Diamagnetic bearings for MEMS: Performance and stability analysis

被引：21

作者：

Chen, Jie-Yu ^{[1
]}

Zhou, Jian-Bin ^{[1
]}

Meng, Guang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2008年 / 35卷 / 08期

基金：

中国国家自然科学基金;

关键词：

diamagnetic bearing; MEMS; stability analysis; rotordynamics;

D O I：

10.1016/j.mechrescom.2008.06.008

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Diamagnetic materials could be utilized with permanent magnets to offer a rigorous passive solution for micro bearing as a result of scale reduction effect. In this paper, we investigate the basic configuration of diamagnetic bearing and evaluate the consequent magnetomechanical behaviors in terms of load-carrying capacity and the restoring in the axial, lateral and inclination directions. Based on the derived dynamic coefficients. linear vibrational characteristics and nonlinear parametric resonance of the rotor-bearing system are studied. Results obtained indicate two major instability problems for diamagnetic bearing and shed light on the design framework for its application at the microscale. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：546 / 552

页数：7

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