Development of a Medium Size 3-Axis Rate Table

초록

Flight dynamics and control laboratory at Inha University (FDCLI) is developing a medium size 3-axis rate table of moderate price. FDCLI has developed a single axis rate table successfully, and is expanding the work to a 3-axis system. The maximum speed will be 2 rev/sec for roll axis and 1 rev/sec for yaw axis. The angular accelerations will range between 26 rad/sec^2 for roll axis and 4.5 rad/sec^2 for yaw axis. To achieve these dynamic ranges, two DC motors of 0.25 N-m torque rating is used for the yaw axis and two motors of 0.017 N-m for the roll axis, all with proper gear reduction. The limits on the rotation angles are removed by using slip contact. The position accuracy is 30 arc minutes for the all three axis. The overall system is about 76 cm tall and 48 cm wide. This paper presents the detailed performance specifications of the rate table along with descriptions of the components.