the brake,and the optimal braking parameter is determined.The finite element software ABAQUS is used to analyze the thermal stress coupling of the key components of the drum brake.The temperature distribution cloud diagram and the thermal stress distribution rule of the brake drum,brake lining,and brake shoe are obtained.The areas where the stress is concentrated are analyzed and suggestions for improvement are proposed.The influence of different brake drum materials on the temperature rise of the brake drum is compared and analyzed,which provides a theoretical basis for the selection of brake drum materials.Through the design of the software and hardware of the control system,the autonomous braking control of the vehicle is realized,and the experimental circuit is built to complete the test,verifying the feasibility and accuracy of the control system design.Through the research of this paper,the feasibility of the braking scheme of the wheeled vehicle is verified,and it also provides a reference for the design of the underground vehicle braking system.