Author : C. William Martz,United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 32 pages
File Size : 45,5 Mb
Release : 1961
Category : Approximation theory
ISBN : NASA:31769000421597
Method for Approximating the Vacuum Motions of Spinning Symmetrical Bodies with Nonconstant Spin Rates by C. William Martz,United States. National Aeronautics and Space Administration Pdf
The analysis includes nonconstant spin rates and inertias and considers the effects of time-varying thrust misalinements, mass unbalance, and jet damping. The method was developed for bodies having small transverse angular velocities. Results are presented in the form of equations for space-referenced Euler angles, flight-path angles, body-referenced attitude rates, and earth-referenced vehicle-trajectory coordinates. Also, equations for maximum wobble have been derived for certain input conditions. Comparisons with numerical solutions are included for two sample problems.