A Class Of Rigid-flexible Coupling Multibody System Dynamics Modeling And Simulation

The rigid-flexible coupling system is a typical multi-body system. Its dynamic problem is quite different from the dynamic problem of a multi-body system. It is complicated by the coupling between the large overall rigid motion and the small elastic deformation. Its dynamic problem is academically difficult. The dynamics simulation software package is very important in research and the design of products. Based on the theories of multi-body systems, this paper presented the subsystem method for dynamics of a rigid-flexible coupling system and a method for a flexible cantilever beam attached to a moving central rigid-body undergoing an arbitrarily three-dimensional large overall motion .From a numerical simulation, we can find the effect of flexibility on dynamic response. And the theory of dynamic and control is more perfect.The work of this dissertation is shown as follows:1. The paper established dynamic equations of the subsystem method for dynamics of a rigid-flexible coupling system and a beam undergoing an arbitrarily three-dimensional large overall motion;2. The established dynamic equations are solved effectively;3. A software of numerical simulation is complied;4. Examples are given and the dynamic properties of flexible beams are studied.