Research on Opening and Closing Synchronization of Flexible Hatch on Space Shuttle

The space industry is developing rapidly, specifically with the development of the space shuttle. The position accuracy of the shuttle hatch is always a key problem when the space shuttle is in orbit. When hatch position accuracy meets the requirement of the central lock acquisition domain, the central lock can capture and lock, otherwise it will cause the hatch to not close properly. Aiming at this problem, this article solves it by using the basic theory of flexible body ADAMS. First, composite hatches are converted into an equivalent shell by using the equal stiffness substitution principle, deriving the neutral file (MNF) of the hatch by a classical module in ANSYS, and testing synchronization and accuracy of it under the condition of ideal rigidity and flexibility. Eventually, we obtain the curve of motion displacement at key points, then we can estimate whether the synchronization and accuracy of the hatch meets the requirements.