- 作者: ABD ALLA EL-MARHOMY
- 中文摘要: A general method of analysis based on Liapunov's direct method is presented for studying the behavior of the nonlinear system of differential equations governing the motion of a rotor-bearing system in the neighborhood of its equilibrium point. A model comprised of an axially symmetric rigid appendage attached at an arbitrary location along a nonuniform spinning shaft mounted on two dissimilar eight component end bearings is adopted to develop stability criteria involving different system parameters. The stability boundaries presented graphically in terms of system nondimensionalised parameters are typical examples of the types of design information available to engineers through the equations provided in this paper. Among the results reached in this paper are the demonstration of the roles played by (1) bearing mass, (2) appendage mass and dimensions, (3) bearing principal stiffness and damping coefficient, and (4) bearing cross-coupling stiffness and damping coefficients in affecting the nature of system whirl stability.
- 英文摘要: --
- 中文關鍵字: Liapunov's direct method, whirl stability, rotor-bearing systems
- 英文關鍵字: --