Control of Chaotic Motion in a Spinning Spacecraft with a Circumferential Nutational Damper

摘要: Control of chaotic vibrations in a simplified model spinning spacecraft with circumferential nutational damper is achieved using two techniques. The control methods are implemented on realistic parameter configuration which has been found to exhibit instability when sinusoidally varying torque applied the for range forcing amplitude and frequency. Such torque, practice, may arise platform dual-spin under malfunction system or from an unbalanced rotor appendages. Chaotic instabilities arising these torques could introduce uncertainties irregularities into spacecraft's attitude consequently have disastrous affects its operation. methods, recursive proportional feedback (RPF) continuous delayed feedback, recently developed techniques motion dynamical systems. Each technique outlined effectiveness strategies controlling exhibited by present compared contrasted. Numerical simulations performed results studied means time history, phase space, Poincare map, Lyapunov characteristic exponents bifurcation diagrams.