A PROGRAMMABLE ELECTROMAGNETIC BEARING FOR VIBRATION CONTROL OF A FLEXIBLE SHAFT

被引：5

作者：

BRADFIELD, CD

ROBERTS, JB

KARUNENDIRAN, S

机构：

[1] School of Engineering & Applied Sciences, University of Sussex, Falmer, Brighton

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 1991年 / 113卷 / 02期

关键词：

D O I：

10.1115/1.2930164

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The transverse vibrations of flexible rotors can be reduced to safe levels by radial control forces at an intermediate span position, applied by a suitable actuator. One versatile control strategy applies forces proportional to displacement and velocity, with coefficients dependent on the rotational speed. This control can be realized with an electromagnetic bearing under microprocessor control. Suitable microprocessor software is described, to implement the required real-time computation of the control forces. Experimental results obtained from a test rig are compared with theoretical predictions. There are advantages in allowing the stiffness coefficient to become negative, provided that positive damping is simultaneously applied.

引用

页码：160 / 166

页数：7

共 13 条

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