摘要
在通常的转子动力学有限元分析中，在考虑圆盘单元时，常把它近似看作没有轴向宽度的质量和转动惯量元。对于某些具有宽圆盘（如离心机转鼓）的悬臂转子，这种近似会引起较大的计算误差。本文采用刚体动力学理论，重新推导了圆盘单元的有限元矩阵，使其适用于精确地分析离心机等转子的动力学特性。
In the ordinary finite element analvsis of rotor dvnamics,a disk is often taken approximately as anelement with its mass and inertia of mornent but with no width.For some overhung rotors of great-width disks,such as the rotor of the vertical centrifuge,this kind Of approximation will cause larger calculating errors.Basedon the theories of rigid-body dynamics,this paper deduced the finite elemert matrixes of a disk again in order tomake them more suitable to the precise dynamic analyses of the centrifuge of other special rotor。
出处
《机械强度》
CAS
CSCD
北大核心
1994年第3期38-40,45,共4页
Journal of Mechanical Strength
