Influence of Nonlinear Rotor-Platform Interface on Dual-Spin Attitude Dynamics

Author

Don Cronin, Missouri University of Science and TechnologyFollow

Abstract

Atmosphere Explorer-C - A dual-spin spacecraft- exhibits a bounded altitude instability characterized most importantly by persistent coning of its spin axis about the intended direction of spin. Nonlinearities, presumably at the rotor-platform interface, were identified as the likely cause of the observed behaviour. In the present paper, a rational nonlinear interface model is developed, and it is shown by integration of quasilinear equations of motion, and by approximate analysis, that the hypothesized model leads to behavior which predicts that observed.

Recommended Citation

D. Cronin, "Influence of Nonlinear Rotor-Platform Interface on Dual-Spin Attitude Dynamics," AIAA Journal, American Institute of Aeronautics and Astronautics (AIAA), Jan 1976.

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0001-1452

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1976 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

Publication Date

01 Jan 1976