A Vector Bond Graph-based Organizations Kinetic Analysis In The Clamping Mechanism Study

With the development of mechanism becoming high speed, heavy load and light duty, the system function is more and more decided by its dynamic performance. Since the bond graph has been widely used in modeling in many fields, but it's very difficult to model the complex mechanism system , so a method of equivalent dynamic analysis based on bond graph has been proposed aim at solving this problem.First the method of bond graph modeling in mechanical field has been summarized, including the research status quo and development history. According to many reference, it's very difficult to use generic bond graph to model the complex mechanism because of its scalar quantity. So vector bond graph has been used to meet the difficulty. Since the equivalent model is very simple, and the elastic deformation and moment of inertia of the mechanism component have been considered by this method, so a equivalent dynamic analysis method based on bond graph has been proposed which includes the method of equivalent dynamic analysis based on general bond graph and the method of equivalent dynamic analysis based on vector bond graph. This new method can be used to model the gripper mechanism of the large-scale forging machine. According to the results of the new method which has been used to model the gripper mechanism, it shows that the model is correct and effective. And it is more compact compared with the traditional dynamic analysis method. So the bond graph method has been extended to model the complex multi-body mechanism system.