Structure about the Dual-Axis Speed Turntable and its’ Stability Analysis
The structure and its function about a dual-axis rate turntable has been elaborated, its principle block diagram of control system is given. And its electromechanical system’s transfer function of the dual-axis rate table has been calculated and simplified reasonably based on experiments and practical situation, then a double loop control system constituted with a speed loop and a stabilization loop is got. Its’ correction link of the stabilization loop is calculated, which has a 2-order open loop transfer function. In order to achieve a suitable stability margin, the corresponding digital controller is designed, and its’ pulse transfer function response and the three-step iterative simulation results to a same sinusoidal excitation are got and compared, the same results verified the correctness of the design to the correction link.
G. Y. Lu et al., "Structure about the Dual-Axis Speed Turntable and its’ Stability Analysis", Applied Mechanics and Materials, Vol. 235, pp. 186-191, 2012