摘要
受应力分析中有限单元法的启示,本文作者提出了一种计算转子陀螺力矩的新技巧,它将一个旋成体模拟为一组由梯形断面的圆环装配而成的离散结构,首先对每一个圆环单元计算转动惯量,然后进行叠加可得转子的转动惯量和陀螺力矩。此法便于编写成计算机程序。作为一个实例,介绍了如何将此法应用于进动离心机转鼓的设计。
Inspired by the finite element method of stress analysis, a new technique was devised for calculating gyroscopic moment of rotors which will be presented in this article. A body of revolution is modelled as an assembly of trapezoidal rings, the mass moment of inertia for each ring is determined and is added for the final answer. The new system can be designed for easy programming on a computer. As an example, this article will show how the method should be used in the design of the drum of tumbler centrifuge.
关键词
离心机
进动离心机
转子
陀螺力矩
rotor, gyroscopic moment
mass moment of inertia, tumbler centrifuge.
