Necessary and sufficient conditions for the stability of a sleeping top described by three forms of dynamic equations.
Necessary and sufficient conditions for the stability of a sleeping top described by dynamic equations of six state variables, Euler equations, and Poisson equations, by a two-degree-of-freedom system, Krylov equations, and by a one-degree-of-freedom system, nutation angle equation, is obtained by the Lyapunov direct method, Ge-Liu second instability theorem, an instability theorem, and a Ge-Yao-Chen partial region stability theorem without using the first approximation theory altogether.
Ge
Zheng-Ming
ZM
Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan, Republic of China.