Active lubrication applied to radial gas journal bearings. Part 1: Modeling

被引：83

作者：

Morosi, Stefano ^{[1
]}

Santos, Ilmar F. ^{[1
]}

机构：

[1] DTU Tech Univ Denmark, Dept Mech Engn, DK-2800 Lyngby, Denmark

来源：

TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 12期

关键词：

Fluid film bearings; Mechatronic system; Active lubrication; Active vibration control; VIBRATION; DESIGN;

D O I：

10.1016/j.triboint.2011.08.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Active bearings represent a mechatronic answer to the growing industrial need to high performance turbomachinery. The present contribution aims at demonstrate the feasibility of applying active lubrication to gas journal bearings. The principle of operation is to generate active forces by regulating radial injection of lubricant through the means of piezoelectric actuators mounted on the back of the bearing sleeves. A feedback law is used to couple the dynamic of a simplified rotor-bearing system with the pneumatic and dynamic characteristics of a piezoelectric actuated valve system. Selected examples show the considerable performance advantages of such new kind of bearing. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1949 / 1958

页数：10

共 33 条

[1]

AGRAWAL GL, 1998, PUBLICATION ASME

[2]

*ANSI, 1987, 1761987 ANSIIEE IEEE

[3]

AUSMAN JS, 1963, ASME J BASIC ENG, V83, P619

[4]

CADE I, 2011, P 11 INT S MAGN BEAR, P144

[5]

Childs D.W., 1993, Turbomachinery Rotordynamics

[6] Nonlinear Identification of Mechanical Parameters in a Squeeze Film Damper With Integral Mechanical Seal [J].

Delgado, Adolfo ;

San Andres, Luis .

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 2009, 131 (04)

[7]

Della PietraL., 2002, SHOCK VIB DIG, V34, P3

[8] Load capacity estimation of foil air journal bearings for oil-free turbomachinery applications [J].

Dellacorte, C ;

Valco, MJ .

TRIBOLOGY TRANSACTIONS, 2000, 43 (04) :795-801

[9] A survey of control issues in nanopositioning [J].

Devasia, Santosh ;

Eleftheriou, Evangelos ;

Moheimani, S. O. Reza .

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 2007, 15 (05) :802-823

[10]

Fox R. W., 1994, Introduction to fluid mechanics, V4th ed

← 1 2 3 4 →