Dynamics research of the folded-deployable suspension for planetary exploration robot

The dynamics research of folded-deployable suspension of a new planetary exploration robot is carried out. The first three-order natural frequency and vibration mode of planetary robot in folded and deployable states are obtained respectively by finite element simulation analysis; the robot's natural frequencies in folded and deployable states are achieved respectively through vertical and horizontal vibration experiment by vibration test bed. The simulation and experimental results are consistent. It can be seen from the comparison that each order natural frequency in folded state is higher than one in deployable state, especially the first order frequency. This can provide a reference for design considered the dynamics effect of planetary robot.