The Study Of Virtual Prototype Technology On Dynamics Simulation Of Spacecraft Deployable Machanism

In this paper the development and the application of virtual prototype technologyand spacecraft deployable mechanism is commented, elaborating the background ofthis paper. This paper's sample is the solar panel system of Hard X-rays ModulationTelescope(HXMT) satellite and the deployable boom system (DBS) of GeospaceDouble Star Exploration Project (DSP). The virtual prototype systematic models ofthe solar panels of HXMT and the deployable booms of DSP were established .Theaccomplishment is as followed:The three-dimensional models of the solar panels of HXMT and the deployablebooms of DSP are built. The parts were built and assembled using three-dimensionalmodeling software-UG. Then through the interface between UG and ADAMS, theassembled models were exported to ADAMS, defined 'PART's, added constraints etc.,forming the virtual prototypes of the solar panels of HXMT and the deployable boomsof DSP.Using the software ADAMS, the deploying process of the solar panels of HXMTand the deployable booms of DSP is investigated.Based on a comprehensive survey of previous research work on virtual prototype,the innovative points in this thesis are as follows:1. Integrating the application of CAD software, finite elements analysis softwareand multi-body dynamics software;utilizing a method to combiningmechanism design and structure design.2. For the dynamics simulation of spacecraft deployable mechanism, the panelstructure dynamic characteristic is firstly considered. The deploying processof solar panel including flexible parts is simulated.3. For the simulation of spacecraft deployable mechanism, contact function isfirstly utilized to simulate the impacting process. The detail work on theimpacting process is attempted and explored.