Stability of a dual-spin spacecraft with spherical dampersThe present investigation is concerned with the stability characteristics of a specific dual-spin satellite configuration marked by a high degree of symmetry. The configuration includes a platform and a rotor. Both components contain arbitrarily located internal spherical dampers. The symmetry of the system configuration makes it possible to illustrate clearly the relationship between Routhian analysis, energy sink analysis, and digital simulation of the full nonlinear equations. Although the dual-spin spacecraft configuration contains energy dissipating devices on both platform and rotor, it is still possible to employ the rigorous, but relatively simple, Routh stability method. This method, unlike Floquet theory, has the potential of producing closed-form stability criteria. The energy sink method is capable of providing a closed-form stability criterion. Numerical simulation is a necessary requirement in the latter stages of design when the realistic perturbation environment must be considered.
Document ID
19840047801
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Laskin, R. A. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Likins, P. W. (Lehigh University Bethlehem, PA, United States)
Sirlin, S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)