转子系统DEM动力学模型的等效刚度和等效力

EFFECTIVE STIFFNESS AND EFFECTIVE FORCE ON DEM DYNAMICAL MODEL OF MULTI-SPAN ROTATOR SYSTEM

摘要: 作为将散体单元法DEM(discrete elementmethod)用于多跨转子系统非线性动力学计算的两个基本问题，介绍了DEM用于转子系统数值分析时，等效刚度和等效力的计算过程并给出了相应的计算公式，同时进行了相应的讨论.

Abstract: The fundamental problems in applying DEM forinvestigation of nonlinear dynamical behavior of multispan rotatorsystem are discussed, including the determination and calculation ofeffective stiffness and effective force.