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Research on a Thrust Vector Adjusting Mechanism
Abstract:
The electric propulsion system plays an important role during the operation of a
satellite, i.e., maintaining the position of the north-south poles, adjusting
the attitude, and transferring the orbit, where vector adjustment device is a
key part of the system. We developed a new large-angle device to transfer
thruster orbital, which has three driving motors and the failure of a single
motor cannot affect the operation. The posture angle and linear pair
displacement of this mechanism are simulated using forward and inverse
kinematics solutions. In the following, the actual adjustment angle was measured
with a three-coordinates measuring instrument and a gradiometer to compare with
the simulated values. This design has been successfully applied in China’s
asteroid exploration mission.