Design and analysis of multiple payload adapters of nanosatellite

Multiple payload adapters can make full use of excess payload capability on launch systems, reduce the cost of satellite launch, and keep number of satellites associated closely at the same time. In this paper, a connection and separation mechanism of multiple satellites is designed. The mechanism provides good launch environment and separation ways for satellites and has simple structure. Multiple payload adapters adopt modular design method which is easy to maintain and modify. The finite element model (FEM) of this mechanism is built. Rocket adaptor and the satellite orbital deployer are created with hexahedral units. Fittings are simulated using beam element. Screw joint is instead by MPC element. The rationality of the main structure design is validated through the modal analysis and the static analysis.